Md. Golam Azam - Academia.edu (original) (raw)

Papers by Md. Golam Azam

Plants

A field experiment was carried out with 20 genotypes of Transplant Aman (T. Aman) rice at the Dep... more A field experiment was carried out with 20 genotypes of Transplant Aman (T. Aman) rice at the Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur-1706, Bangladesh. The study was performed to evaluate the genetic deviation, trait association, and path coefficient (PC) based on grain yield (GY) and different yield-contributing agronomic characters. Variance analysis displayed extensive traits-wise variations across accessions, indicating variability and the opportunity for genetic selection for desirable traits. The high mean, range, and genotypic variances observed for most of the characters indicated a wide range of variation for these traits. All the characters indicated the minimum influence of environment on the expression of the trait and genetic factors had a significant role in the expressivity of these characters. High heritability in broad sense (h2b) and high to moderate genetic advance in percent of the mean ...

Guava (<em>Psidium guajava</em> L.) is considered as an important profitable fruit in... more Guava (<em>Psidium guajava</em> L.) is considered as an important profitable fruit in Bangladesh. The study was conducted in the fruits orchard of Agriculture Research Station (ARS), Pahartali, Chattogram and Regional Agriculture Research Station (RARS), Hathazari, Chattogram during 2019-20 to assess the genetic diversity of the in situ guava germplasm. Twenty two guava lines were assessed in this investigation. A total of 21 traits (11 qualitative and 10 quantitative) enabled an assessment of the genetic variability and construction of this guava germplasm. The maximum variation was observed in pulp color and seediness in guava fruits. Plant height ranged from 2.38 to 6.20 m with an average 3.85 m. Based girth ranged from 28.00 to 81.00 cm with an average of 47.79 cm. Fruit weight ranged from 55.0-362.0 g with average 101.92 g and yield per plant ranged from 12.53 to 126.70 kg with average 26.54 kg. The morphological dendrograph generated from agglomeration hierarchical...

Genetic divergence study is very essential for the selection of genetically diverse parents from ... more Genetic divergence study is very essential for the selection of genetically diverse parents from existence germplasm for conducting successful hybridization program. An investigation with one hundred nineteen genotypes of proso millet was carried out in Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh to study the nature and magnitude of genetic divergence following Mahalanobis D 2 statistics. The experiment was accompanied following Randomized Completely Block Design (RCBD) which replicated thrice. The 119 genotypes of proso millet were assembled into eight clusters. Among the eight clusters, cluster VI was found to be largest having 27 germplasm followed by cluster V having 20 germplasm. While the minimum number of germplasms was observed in cluster II noted as 7. High degree of genetic diversity was revealed by the genotypes of cluster III and cluster IV. Cluster III was appropriate for filling period, height of plant, weight of seed per panicle, yield of straw /plant and yield of grain /plant. Cluster VIII is suitable for early flowering and short duration proso millet variety. Cluster III is best suited for the development of dwarf variety. Weight of seed/ panicle (g) and flag leaf area (cm2) contributed most towards genetic diversity of proso millet. Analysis confirmed the lack of association between geographic origin and hereditary assortment, as germplasm from the unalike area clustered into same groups and the germplasm of alike area were congregated into different clusters. Therefore, plant breeder should assess their material for genetic diversity and should not purely depend on their geographical origin.

Agronomy, 2021

The root system is the important organ of a plant, helping to anchor the plant and take up nutrie... more The root system is the important organ of a plant, helping to anchor the plant and take up nutrients from the soil. The purpose of this investigation was to determine the magnitude of the root network system (RNS) through phenotypic variability in a broad range of maize inbred lines. The GiA Root software was used to identify root attributes from images. After germination, the inbred lines were grown hydroponically for 15 days in a high-lux plant growth room with low phosphorus (LP) and normal phosphorus (NP) treatments. Variance analysis revealed a large range of variability present among the inbred lines, with intermediate to high heritabilities ranging from 0.59 to 0.95 for all RNS traits, demonstrating uniformity through the experiments. The proportions of genetic variance ranged from 0.01–0.60 in different maize RNS traits. A strong positive linear relationship between best linear unbiased predictors (BLUPs) with estimated means was found for all the RNS traits. The Euclidean g...

Turkish Journal of Agriculture and Forestry

Introduction Bangladesh is an economically growing country where agriculture is considered the ba... more Introduction Bangladesh is an economically growing country where agriculture is considered the basis of the economy. Agriculture is playing a significant part in the socioeconomic progression and sustainable economic advancement of the country. It is also contributing to the gradual improvement of the rural as well as the whole economy by ensuring food security and alleviating poverty. It covers 15.35% of the total GDP of Bangladesh in FY 2015-16 (GOB, 2016). It is a vital and widely cultivated cereal crop necessary for global food security. In many areas of the world, maize is considered a staple food. It is regarded as the third leading crop in Bangladesh, after rice and wheat (Sandhu et al., 2007). Crop production is hampered by several natural threats such as floods, scarcity of water, salinity, and low phosphorus (Scheben et al., 2016). Phosphorus (P) shortage is considered one of the limiting materials in agricultural production (Lynch and Brown, 2008). More than 30% of maize produced in the world is affected by low P in the soil (Vance et al., 2003). The plant needs P for various activities such as energy generation, nucleic acid synthesis, photosynthesis, glycolysis, respiration, membrane synthesis and stability, enzyme activation/ inactivation, redox reactions, signaling, carbohydrate metabolism, and nitrogen fixation (Vance et al., 2003). Phosphorus is considered an important compound for agricultural production, which is nonrenewable. The source of phosphorus is rock phosphate, which is a finite source (Childers et al., 2011). More than 58% of documented phosphate on earth is located in China, Morocco, and Western Sahara (Jasinski, 2012). The returns from phosphorus fertilizer are very limiting in terms of crop production and economic outcome as phosphorus can be promptly arrested in the soil, demanding higher application rates to meet plant P requirements (Dumas et al., 2011). However, only about 20%-30% of applied P can be accumulated by cultivated plants, and the rest is lost by leaching into ground and surface water (Kochian, 2012; López-Arredondo et al., 2014). In agricultural

Asian Journal of Advances in Agricultural Research, 2021

The effect of artificial lighting in order to enhance day length for off-season dragon fruit prod... more The effect of artificial lighting in order to enhance day length for off-season dragon fruit production was examined for the first time in Bangladesh. A two factorial experiment was conducted at dragon fruit orchard of Agricultural Research Station, Pahartali, Khulshi, Chattogram to find out the best lighting duration and bulb for off-season dragon fruit production. Two factors were bulb and lighting duration for this experiment. The performance 6 hours lighting duration was significantly superior than other treatments in case of bud/pillar (43.80), fruit/pillar (43.80), fruit length (9.31 cm), fruit breadth (8.5 cm), individual fruit weight (344.62 g), yield (16.58 t/ha). 100 W IB having light intensity 225.96 lux showed superior performance over other treatments in case of bud/ pillar (49.44), fruit/pillar (34.56), fruit length (9.54), fruit weight (336.99 g), TSS (9.28%), yield (18.13 t/ha). The treatment combination (100 W IB for 6 hrs lighting) produced the highest number of fr...

Horticulturae, 2021

Eggplant is an essential widespread year-round fruit vegetable. This study was conducted using 13... more Eggplant is an essential widespread year-round fruit vegetable. This study was conducted using 130 local germplasm of brinjal to select diverse parents based on the multiple traits selection index for the future breeding program. This selection was performed focusing on 14 qualitative and 10 quantitative traits variation and genetic parameters namely, phenotypic and genotypic variance (PV and GV) and genotypic and phenotypic coefficients of variation (GCV and PCV), broad-sense heritability (hBS), genetic advance, traits association, genotype by trait biplot (G × T), heatmap analysis and multi-trait index based on factor analysis and genotype-ideotype distance (MGIDI). Descriptive statistics and analysis of variance revealed a wide range of variability for morpho-physiological traits. Estimated hBS for all the measured traits ranged from 10.6% to 93%, indicating that all the traits were highly inheritable. Genetic variances were low to high for most morpho-physiological traits, indic...

Turkish Journal of Agriculture and Forestry, 2022

A study was conducted at Bangladesh Agricultural Research Institute's greenhouse with 48 maize ge... more A study was conducted at Bangladesh Agricultural Research Institute's greenhouse with 48 maize genotypes through hydroponic culture. Two levels of treatment, namely, low phosphorus (LP) (2.5 × 10-6 mol L-1 of KH 2 PO 4) and normal phosphorus (NP) (2.5 × 10-4 mol L-1 of KH 2 PO 4), were used for this study. Morphologically, plants behave differently in low phosphorus conditions than in normal phosphorus environments. Large augmented roots were found in the plant in low phosphorus conditions. The results revealed that chlorophyll contents, shoot length, root length shoot dry weight, root dry weight, leaf area, and root/shoot ratio might be considered critical traits for screening low phosphorus tolerant maize at the seedling stage. The first four principal components (PCs) described 89% of the total variation. Forty-eight maize genotypes formed four main groups or clusters. Among these four cluster groups, except for the SPAD value, the highest number of the mean values for root length, shoot length, root/shoot ratio, root volume, leaf area, root dry weight, shoot dry weight, and total dry weight were obtained from cluster group three. By constructing a genotype × trait biplot with nine traits recorded in 48 genotypes, the highest positive relationship was recorded in total dry weight (TDW) with root dry weight (RDW), shoot dry weight (SDW), and root volume (RV). The results revealed that the SPAD value was weakly correlated with other traits. In the current study, the studied characters were highly heritable. Based on the performance, G10, G18, G23, G27, G29, G33, and G34 could be considered low phosphorus tolerant genotypes. The results of combining abilities revealed that the genotypes G9, G13, G29, G31, and G39 could be used as parents in breeding activities. The present study offers guidelines for plant breeders to develop low phosphorus tolerant maize cultivars for the sustainability of maize production in the modern era of the changing climate.

Plants, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Asian Journal of Advances in Agricultural Research, 2021

The effect of artificial lighting in order to enhance day length for off-season dragon fruit prod... more The effect of artificial lighting in order to enhance day length for off-season dragon fruit production was examined for the first time in Bangladesh. A two factorial experiment was conducted at dragon fruit orchard of Agricultural Research Station, Pahartali, Khulshi, Chattogram to find out the best lighting duration and bulb for off-season dragon fruit production. Two factors were bulb and lighting duration for this experiment. The performance 6 hours lighting duration was significantly superior than other treatments in case of bud/pillar (43.80), fruit/pillar (43.80), fruit length (9.31 cm), fruit breadth (8.5 cm), individual fruit weight (344.62 g), yield (16.58 t/ha). 100 W IB having light intensity 225.96 lux showed superior performance over other treatments in case of bud/ pillar (49.44), fruit/pillar (34.56), fruit length (9.54), fruit weight (336.99 g), TSS (9.28%), yield (18.13 t/ha). The treatment combination (100 W IB for 6 hrs lighting) produced the highest number of fruit/

Agronomy, 2021

The root system is the important organ of a plant, helping to anchor the plant and take up nutrie... more The root system is the important organ of a plant, helping to anchor the plant and take up nutrients from the soil. The purpose of this investigation was to determine the magnitude of the root network system (RNS) through phenotypic variability in a broad range of maize inbred lines. The GiA Root software was used to identify root attributes from images. After germination, the inbred lines were grown hydroponically for 15 days in a high-lux plant growth room with low phosphorus (LP) and normal phosphorus (NP) treatments. Variance analysis revealed a large range of variability present among the inbred lines, with intermediate to high heritabilities ranging from 0.59 to 0.95 for all RNS traits, demonstrating uniformity through the experiments. The proportions of genetic variance ranged from 0.01-0.60 in different maize RNS traits. A strong positive linear relationship between best linear unbiased predictors (BLUPs) with estimated means was found for all the RNS traits. The Euclidean genetic distances between the studied inbred lines ranged from 0.61 to 29.33, showing a higher amount of diversity. More than 79% of the overall genetic variation was explained by the first three principal components, with high loadings from the measurements of network length (NWL), network surface area (NWSA), network perimeter (NWP), network area (NWA), the maximum number of roots (MANR), median number of roots (MENR), network volume (NWV), network convex area (NWCA), specific root length (SRL), network depth (NWD), number of connected components (NCC), and network width (NWW). The biplot of genotype by trait interaction exposed superior genotypes with a relatively high expression of favorable trait combinations. Some outstanding genotypes with higher values of most RNS traits were identified through MGIDI analysis. These lines may be convenient for enhancing LP tolerance in maize.

International Journal of Innovative Research and Development, Jun 30, 2014

This study examines the impact of agricultural credit on rice production and food security of the... more This study examines the impact of agricultural credit on rice production and food security of the farm households in Bangladesh. A sample size of 50 households was selected purposively from two villages that were getting agricultural credit from Bangladesh Krishi Bank. Data were collected through field survey by using pre-designed and pre-tested questionnaire. Multiple regression analyses were carried out to determine the impact of credit on rice production calorie intake in household and individual levels. Cross-elasticity of demand technique was used to determine the impact of credit on inputs demand. It is revealed from the study that credit has a positive impact on the rice production. Elasticity of rice production with respect to agricultural credit was 0.85 which indicated that if credit was increased by 10% the rice production increased by 0.85%. The elasticity of fertilizer and irrigation demand with respect to agricultural credit was 0.89 and 0.82, respectively. About 50% of the respondents belonged to ultra poor whose per day calorie intake was 1541.39 kilo calorie. Twenty percent of the respondents had an average calorie intake 2021.08 kilo calorie. The rest 12% of the respondents were consumed above 2122.00 kilo calorie. The Bangladesh Krishi Bank has provided the loan only for rice production. But it was found that only 44.77% of the loan was used for rice production and 5.71% was used for food consumption. Credit was found to have positive impact on caloric intake. The elasticity of caloric intake with respect to agricultural credit was 0.09. Government &amp; non-government organizations, donor agencies, specialized banks and private organizations should extend agricultural loans to increase rice production and food security of rural poor households in Bangladesh.

International Journal of Innovative Research and Development, 2014

This study examines the impact of agricultural credit on rice production and food security of the... more This study examines the impact of agricultural credit on rice production and food security of the farm households in Bangladesh. A sample size of 50 households was selected purposively from two villages that were getting agricultural credit from Bangladesh Krishi Bank. Data were collected through field survey by using pre-designed and pre-tested questionnaire. Multiple regression analyses were carried out to determine the impact of credit on rice production calorie intake in household and individual levels. Cross-elasticity of demand technique was used to determine the impact of credit on inputs demand. It is revealed from the study that credit has a positive impact on the rice production. Elasticity of rice production with respect to agricultural credit was 0.85 which indicated that if credit was increased by 10% the rice production increased by 0.85%. The elasticity of fertilizer and irrigation demand with respect to agricultural credit was 0.89 and 0.82, respectively. About 50% of the respondents belonged to ultra poor whose per day calorie intake was 1541.39 kilo calorie. Twenty percent of the respondents had an average calorie intake 2021.08 kilo calorie. The rest 12% of the respondents were consumed above 2122.00 kilo calorie. The Bangladesh Krishi Bank has provided the loan only for rice production. But it was found that only 44.77% of the loan was used for rice production and 5.71% was used for food consumption. Credit was found to have positive impact on caloric intake. The elasticity of caloric intake with respect to agricultural credit was 0.09. Government & non-government organizations, donor agencies, specialized banks and private organizations should extend agricultural loans to increase rice production and food security of rural poor households in Bangladesh.

Journal of Bioscience and Agriculture Research, 2016

along with two reference varieties (Binatomato-4, Binatomato-5) were evaluated based on their mor... more along with two reference varieties (Binatomato-4, Binatomato-5) were evaluated based on their morpho-physiological features, reproductive characters, yield attributes and fruit yield at the experimental farm of Bangladesh Institute of Nuclear Agriculture (BINA). The experiment was laid out in a randomized complete block design with three replications. The mutants differed significantly from their morphological features (plant height, branch and leaf number, leaf area, etc.), growth characters (root weight and total dry mass plant-1 , absolute and relative growth rate), biochemical parameters (chlorophyll, total sugar, nitrate reductase and vitamin-C contents), reproductive behaviour (number of effective and non-effective flower cluster plant-1 , number of flowers plant-1 and reproductive efficiency), yield attributes and fruit yield. Superior performance in leaf area, total dry mass production, absolute growth rate, nitrate reductase activity and total sugar content in leaves, number of flower cluster and flowers plant-1 which resulted higher number of fruits plant-1. Chlorophyll content and reproductive efficiency had little or no significant contribution to fruit yield. Fruit yield had highly significant positive correlation with leaf area, total dry mass, absolute growth rate, number of flower clusters and fruits plant-1 , while fruit size had significant negative association with fruit number. This result indicates that the improvement of fruit number plant-1 could be achieved by selecting increased number of effective flower cluster plant-1. The mutant, TM-133 maintained superiority to the other mutants for yield related traits and produced highest fruit yield (95.1 t ha-1) and thus, it may be treated as a promising mutant to release as variety.

Bangladesh Agronomy Journal, 2017

A field experiment was conducted at Char Jangalia under MLT site, Laxmipur, a coastal district of... more A field experiment was conducted at Char Jangalia under MLT site, Laxmipur, a coastal district of southern Bangladesh, during Rabi season of 2015-16 to evaluate the effect of integrated nutrient management on growth and yield performance of soybean (var. Glycine max L.). Six treatment combinations, viz. T 1 = Control, T 2 = Farmers practice (25-15 Kg NP ha-1 , T 3 = 100% recommended dose (30-25-55 Kg NP ha-1 , K), T 4 = 50 % recommended dose + 1.5 t ha-1 vermi compost, T 5 = 50 % recommended dose + 5 t ha-1 compost and T 6 =50 % recommended dose + 1.2 kg ha-1 bio fertilizer were tested. The experiment was laid out in randomized complete block design with 3 replications. There were significant differences among the different treatment combinations in terms of yield and yield contributing characters. Integrated nutrient management with application of 50% of the recommended doses of urea, TSP, MoP, and biofertilizer (Bradyrhizobium) at the rate of 1.2 kg ha-1 significantly increased most of the parameters, such as the plant height, number of nodule per plant, pods per plant, seeds per pod and seed yield. The highest seed yield (2.93 t ha-1) was recorded from T 6 while the lowest seed yield (1.83 t ha-1) was obtained from T 1. The highest gross return (Tk.117200 ha-1) and gross margin (Tk. 71840 ha-1) was obtained from T 6 , whereas the lowest gross return (Tk. 70400 ha-1) and gross margin (Tk.27880 ha-1) was obtained from T 1. The overall results indicated that the application of integrated nutrient management of a combination of bio fertilizer with 50% N-P-K (15-12.5-27.5 Kg ha-1) of the recommended dose produced the maximum nodulation and seed yield of soybean in the southern coastal char land.

Journal of Bioscience and Agriculture Research, 2018

The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-201... more The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-2016 to find out the best variety and best sowing time of mustard under the agro ecological condition of Chittagong region. There were two varieties viz. V1=BARI Sarisha 14 and V1=BARI Sarisha15 and six sowing date viz. S1=10 November, S2=20 November, S3= 30 November, S4=10 December, S5=20 December and S6=30 December. Significant variations due to different sowing time and varieties were observed in days to 50% flowering, days to maturity, plant height, branches plant-1 , siliqua plant-1 , length of siliqua, seeds siliqua-1 , 1000 seeds weight (g), yield plot-1 and yield kg ha-1. Result showed that highest yield was 2083 kg ha-1 obtained from BARI Sarisha15 on 20 November (V2S2) followed by 1667 kg ha-1 obtained from BARI Sarisha14 on 20 November (V1S2). From the result it can be concluded that best variety is BARI Sarisha15 and best sowing date is 20 November for Chittagong Region but both varieties can give satisfactory if they are sown from 10 November to 10 December.

American Journal of Plant Sciences, 2018

Drought is envisaged as the greatest demolishing natural impacts throughout the world since it ha... more Drought is envisaged as the greatest demolishing natural impacts throughout
the world since it has observed extensive place of agronomical land sterile
almost the world. It’s the significant crop output-limiting producer, and elaborated
learning of its result on plant enhancement dictation is diametrical.
At present, drought tolerant hybrid maize has been trying to induce Bangladesh
especially drought affected zone to identify the drought endurance maize
genotypes. Consequently, a feasible pot study of 49 hybrid maize genotypes
were directed to determine an adequate drought level to promote aliment
and promotion of maize plant below the water stress conditions with
treatment (control and drought) and three replications. The data were received
after 35 days of sowing using appropriate procedures. Specially, the
stomata were collected by the white transparent nail polish from the lower
part of leaves. Descriptive statistic of the all traits like percentage of SPAD,
leaf rolling (LR), maximum root length (MRL), maximum shoot length
(MSL), root dry matter (RDM), shoot dry matter (SDM), length of stomata
(LS), width of stomata (WS), thickness of stomata (TS), total dry matter
(TDM) and ANOVA for control and drought condition individually showed
significant (P < 0.05) variations among the germplasm for their genotypes,
treatment and interaction. The first fourth principal components (PCs) narrated
about 82.0% of the total variation. Cluster analysis placed the 49 hybrid
into 6 main groups among those cluster; groups five showed the maximum
number mean value of traits. The highest positive relationship was obtained
from TS, WS, RDM, SDM and TDM traits by forming genotype-traits bi-plot
of 11traits of 49 genotypes. After analyzing, it is explicit that G18 (CML-80 ×
IPB911-16) and G22 (CZI-04 × IPB911-16) were the most tolerant hybrids
maize genotypes and very susceptible hybrids maize genotypes were G16
(P-12 × CML487), G34 (CML-32 × PB911-16) and G37 (P-33 × CML487). It is expected that the higher expression of considered traits might be obligatefor better yield under drought stress.

Bangladesh Agronomy Journal, 2017

The field experiment was carried out at South Lemua, MLT site, Feni (AEZ 19) during Rabi season o... more The field experiment was carried out at South Lemua, MLT site, Feni (AEZ 19) during Rabi season of 2015-16 to evaluate the performance of lentil as mixed crop with cowpea under variable seeding ratio. The treatment combinations used for the experiment were T1= Sole Lentil (100 %) @ 40 kg seed ha-1 , T2 =Sole Cowpea (100%) @ 45kg seed ha-1 , T3 = Lentil (100%) + Cowpea (10 %), T4 = Lentil (100 %) + Cowpea (20 %) and T5 = Lentil (100 %) + Cowpea (30 %). Lentil var. BARIMashur-6 and cowpea variety BARI Felon-1 were used in this study. The yield of lentil decreased with the increase of cowpea population in the mixed cropping situation. All the mixed cropping combinations showed higher lentil equivalent yield (LEY), land equivalent ratio (LER), net return and benefit cost ratio (BCR) than sole cropping. The highest lentil equivalent yield (1438 kg ha-1) and maximum land equivalent ratio (1.24) were observed in T4 treatment. Cost and return analysis showed that the highest net return (Tk. 77,890 ha-1) was found in T4 treatment while sole cowpea gave the lowest net return (Tk. 7530 ha-1). The highest benefit cost ratio (3.09) was recorded from lentil (100 %) + cowpea (20 %) whereas the minimum (1.21) from sole cowpea.

Journal of Bioscience and Agriculture Research, 2018

Yield contributing traits in thirty three rice genotypes were studied for variances, heritability... more Yield contributing traits in thirty three rice genotypes were studied for variances, heritability, correlation (genotypic and phenotypic) and path coefficient analysis. The highest phenotypic variation (σ2p), was found for No. of grain per panicle and the lowest was observed in 100 grain wt. High genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) for No. of unfilled grains per panicle, No. of grains per panicle and grains yield per hill, indicated that selection of these traits would be effective. The high heritability estimates along with low genetic advance indicates that non-additive type of gene action and genotype-environment interaction plays a significant role in the expression of the traits as observed in days to 50% flowering, No. of tillers per hill days to harvesting and panicle length (cm). No. of grains per panicle with grains yield per hill as well as length showed significant and positive correlation but No. of tillers per hill showed highly significant and negative correlation with days to 50% flowering both at genotypic and phenotypic level. Path coefficient analysis showed that No. of grains per panicle had maximum direct effect on grain yield followed by No. of panicles per hill, and No. of tillers per hill. The lowest direct effect on grain yield was exhibited by No. of unfilled grains (0.0732) followed by plant height, No. of primary branches per panicles, and No. of secondary branches per panicles respectively. Number of grains per panicle had maximum direct effect on grain yield followed by No. of panicles per hill and No. of tillers per hill. The results prescribed that there is a highly significant positive correlation with positive direct effect was observed in No. of grains per panicle, No. of panicles per hill, No. of unfilled grains per panicle, No. of primary branches and No. of secondary branches.

International Journal of Agriculture Innovations and Research, 2020

The experiment was conducted in the horticulture research field of Bangabandhu Sheikh Mujibur Rah... more The experiment was conducted in the horticulture research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during November 2017 to April 2018 to evaluate the effects of spacing on yield and quality of different pea varieties. The treatments consisted of two factors, which were six varieties and six spacing conditions. The experiment was laid out in randomized complete block design. Considering the varieties, numbers of branches per plant and seed yield were found the highest in BARI Motorshuti-1. The highest vitamin C content, total sugar content, reducing sugar and non-reducing sugar content were observed in BARI Motorshuti-3. Number of branches per plant, number of nodes per plant, 100 pod weight, pod yield, seed yield, vitamin C and sugar content were found the highest at 40×15 cm spacing. Due to interaction effect of variety and spacing, the highest seed yield was found at BARI Motorshuti-1 with 30×15 cm spacing. BARI Motorshuti-1 with 20×10 cm spacing produced the highest amount of protein. Vitamin C and total sugar content were found the highest at IPSA Motorshuti-1 with 40×15 cm and BARI Motorshuti-3 with 30×15 cm and 40×15 cm spacing, respectively.

Plants

A field experiment was carried out with 20 genotypes of Transplant Aman (T. Aman) rice at the Dep... more A field experiment was carried out with 20 genotypes of Transplant Aman (T. Aman) rice at the Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur-1706, Bangladesh. The study was performed to evaluate the genetic deviation, trait association, and path coefficient (PC) based on grain yield (GY) and different yield-contributing agronomic characters. Variance analysis displayed extensive traits-wise variations across accessions, indicating variability and the opportunity for genetic selection for desirable traits. The high mean, range, and genotypic variances observed for most of the characters indicated a wide range of variation for these traits. All the characters indicated the minimum influence of environment on the expression of the trait and genetic factors had a significant role in the expressivity of these characters. High heritability in broad sense (h2b) and high to moderate genetic advance in percent of the mean ...

Guava (<em>Psidium guajava</em> L.) is considered as an important profitable fruit in... more Guava (<em>Psidium guajava</em> L.) is considered as an important profitable fruit in Bangladesh. The study was conducted in the fruits orchard of Agriculture Research Station (ARS), Pahartali, Chattogram and Regional Agriculture Research Station (RARS), Hathazari, Chattogram during 2019-20 to assess the genetic diversity of the in situ guava germplasm. Twenty two guava lines were assessed in this investigation. A total of 21 traits (11 qualitative and 10 quantitative) enabled an assessment of the genetic variability and construction of this guava germplasm. The maximum variation was observed in pulp color and seediness in guava fruits. Plant height ranged from 2.38 to 6.20 m with an average 3.85 m. Based girth ranged from 28.00 to 81.00 cm with an average of 47.79 cm. Fruit weight ranged from 55.0-362.0 g with average 101.92 g and yield per plant ranged from 12.53 to 126.70 kg with average 26.54 kg. The morphological dendrograph generated from agglomeration hierarchical...

Genetic divergence study is very essential for the selection of genetically diverse parents from ... more Genetic divergence study is very essential for the selection of genetically diverse parents from existence germplasm for conducting successful hybridization program. An investigation with one hundred nineteen genotypes of proso millet was carried out in Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh to study the nature and magnitude of genetic divergence following Mahalanobis D 2 statistics. The experiment was accompanied following Randomized Completely Block Design (RCBD) which replicated thrice. The 119 genotypes of proso millet were assembled into eight clusters. Among the eight clusters, cluster VI was found to be largest having 27 germplasm followed by cluster V having 20 germplasm. While the minimum number of germplasms was observed in cluster II noted as 7. High degree of genetic diversity was revealed by the genotypes of cluster III and cluster IV. Cluster III was appropriate for filling period, height of plant, weight of seed per panicle, yield of straw /plant and yield of grain /plant. Cluster VIII is suitable for early flowering and short duration proso millet variety. Cluster III is best suited for the development of dwarf variety. Weight of seed/ panicle (g) and flag leaf area (cm2) contributed most towards genetic diversity of proso millet. Analysis confirmed the lack of association between geographic origin and hereditary assortment, as germplasm from the unalike area clustered into same groups and the germplasm of alike area were congregated into different clusters. Therefore, plant breeder should assess their material for genetic diversity and should not purely depend on their geographical origin.

Agronomy, 2021

The root system is the important organ of a plant, helping to anchor the plant and take up nutrie... more The root system is the important organ of a plant, helping to anchor the plant and take up nutrients from the soil. The purpose of this investigation was to determine the magnitude of the root network system (RNS) through phenotypic variability in a broad range of maize inbred lines. The GiA Root software was used to identify root attributes from images. After germination, the inbred lines were grown hydroponically for 15 days in a high-lux plant growth room with low phosphorus (LP) and normal phosphorus (NP) treatments. Variance analysis revealed a large range of variability present among the inbred lines, with intermediate to high heritabilities ranging from 0.59 to 0.95 for all RNS traits, demonstrating uniformity through the experiments. The proportions of genetic variance ranged from 0.01–0.60 in different maize RNS traits. A strong positive linear relationship between best linear unbiased predictors (BLUPs) with estimated means was found for all the RNS traits. The Euclidean g...

Turkish Journal of Agriculture and Forestry

Introduction Bangladesh is an economically growing country where agriculture is considered the ba... more Introduction Bangladesh is an economically growing country where agriculture is considered the basis of the economy. Agriculture is playing a significant part in the socioeconomic progression and sustainable economic advancement of the country. It is also contributing to the gradual improvement of the rural as well as the whole economy by ensuring food security and alleviating poverty. It covers 15.35% of the total GDP of Bangladesh in FY 2015-16 (GOB, 2016). It is a vital and widely cultivated cereal crop necessary for global food security. In many areas of the world, maize is considered a staple food. It is regarded as the third leading crop in Bangladesh, after rice and wheat (Sandhu et al., 2007). Crop production is hampered by several natural threats such as floods, scarcity of water, salinity, and low phosphorus (Scheben et al., 2016). Phosphorus (P) shortage is considered one of the limiting materials in agricultural production (Lynch and Brown, 2008). More than 30% of maize produced in the world is affected by low P in the soil (Vance et al., 2003). The plant needs P for various activities such as energy generation, nucleic acid synthesis, photosynthesis, glycolysis, respiration, membrane synthesis and stability, enzyme activation/ inactivation, redox reactions, signaling, carbohydrate metabolism, and nitrogen fixation (Vance et al., 2003). Phosphorus is considered an important compound for agricultural production, which is nonrenewable. The source of phosphorus is rock phosphate, which is a finite source (Childers et al., 2011). More than 58% of documented phosphate on earth is located in China, Morocco, and Western Sahara (Jasinski, 2012). The returns from phosphorus fertilizer are very limiting in terms of crop production and economic outcome as phosphorus can be promptly arrested in the soil, demanding higher application rates to meet plant P requirements (Dumas et al., 2011). However, only about 20%-30% of applied P can be accumulated by cultivated plants, and the rest is lost by leaching into ground and surface water (Kochian, 2012; López-Arredondo et al., 2014). In agricultural

Asian Journal of Advances in Agricultural Research, 2021

The effect of artificial lighting in order to enhance day length for off-season dragon fruit prod... more The effect of artificial lighting in order to enhance day length for off-season dragon fruit production was examined for the first time in Bangladesh. A two factorial experiment was conducted at dragon fruit orchard of Agricultural Research Station, Pahartali, Khulshi, Chattogram to find out the best lighting duration and bulb for off-season dragon fruit production. Two factors were bulb and lighting duration for this experiment. The performance 6 hours lighting duration was significantly superior than other treatments in case of bud/pillar (43.80), fruit/pillar (43.80), fruit length (9.31 cm), fruit breadth (8.5 cm), individual fruit weight (344.62 g), yield (16.58 t/ha). 100 W IB having light intensity 225.96 lux showed superior performance over other treatments in case of bud/ pillar (49.44), fruit/pillar (34.56), fruit length (9.54), fruit weight (336.99 g), TSS (9.28%), yield (18.13 t/ha). The treatment combination (100 W IB for 6 hrs lighting) produced the highest number of fr...

Horticulturae, 2021

Eggplant is an essential widespread year-round fruit vegetable. This study was conducted using 13... more Eggplant is an essential widespread year-round fruit vegetable. This study was conducted using 130 local germplasm of brinjal to select diverse parents based on the multiple traits selection index for the future breeding program. This selection was performed focusing on 14 qualitative and 10 quantitative traits variation and genetic parameters namely, phenotypic and genotypic variance (PV and GV) and genotypic and phenotypic coefficients of variation (GCV and PCV), broad-sense heritability (hBS), genetic advance, traits association, genotype by trait biplot (G × T), heatmap analysis and multi-trait index based on factor analysis and genotype-ideotype distance (MGIDI). Descriptive statistics and analysis of variance revealed a wide range of variability for morpho-physiological traits. Estimated hBS for all the measured traits ranged from 10.6% to 93%, indicating that all the traits were highly inheritable. Genetic variances were low to high for most morpho-physiological traits, indic...

Turkish Journal of Agriculture and Forestry, 2022

A study was conducted at Bangladesh Agricultural Research Institute's greenhouse with 48 maize ge... more A study was conducted at Bangladesh Agricultural Research Institute's greenhouse with 48 maize genotypes through hydroponic culture. Two levels of treatment, namely, low phosphorus (LP) (2.5 × 10-6 mol L-1 of KH 2 PO 4) and normal phosphorus (NP) (2.5 × 10-4 mol L-1 of KH 2 PO 4), were used for this study. Morphologically, plants behave differently in low phosphorus conditions than in normal phosphorus environments. Large augmented roots were found in the plant in low phosphorus conditions. The results revealed that chlorophyll contents, shoot length, root length shoot dry weight, root dry weight, leaf area, and root/shoot ratio might be considered critical traits for screening low phosphorus tolerant maize at the seedling stage. The first four principal components (PCs) described 89% of the total variation. Forty-eight maize genotypes formed four main groups or clusters. Among these four cluster groups, except for the SPAD value, the highest number of the mean values for root length, shoot length, root/shoot ratio, root volume, leaf area, root dry weight, shoot dry weight, and total dry weight were obtained from cluster group three. By constructing a genotype × trait biplot with nine traits recorded in 48 genotypes, the highest positive relationship was recorded in total dry weight (TDW) with root dry weight (RDW), shoot dry weight (SDW), and root volume (RV). The results revealed that the SPAD value was weakly correlated with other traits. In the current study, the studied characters were highly heritable. Based on the performance, G10, G18, G23, G27, G29, G33, and G34 could be considered low phosphorus tolerant genotypes. The results of combining abilities revealed that the genotypes G9, G13, G29, G31, and G39 could be used as parents in breeding activities. The present study offers guidelines for plant breeders to develop low phosphorus tolerant maize cultivars for the sustainability of maize production in the modern era of the changing climate.

Plants, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Asian Journal of Advances in Agricultural Research, 2021

The effect of artificial lighting in order to enhance day length for off-season dragon fruit prod... more The effect of artificial lighting in order to enhance day length for off-season dragon fruit production was examined for the first time in Bangladesh. A two factorial experiment was conducted at dragon fruit orchard of Agricultural Research Station, Pahartali, Khulshi, Chattogram to find out the best lighting duration and bulb for off-season dragon fruit production. Two factors were bulb and lighting duration for this experiment. The performance 6 hours lighting duration was significantly superior than other treatments in case of bud/pillar (43.80), fruit/pillar (43.80), fruit length (9.31 cm), fruit breadth (8.5 cm), individual fruit weight (344.62 g), yield (16.58 t/ha). 100 W IB having light intensity 225.96 lux showed superior performance over other treatments in case of bud/ pillar (49.44), fruit/pillar (34.56), fruit length (9.54), fruit weight (336.99 g), TSS (9.28%), yield (18.13 t/ha). The treatment combination (100 W IB for 6 hrs lighting) produced the highest number of fruit/

Agronomy, 2021

The root system is the important organ of a plant, helping to anchor the plant and take up nutrie... more The root system is the important organ of a plant, helping to anchor the plant and take up nutrients from the soil. The purpose of this investigation was to determine the magnitude of the root network system (RNS) through phenotypic variability in a broad range of maize inbred lines. The GiA Root software was used to identify root attributes from images. After germination, the inbred lines were grown hydroponically for 15 days in a high-lux plant growth room with low phosphorus (LP) and normal phosphorus (NP) treatments. Variance analysis revealed a large range of variability present among the inbred lines, with intermediate to high heritabilities ranging from 0.59 to 0.95 for all RNS traits, demonstrating uniformity through the experiments. The proportions of genetic variance ranged from 0.01-0.60 in different maize RNS traits. A strong positive linear relationship between best linear unbiased predictors (BLUPs) with estimated means was found for all the RNS traits. The Euclidean genetic distances between the studied inbred lines ranged from 0.61 to 29.33, showing a higher amount of diversity. More than 79% of the overall genetic variation was explained by the first three principal components, with high loadings from the measurements of network length (NWL), network surface area (NWSA), network perimeter (NWP), network area (NWA), the maximum number of roots (MANR), median number of roots (MENR), network volume (NWV), network convex area (NWCA), specific root length (SRL), network depth (NWD), number of connected components (NCC), and network width (NWW). The biplot of genotype by trait interaction exposed superior genotypes with a relatively high expression of favorable trait combinations. Some outstanding genotypes with higher values of most RNS traits were identified through MGIDI analysis. These lines may be convenient for enhancing LP tolerance in maize.

International Journal of Innovative Research and Development, Jun 30, 2014

This study examines the impact of agricultural credit on rice production and food security of the... more This study examines the impact of agricultural credit on rice production and food security of the farm households in Bangladesh. A sample size of 50 households was selected purposively from two villages that were getting agricultural credit from Bangladesh Krishi Bank. Data were collected through field survey by using pre-designed and pre-tested questionnaire. Multiple regression analyses were carried out to determine the impact of credit on rice production calorie intake in household and individual levels. Cross-elasticity of demand technique was used to determine the impact of credit on inputs demand. It is revealed from the study that credit has a positive impact on the rice production. Elasticity of rice production with respect to agricultural credit was 0.85 which indicated that if credit was increased by 10% the rice production increased by 0.85%. The elasticity of fertilizer and irrigation demand with respect to agricultural credit was 0.89 and 0.82, respectively. About 50% of the respondents belonged to ultra poor whose per day calorie intake was 1541.39 kilo calorie. Twenty percent of the respondents had an average calorie intake 2021.08 kilo calorie. The rest 12% of the respondents were consumed above 2122.00 kilo calorie. The Bangladesh Krishi Bank has provided the loan only for rice production. But it was found that only 44.77% of the loan was used for rice production and 5.71% was used for food consumption. Credit was found to have positive impact on caloric intake. The elasticity of caloric intake with respect to agricultural credit was 0.09. Government &amp; non-government organizations, donor agencies, specialized banks and private organizations should extend agricultural loans to increase rice production and food security of rural poor households in Bangladesh.

International Journal of Innovative Research and Development, 2014

This study examines the impact of agricultural credit on rice production and food security of the... more This study examines the impact of agricultural credit on rice production and food security of the farm households in Bangladesh. A sample size of 50 households was selected purposively from two villages that were getting agricultural credit from Bangladesh Krishi Bank. Data were collected through field survey by using pre-designed and pre-tested questionnaire. Multiple regression analyses were carried out to determine the impact of credit on rice production calorie intake in household and individual levels. Cross-elasticity of demand technique was used to determine the impact of credit on inputs demand. It is revealed from the study that credit has a positive impact on the rice production. Elasticity of rice production with respect to agricultural credit was 0.85 which indicated that if credit was increased by 10% the rice production increased by 0.85%. The elasticity of fertilizer and irrigation demand with respect to agricultural credit was 0.89 and 0.82, respectively. About 50% of the respondents belonged to ultra poor whose per day calorie intake was 1541.39 kilo calorie. Twenty percent of the respondents had an average calorie intake 2021.08 kilo calorie. The rest 12% of the respondents were consumed above 2122.00 kilo calorie. The Bangladesh Krishi Bank has provided the loan only for rice production. But it was found that only 44.77% of the loan was used for rice production and 5.71% was used for food consumption. Credit was found to have positive impact on caloric intake. The elasticity of caloric intake with respect to agricultural credit was 0.09. Government & non-government organizations, donor agencies, specialized banks and private organizations should extend agricultural loans to increase rice production and food security of rural poor households in Bangladesh.

Journal of Bioscience and Agriculture Research, 2016

along with two reference varieties (Binatomato-4, Binatomato-5) were evaluated based on their mor... more along with two reference varieties (Binatomato-4, Binatomato-5) were evaluated based on their morpho-physiological features, reproductive characters, yield attributes and fruit yield at the experimental farm of Bangladesh Institute of Nuclear Agriculture (BINA). The experiment was laid out in a randomized complete block design with three replications. The mutants differed significantly from their morphological features (plant height, branch and leaf number, leaf area, etc.), growth characters (root weight and total dry mass plant-1 , absolute and relative growth rate), biochemical parameters (chlorophyll, total sugar, nitrate reductase and vitamin-C contents), reproductive behaviour (number of effective and non-effective flower cluster plant-1 , number of flowers plant-1 and reproductive efficiency), yield attributes and fruit yield. Superior performance in leaf area, total dry mass production, absolute growth rate, nitrate reductase activity and total sugar content in leaves, number of flower cluster and flowers plant-1 which resulted higher number of fruits plant-1. Chlorophyll content and reproductive efficiency had little or no significant contribution to fruit yield. Fruit yield had highly significant positive correlation with leaf area, total dry mass, absolute growth rate, number of flower clusters and fruits plant-1 , while fruit size had significant negative association with fruit number. This result indicates that the improvement of fruit number plant-1 could be achieved by selecting increased number of effective flower cluster plant-1. The mutant, TM-133 maintained superiority to the other mutants for yield related traits and produced highest fruit yield (95.1 t ha-1) and thus, it may be treated as a promising mutant to release as variety.

Bangladesh Agronomy Journal, 2017

A field experiment was conducted at Char Jangalia under MLT site, Laxmipur, a coastal district of... more A field experiment was conducted at Char Jangalia under MLT site, Laxmipur, a coastal district of southern Bangladesh, during Rabi season of 2015-16 to evaluate the effect of integrated nutrient management on growth and yield performance of soybean (var. Glycine max L.). Six treatment combinations, viz. T 1 = Control, T 2 = Farmers practice (25-15 Kg NP ha-1 , T 3 = 100% recommended dose (30-25-55 Kg NP ha-1 , K), T 4 = 50 % recommended dose + 1.5 t ha-1 vermi compost, T 5 = 50 % recommended dose + 5 t ha-1 compost and T 6 =50 % recommended dose + 1.2 kg ha-1 bio fertilizer were tested. The experiment was laid out in randomized complete block design with 3 replications. There were significant differences among the different treatment combinations in terms of yield and yield contributing characters. Integrated nutrient management with application of 50% of the recommended doses of urea, TSP, MoP, and biofertilizer (Bradyrhizobium) at the rate of 1.2 kg ha-1 significantly increased most of the parameters, such as the plant height, number of nodule per plant, pods per plant, seeds per pod and seed yield. The highest seed yield (2.93 t ha-1) was recorded from T 6 while the lowest seed yield (1.83 t ha-1) was obtained from T 1. The highest gross return (Tk.117200 ha-1) and gross margin (Tk. 71840 ha-1) was obtained from T 6 , whereas the lowest gross return (Tk. 70400 ha-1) and gross margin (Tk.27880 ha-1) was obtained from T 1. The overall results indicated that the application of integrated nutrient management of a combination of bio fertilizer with 50% N-P-K (15-12.5-27.5 Kg ha-1) of the recommended dose produced the maximum nodulation and seed yield of soybean in the southern coastal char land.

Journal of Bioscience and Agriculture Research, 2018

The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-201... more The experiment was conducted in RARS, BARI Hathazari during Robi season in 2014-2015 and 2015-2016 to find out the best variety and best sowing time of mustard under the agro ecological condition of Chittagong region. There were two varieties viz. V1=BARI Sarisha 14 and V1=BARI Sarisha15 and six sowing date viz. S1=10 November, S2=20 November, S3= 30 November, S4=10 December, S5=20 December and S6=30 December. Significant variations due to different sowing time and varieties were observed in days to 50% flowering, days to maturity, plant height, branches plant-1 , siliqua plant-1 , length of siliqua, seeds siliqua-1 , 1000 seeds weight (g), yield plot-1 and yield kg ha-1. Result showed that highest yield was 2083 kg ha-1 obtained from BARI Sarisha15 on 20 November (V2S2) followed by 1667 kg ha-1 obtained from BARI Sarisha14 on 20 November (V1S2). From the result it can be concluded that best variety is BARI Sarisha15 and best sowing date is 20 November for Chittagong Region but both varieties can give satisfactory if they are sown from 10 November to 10 December.

American Journal of Plant Sciences, 2018

Drought is envisaged as the greatest demolishing natural impacts throughout the world since it ha... more Drought is envisaged as the greatest demolishing natural impacts throughout
the world since it has observed extensive place of agronomical land sterile
almost the world. It’s the significant crop output-limiting producer, and elaborated
learning of its result on plant enhancement dictation is diametrical.
At present, drought tolerant hybrid maize has been trying to induce Bangladesh
especially drought affected zone to identify the drought endurance maize
genotypes. Consequently, a feasible pot study of 49 hybrid maize genotypes
were directed to determine an adequate drought level to promote aliment
and promotion of maize plant below the water stress conditions with
treatment (control and drought) and three replications. The data were received
after 35 days of sowing using appropriate procedures. Specially, the
stomata were collected by the white transparent nail polish from the lower
part of leaves. Descriptive statistic of the all traits like percentage of SPAD,
leaf rolling (LR), maximum root length (MRL), maximum shoot length
(MSL), root dry matter (RDM), shoot dry matter (SDM), length of stomata
(LS), width of stomata (WS), thickness of stomata (TS), total dry matter
(TDM) and ANOVA for control and drought condition individually showed
significant (P < 0.05) variations among the germplasm for their genotypes,
treatment and interaction. The first fourth principal components (PCs) narrated
about 82.0% of the total variation. Cluster analysis placed the 49 hybrid
into 6 main groups among those cluster; groups five showed the maximum
number mean value of traits. The highest positive relationship was obtained
from TS, WS, RDM, SDM and TDM traits by forming genotype-traits bi-plot
of 11traits of 49 genotypes. After analyzing, it is explicit that G18 (CML-80 ×
IPB911-16) and G22 (CZI-04 × IPB911-16) were the most tolerant hybrids
maize genotypes and very susceptible hybrids maize genotypes were G16
(P-12 × CML487), G34 (CML-32 × PB911-16) and G37 (P-33 × CML487). It is expected that the higher expression of considered traits might be obligatefor better yield under drought stress.

Bangladesh Agronomy Journal, 2017

The field experiment was carried out at South Lemua, MLT site, Feni (AEZ 19) during Rabi season o... more The field experiment was carried out at South Lemua, MLT site, Feni (AEZ 19) during Rabi season of 2015-16 to evaluate the performance of lentil as mixed crop with cowpea under variable seeding ratio. The treatment combinations used for the experiment were T1= Sole Lentil (100 %) @ 40 kg seed ha-1 , T2 =Sole Cowpea (100%) @ 45kg seed ha-1 , T3 = Lentil (100%) + Cowpea (10 %), T4 = Lentil (100 %) + Cowpea (20 %) and T5 = Lentil (100 %) + Cowpea (30 %). Lentil var. BARIMashur-6 and cowpea variety BARI Felon-1 were used in this study. The yield of lentil decreased with the increase of cowpea population in the mixed cropping situation. All the mixed cropping combinations showed higher lentil equivalent yield (LEY), land equivalent ratio (LER), net return and benefit cost ratio (BCR) than sole cropping. The highest lentil equivalent yield (1438 kg ha-1) and maximum land equivalent ratio (1.24) were observed in T4 treatment. Cost and return analysis showed that the highest net return (Tk. 77,890 ha-1) was found in T4 treatment while sole cowpea gave the lowest net return (Tk. 7530 ha-1). The highest benefit cost ratio (3.09) was recorded from lentil (100 %) + cowpea (20 %) whereas the minimum (1.21) from sole cowpea.

Journal of Bioscience and Agriculture Research, 2018

Yield contributing traits in thirty three rice genotypes were studied for variances, heritability... more Yield contributing traits in thirty three rice genotypes were studied for variances, heritability, correlation (genotypic and phenotypic) and path coefficient analysis. The highest phenotypic variation (σ2p), was found for No. of grain per panicle and the lowest was observed in 100 grain wt. High genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) for No. of unfilled grains per panicle, No. of grains per panicle and grains yield per hill, indicated that selection of these traits would be effective. The high heritability estimates along with low genetic advance indicates that non-additive type of gene action and genotype-environment interaction plays a significant role in the expression of the traits as observed in days to 50% flowering, No. of tillers per hill days to harvesting and panicle length (cm). No. of grains per panicle with grains yield per hill as well as length showed significant and positive correlation but No. of tillers per hill showed highly significant and negative correlation with days to 50% flowering both at genotypic and phenotypic level. Path coefficient analysis showed that No. of grains per panicle had maximum direct effect on grain yield followed by No. of panicles per hill, and No. of tillers per hill. The lowest direct effect on grain yield was exhibited by No. of unfilled grains (0.0732) followed by plant height, No. of primary branches per panicles, and No. of secondary branches per panicles respectively. Number of grains per panicle had maximum direct effect on grain yield followed by No. of panicles per hill and No. of tillers per hill. The results prescribed that there is a highly significant positive correlation with positive direct effect was observed in No. of grains per panicle, No. of panicles per hill, No. of unfilled grains per panicle, No. of primary branches and No. of secondary branches.

International Journal of Agriculture Innovations and Research, 2020

The experiment was conducted in the horticulture research field of Bangabandhu Sheikh Mujibur Rah... more The experiment was conducted in the horticulture research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during November 2017 to April 2018 to evaluate the effects of spacing on yield and quality of different pea varieties. The treatments consisted of two factors, which were six varieties and six spacing conditions. The experiment was laid out in randomized complete block design. Considering the varieties, numbers of branches per plant and seed yield were found the highest in BARI Motorshuti-1. The highest vitamin C content, total sugar content, reducing sugar and non-reducing sugar content were observed in BARI Motorshuti-3. Number of branches per plant, number of nodes per plant, 100 pod weight, pod yield, seed yield, vitamin C and sugar content were found the highest at 40×15 cm spacing. Due to interaction effect of variety and spacing, the highest seed yield was found at BARI Motorshuti-1 with 30×15 cm spacing. BARI Motorshuti-1 with 20×10 cm spacing produced the highest amount of protein. Vitamin C and total sugar content were found the highest at IPSA Motorshuti-1 with 40×15 cm and BARI Motorshuti-3 with 30×15 cm and 40×15 cm spacing, respectively.

This review paper was prepared to highlight the meaning of diallel analysis as well as genetic di... more This review paper was prepared to highlight the meaning of diallel analysis as well as genetic diversity analysis and their importance in selecting the appropriate parents for hybridization. The understanding of general combining ability (GCA), specific combining ability (SCA), heritability, environmental effect, gene action, degree of dominance and diverse plant group is basic requisite for plant selection in crop improvement program. Maize varieties namely CML 161, KSU 4-58 and cross CML 161 × CML 424 and CML 424 × KSU 8-33 are rewarding for plant breeding program for their better performance in GCA and SCA respectively. All characters under studied of faba bean are highly heritable except seed yield which is medium heritable. Water melon varieties CS-19-S7 (P 1),BL-14-S7 (P 2), 6372-4-S7 (P 3), and CH-8-S7 (P 4) showed location specific adaptability due to environmental effect. In case of fruit setting character, bottle gourd variety Pusa Naveen contains high frequency of dominant alleles and PBOG 13 and PBOG 22 have maximum number of recessive alleles. Crossing between cluster II (BARI Sarisha9 and SAU Sarisha1) and Cluster III