Evaluation of genetic variation in segregating population of pea (Pisum sativum L.) (original) (raw)
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Plant Archives, 2022
The present study was conducted to study genetic variability and association among agronomic characters of pea (Pisum sativum L.) genotypes. The field experiment was conducted using ten genotypes at College of Agricultural Sciences (CAS) of International University of Business Agriculture and Technology (IUBAT), Dhaka, Bangladesh during the Rabi season (November 2020 to March 2021). Treatments were using the randomized complete block design (RCBD) with three replications. Highly significant (p ≤ 0.01) differences among the tested genotypes were observed. The results obtained revealed that the mean squares of the genotypes (G6) were best for 50% flowering (50.38), days to maturity (122.08) and fresh pod shelling percentage (65.29%). Genotype (G2) had highest plant height (142.08 cm), pods plant-1(39.96) and seed yield plant-1 (52.04 gm). G9 had maximum 100-seed fresh (43.90 gm) and dry (21.29 gm) weight. Genotype (G5) had best primary branches plant-1 whereas G8 had maximum pod length (8.86 cm) and seeds pod-1 (6.26). The estimates of heritability and genetic advance were high for days to 50% flowering (0.99, 35.38%), plant height (0.95, 46.88%) and seed yield plant-1 (0.97, 62.47%). High heritability with moderate genetic advance were observed for days to maturity (0.97, 20.20%), pod length (0.95, 15.37%) fresh pod shelling percentage (0.82, 21.58%), 100-seed fresh (0.90, 29.52%) and dry weight (0.93, 22.68%). Significant and positive phenotypic coefficient of correlation was exhibited by seed yield plant-1 with plant height (rp = 0.64), days to 50% flowering (rp= 0.63), days to maturity (rp = 0.78), pods plant-1 (rp = 0.72), pod length (rp = 0.66), fresh pod shelling percentage (rp = 0.64), 100-seed fresh weight (rp = 0.65) and 100-seed dry weight (rp = 0.62). Significant and positive genotypic coefficient of correlation was exhibited by seed yield plant-1 with plant height (rg= 0.81), days to maturity (rg= 0.70) and pods plant-1 (rg= 0.84). Among tested genotypes G6, G2, G9 and G5 performed better, therefore could be used in future breeding programs. These traits best contributing to yield variation that emphasis by breeders for future yield improvement of the crop. It can be conclude that pea yield can be successfully improved by studying genetic variability and its agronomic characters.
Genetic Variability in Advanced Generations of Vegetable Pea (Pisum sativum L
An experiment was undertaken to study genetic variability and character association in 26 advanced lines of vegetable pea (Pisum sativum L.) based on eight characters. Among twenty six advanced lines twelve obtained from the cross between Edible Podded Pea and IPSA Motorsuty-1, nine obtained from the cross between Local White and IPSA Motorsuty-3 and five parental lines were included to measure genetic variability. The field experiment was conducted at the research farm, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh. Analysis of variance showed significant differences among the genotypes for all characters. Phenotypic coefficients of variation (PCV) was close to genotypic coefficients of variation (GCV) for all the characters except branches per plant, seeds per pod, pods per plant, 100-seed weight and seed yield per plant. High heritability associated with high genetic advance was observed for plant height, pod length and seed yield per plot. Significant positive genotypic and phenotypic correlation between seed yield per plant and days to 50% harvest, pod length, pod breadth and seeds per pod were observed. Path coefficient analysis revealed that days to 50% flowering, days to 50% harvest, number of branches per plant, pods per plant, seeds per plant and 100-seed weight had positive direct effect on seed yield per plant.
Study of genetic variability in field pea (Pisum sativum L.)
Journal of Pharmacognosy and Phytochemistry, 2021
The investigation was carried out at Research cum Instructional form of S.G. College of Agriculture and Research Station, Kumhrawand, Jagdalpur (C.G.) at during the year 2019-20. Studies undertaken to estimate the genetic parameters for eleven characters with 21 diverse genotypes of field pea. The analysis of variance shows large variability present among the genotypes studied. High to moderate GCV and PCV estimates for the traits number of primary branches per plant, number of pods per plant, and plant height (cm). High heritability coupled with high genetic advance as percentage of mean were observed for the characters like plant height (cm), number of primary branches per plant, pods per plant, and seed yield per plant (g).
Ecology, Environment and Conservation
A field experiment was carried out to determine the genetic variability, heritability and Genetic advance present in twenty-two genotypes of garden pea during Rabi season 2021-22 at ICAR-Krishi Vigyan Kendra, Babbur farm, Hiriyur. The experiment was laid out in Randomized Complete Block Design with two replications. Observations were recorded on various yield and yield contributing characters. In general, the magnitude of the phenotypic coefficient of variation (PCV) was greater than that of the genotypic coefficient of variation (GCV) and the narrow difference between them indicates less environmental influence on the expression of the trait. High PCVand GCV (>20%) were recorded on plant height, number of branches per plant, pod thickness, number of pods per plant and non-reducing sugars which indicates the presence of high genetic variation and scope for effective improvement. All the characters studied in this experiment showed high heritability (>60%) in a broad sense coup...
Estimation of Genetic Variability in Pea (Pisum Sativum L.)
Journal of Global Innovations in Agricultural and Social Sciences ), 2014
Genetic variability estimation was conducted in twelve genotypes of peas during growing season 2011-12. Analysis of variance was highly significant for all characters studied except plant height present high scope for selection. The highest genotypic and phenotypic co-efficient of variation were recorded for pod per plant (31.62, 31.99) followed by seed yield per plant (22.87, 23.65), cluster per plant (18.81, 20.21) and lowest was noted for days to maturity (1.88, 2.15). High heritability with high genetic advance as percent of means was recorded for pod per plant (0.98, 64.37%) followed by seed yield (0.94, 45.56%). The lowest was observed for plant height (0.35, 13.80%). The study indicates that emphasis should be given to these characters for yield improvement.
Genetic Variability Analysis for Yield and its Components in Field pea (Pisum sativum L.)
The present experiment was conducted during November 2016-March 2017 in the department of Genetics & Plant Breeding, IGKV, Raipur to estimate variability analysis traits of 8 field pea genotypes. The experiment was laid out in a Randomized Complete Block Design with three replications at AICRP on MULLaRP Research Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.). The genotype showed moderate to high genotypic coefficient of variability (GCV), phenotypic coefficient of variability (PCV), heritability and genetic advance were observed for number of pods plant-1 , number of seeds plant-1 , seed yield plant-1 biological yield plant-1 and swelling index. The magnitudes of phenotypic variance of these traits were higher than the genotypic variance, indicating that the genotypic component was major contributor to total variance. Among all traits swelling capacity exhibited high GCV and PCV (46.3 and 26.52) followed by number of pods plant-1 (24.73 and 22.94) and seed yield plant-1 (23.47 and 22.38). High broad sense heritability exhibited by number of seeds plant-1 (95.52%) followed by seed yield plant-1 (90.88%) and number of pods plant-1 (86.03) indicated the presence of additive gene effects.
2017
Forty six pea genotypes were evaluated for thirteen morphological characters during Rabi season, 2010 at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. Analysis of variance (ANOVA) test revealed significant differences among the genotypes for all the traits. Days to first flowering, plant height, branches plant , pod length, hundred seed weight, pods plant , seeds plant and seed yield plant exhibited that they 1 1 1 1 were controlled by additive gene action and selection for the improvement of these traits would be rewarding. The phenotypic variance was higher than the corresponding genotypic variance for all the characters. All the characters showed moderate to low phenotypic and genotypic coefficient of variation. Genotypic coefficient of variation was the highest for hundred seed weight (37.24) followed by number of branches plant (15.96) 1 and seeds plant (15.27). Hundred seed weight had the highest heritability (95.97). Pod length, hundred seed 1 weight, pods plant a...
International Journal of Genetics and Genomics, 2021
An experiment was carried out to measure variability, heritability, genetic advance and correlation coefficient for yield and yield related traits in ten Pea (Pisum sativum L.) genotypes at Tarnab-Peshawar, during cropping season 2016-17. To identify the best genotypes for further breeding these genotypes were evaluated in a randomized complete block design with three replications. All genotypes were grown in 3m long ridges, which were kept 60cm apart where plant to plant distance was 30cm. To reduce experimental error, cultural practices were performed uniformly for all genotypes. Data was collected from ten randomly selected plants from each genotype in each replication. Highly significant (p ≤ 0.01) differences were observed for days to 50% flowering, plant height, primary branches plant-1 , days to maturity, pods plant-1 , pod length, fresh pod shelling percentage, 100-seeds fresh and dry weight, seeds pod-1 and seed yield plant-1. Among genotypes Sultan was best for 50% flowering (50.38), days to maturity (122.08) and fresh pod shelling percentage (65.29%). Genotype PL-4 had maximum plant height (142.08 cm), pods plant-1 (39.96) and seed yield plant-1 (52.04 g). Anmol had maximum 100-seed fresh (43.90 g) and dry (21.29 g) weight. Genotype Sarsabz had maximum primary branches plant-1 whereas Adventa Selection had maximum pod length (8.86 cm) and seeds pod-1 (6.26). The estimates of heritability and genetic advance were high for days to 50% flowering (0.99, 35.38%), plant height (0.95, 46.88%) and seed yield plant-1 (0.97, 62.47%). High heritability with moderate genetic advance were observed for days to maturity (0.97, 20.20%), pod length (0.95, 15.37%) fresh pod shelling percentage (0.82, 21.58%), 100-seed fresh (0.90, 29.52%) and dry weight (0.93, 22.68%). Significant and positive phenotypic coefficient of correlation was exhibited by seed yield plant-1 with plant height (r p = 0.64), days to 50% flowering (r p = 0.63), days to maturity (r p = 0.78), pods plant-1 (r p = 0.72), pod length (r p = 0.66), fresh pod shelling percentage (r p = 0.64), 100-seed fresh weight (r p = 0.65) and 100-seed dry weight (r p = 0.62). Significant and positive genotypic coefficient of correlation was exhibited by seed yield plant-1 with plant height (r g = 0.81), days to maturity (r g = 0.70) and pods plant-1 (r g = 0.84). Among tested genotypes Sultan, PL-4, Anmol and Sarsabz performed better, therefore could be used in future breeding programs.
Research Square (Research Square), 2023
Background: Peas, also known as garden peas or green peas, are a winter season crop that is grown extensively in tropical and subtropical regions of the world. The plant is known for its ability to x atmospheric nitrogen, which helps to improve soil fertility and reduce the need for nitrogen fertilizers. In addition, the pea seed is a rich source of high-quality protein and minerals, making it a nutritious food for humans and animals alike. Peas are commonly used in a variety of dishes, including soups, stews, salads, and side dishes.The breeding objective to develop cultivar with high yield and constant production, maturity and resistance against to biotic and abiotic stress. To ful ll requirement of breeding programme genetic diversity are prerequisite to select genetically diverse parent for hybridization to incorporate known gene for particular characters within a germplasm.
International Journal of Genetics and Genomics
Field pea (Pisumsativum L.) is an annual herbaceous legume belonging to the family Fabaceae that adapted to cool moist climate with moderate temperature. The species P. sativumis dominant in Ethiopia even though wild and primitive forms are also known to exist in the high elevation of the country. No sufficient work has been done for understanding and describing the nature and extent of genetic variability on Field Pea. Thus use of genetic variability is suggested to alleviate the shortage of released varieties in Field pea. The studies of association characters solve the low yield of field pea in Ethiopia. Therefore, the present study was conducted to study genetic variability and association among agronomic characters of field pea (Pisumsativum L.) genotypes. The field experiment was conducted using 29 varieties and 7 accessions at Sinana Agricultural Research Centre during 2013/14 main growing season. Treatments were arranged in Simple Lattice design with two replications. The results obtained revealed that the mean squares of the genotypes were highly significant for most of the characters (p<0.05) except for days to emergence, days to flowering, pods per plant, above ground biomass and harvest index implying that wide range of variability has been obtained for the traits studied. The genotypic coefficient of variation ranged from 2.91% for plant height to 37.9% for above ground biomass, while phenotypic coefficient of variation ranged from 6.28% for days to maturity to 62.6% for above ground biomass. The estimated broad sense heritability ranged from 6.9% for yield per plant to 93.0.0% for pod length. Correlation between different traits and seed yield indicated that there was marked positive and highly significant association of seed yield with days to emergence (rg=0.296**), days to maturity (rg=0.184**), seeds per pod (rg=0.325**) and harvest index (rg=0.341**) indicating the yield improvement perhaps be contributed to changes in these traits. The path analysis at phenotypic level revealed that maximum positive direct effect was exerted by 100 seed weight (1.754) followed by pod length (2.211) and days to emergence (2.056). These traits best contributing to yield variation that emphasis by breeders for future yield improvement of the crop. It can be conclude that Field pea yield can be successfully improved by studying genetic variability and its agronomic characters.