Genetic Variability in Yield Attributes of Lentil Genotypes under New Alluvial Zone (original) (raw)
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Background: Lentil is the major cultivated pulse crop in the state of West Bengal in terms of total area coverage under cultivation. Selection of high yielding and better quality genotype is the prime vital matter to increase productivity. Investigation and a better understanding of the variability existing in a population base of the crop are pivotal to crop improvement so that the plant breeders can exploit it. Methods: The current study has been carried out at the experimental farm of the University of Calcutta during 2016-2017 in a plot designed with the randomized block design. It was carried out to estimate the magnitude of genetic variability, heritability and genetic advance of fifty-four lentil germplasms. Result: Moderate to high heritability, GCV, PCV, GA and GA % of mean was obtained by days to1 st flowering, days to 50% flowering, pods per plant and harvest index. The genotypic and phenotypic association of seed yield was significantly positive with traits like plant height, pods/plant, 100 seed weight and harvest index. Characters like days to 50% flowering, plant height, primary branches per plant, pods/plant, pod length, 100 seed weight and harvest index shows a positive direct effect on seed yield in path analysis suggesting select for such traits while exercising selection for seed yield per plant in lentil.
International Journal of Plant & Soil Science
Aims: To evaluate the genotypes for different yields and yield attributing morphological traits by estimation of GCV, PCV, heritability (h2) in a broad sense and genetic advance as percent of the mean. To study the character association between yield and yield attributes and further partitioning into their direct and indirect effect on yield for consideration of appropriate traits to facilitate the selection of desirable genotypes. Place and duration of Study: Lentil genotypes were evaluated in the instructional farm of Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal during the rabi season of 2019-2020 and 2020-2021. Methodology: Forty lentil genotypes including two checks viz., WBL77 and IPL220 were evaluated in alpha lattice design with three replications following the standard cultural practices. The observations were recorded as the average of the same in five randomly sampled plants in each plot for all the eleven attributes studied. Statistical analysis ...
Current Journal of Applied Science and Technology, 2020
The present investigation was carried out on thirty-six lentil genotypes at the farm of Bihar Agricultural University, Sabour, Bhagalpur in 2018-19. The genetic divergences were examined using Mahalanobis D2 statistics for two dates of sowing i.e normal sown and late sown condition. The presence of variation among genotypes was revealed by ANOVA for considerable traits which come out as significant for all traits under study except several primary branches per plant, the number of pods per cluster under both normal and late sown condition and the number of seeds per pod in late sown condition. The study on genotypic variability, correlation and path analysis was done to know the direct and indirect relationship on seed yield and yield components for enhancement of economic yield. The total genotypes were grouped into 7 clusters under a timely sown condition such as. Cluster I being the largest comprising 10 genotypes, followed by cluster II with 8 genotypes, cluster III with 7 genot...
Legume Research - An International Journal, 2015
The study was undertaken to develop and identify high yielding and better quality cultivars through line x tester analysis. Seventeen genotypes and 30 F 1 hybrids obtained by crossing 15 lines and 2 testers in line x tester mating system were sown in randomized complete block design. Significant differences were observed among parents for all the traits except seeds per pod. Lines L-658, L-666, L-407, L-354 and PL-406 were good general combiners for seed yield and most of its components, whereas L-617, L-737, L-635, L-412 were good general combiners for yield and quality components and L-649 was good general combiner for earliness. The specific cross combinations Vipasa x L-412, PL-406 x L-617, Vipasa x L-620, PL-406 x L-651, PL-406 x L-630, Vipasa x L-649 and PL-406 x L-635 were outstanding for seed yield and most of its components. Based on per se performance, sca effects and standard heterosis, cross combination PL-406 x L-649 was best for days to 50% flowering; PL-406 x L-651 best for pods per plant; Vipasa x L-652 and PL-406 x L-354 were observed to be best for protein content. The early flowering genotypes (PL-406 x L-649) identified in the present study may be exploited for the development of drought tolerant lentil genotypes.
CORRELATION AND PATH COEFFICIENT ANALYSES OF YIELD AND SOME YIELD COMPONENTS IN LENTIL
Samir R. E. Abo-Hegazy, T. Selim and E. A. A. El-Emam, 2012
Correlation and path coefficient analyses are essential tools in selection experiments. They were used to determine direct and indirect relationships between yield and certain plant characters in six exotic genotypes, i.e. two Egyptian families and two Egyptian cultivars of lentil (Lens culinaris). The 10 lentil genotypes were evaluated during two successive seasons (2010/11 and 2011/12) in two locations (Sids and El-Mataana Research Stations, ARC). The design used was a randomized complete blocks design (RCBD) with three replications. Combined analysis of variance revealed highly significant effects (p<0.05) for genotypes (G), seasons (Y) and locations (L) for most characters evaluated. Cultivar Giza 9 showed the highest number of pods plant-1, number of seeds plant-1 and seed yield plant-1. Highly significant positive correlations were detected between seed yield plant-1 and each of number of pods plant-1 (r = 0.973**) and number of seeds plant-1 (r = 0.971**). However, highly significant negative correlations were observed between seed yield and each of days to 50% flowering (r = - 0.783**) and days to maturity (r = - 0.812**). Path analysis revealed that number of seeds plant-1, followed by number of pods plant-1 had the highest positive direct effects on seed yield plant-1 (0.617** and 0.162, respectively). Number of seeds plant-1 via number of pods plant-1 gave the highest positive indirect effect on seed yield plant-1 (0.609), These results indicate that number of seeds plant-1 and number of pods plant-1 are the principal yield components, and selection for these traits may be useful in improving seed yield in lentil. Besides, the results revealed that the greatest parts of lentil yield variability were explained by the direct effect of number of seeds plant-1 (34.64%), followed by days to maturity (5.51%) and number of pods plant-1 (2.39%). From the results of correlation coefficients it can be concluded that indirect selection for any character with a significantly positive association with yield would improve the productivity of lentil crop. And that number of seeds plant-1 is the principal yield component, and selection for this trait may be useful in improving seed yield in lentil.
LEGUME RESEARCH - AN INTERNATIONAL JOURNAL, 2017
Character association in forty eight genotypes of lentil was studied for nine different agro-morphological characters in normal and late sown conditions. Normal sown condition was taken into consideration as optimum environment and late sown as heat stressed environment. The correlation study revealed consistent positive significant character association (at genotypic and phenotypic levels) of pods per plant with seed yield per plant in both sowing conditions. So this character may be considered for yield improvement. From path coefficient analysis study it was revealed that pods per plant showed consistently positive direct effect on seed yield/plant for both sowing conditions.
Evaluation of Lentil Genotypes in Different Sowing Windows in the New Alluvial Zone of West Bengal
Legume Research- An International Journal, Volume 47 Issue 6: 911-916 (June 2024)
Background: Being a cool season crop, lentil is very sensitive to temperature during its growth stages. It is found that delayed harvest of the preceding crop which is most frequently rice causes the majority of the country's lentil sowings to be postponed in India. As a result, the late-sown crop suffers during the seed-filling stage due to the rising high temperatures in most of its cultivated areas and results in lower yield. Therefore, there is a need to work out the optimum sowing time for realizing maximum yield potential as well as the selection of varieties suitable for normal as well as late sown condition of the crop. Methods: A field experiment was carried out in the new alluvial zone of West Bengal at the District Seed Farm of BCKV, Kalyani during the two subsequent rabi seasons (November-March) of 2019-2020 and 2020-2021 to examine the difference in yield between normal and late seeding conditions for various lentil cultivars. There were a total of ten genotypes evaluated, with each one being planted at one of two different times (15 th Nov and 30 th Nov). Result: The experimental findings revealed that lentil sown on 15 th November recorded higher seed yield (2.34 t ha-1) compared to 30 th November sown crop (1.63 t ha-1). Among the ten varieties, unreleased genotype C 23 E 21 recorded the highest seed yield (2.25 t ha-1), followed by ILL 10802 (2.18 t ha-1). According to the results of this study, delaying the sowing window from the middle to the end of November can reduce yields by as much as 27.77%. Therefore, it is prudent to encourage the lentil farmers in the new alluvial zone region of West Bengal to sow their crops no later than the 15 th of November of the Rabi season, to prevent a drop in production.
2021
This research was conducted in 2015 year in Kahramanmaras province (37°32'09.5"N 36°55'01.2"E) with 3 lentil genotypes (CAGIL, FIRAT-87, and FLIP 2005-20 L). In the research, direct and indirect effects of yield components on seed yield were examined by correlation and path coefficient analysis. The correlation coefficients between the investigated features were found to be insignificant. According to the path coefficients, the highest positive direct effect on seed yield was determined as pod number per plant (p=4.015). On the other hand, the highest negative direct effect on seed yield was obtained from plant height (p=-3.606). The indirect effect of the seed number per plant over number of days until maturity on the seed yield was determined as the highest positive indirect effect (p=55.546%). The indirect negative highest effect on seed yield was determined in the pod number per plant over thousand seed weight (p=51.488%). As a result, the number of pods per plant should be taken into consideration by the breeders due to direct effect of it was positive and high.
Study of combining ability and components of variation of yield of some lentil lines
J. Life Earth Sci, 2016
This study was conducted with fifteen crosses and six parents of Lens culinarisMedic. to reveal the general combining ability, specific combining ability and components of vatiations and their ratios. The variation due to general combining ability (gca) was found to be significant for days to flower, plant height at first flower, canopy area at maximum flower and root weight indicated that additive gene actions played significant role for the expression of these characters. The highly positive sca estimations were recorded in the cross, P1×P2for number of secondary branches at first flower, pod weight per plant, seed weight per plant and root weight and the cross P1×P3 for canopy area at maximum flower, number of secondary branches at maximum flower, number of pods perplant and individual plant weight were indicated as good specific combiners. In F1generation, the component D was significant for days to flower, plant height at first flower, number of primary branches at first flower and canopy area at maximum flower. The values of F were non significant for all the characters except number of primary branches at first flower indicating that equal amount of dominant and recessive genes were present in the parents of F1generation. Two dominant components of variance, H1was significant for canopy area at maximum flower and H2for days to flower, number of primary branches at first flower and canopy area at maximum flower. The ratios of [(H1/D)]1/2suggested that over dominance was found for number of secondary branches at first flower, number of seeds per plant, seed weight per plant, individual plant weight and root weight. The ratio, (4DH1)1/2+F/(4DH1)1/2-F revealed that the values of the ratio were more than one recorded in canopy area at maximum flower , number of secondary branches at maximum flower, number of pods per plant, number of seeds per plant, seed weight per plant and root weight indicating the presence of an excess of dominant genes in the parents. The ratio, h2/H2showed that only one group of genes controlled the eleven characters except plant height at first flower and two groups of genes controlled plant height at first flower. The highest value of heritability was obtained for plant height at first flower (0.495144).
The present study was conducted to assess the genetic variability parameters and associations among the yield, yield attributing and nutritional traits. Variation analysis revealed a narrow difference between PCV and GCV estimates for most of the characters except seed/pod, biological weight and seed yield per. All traits show high heritability coupled with high genetic advance for most of the traits suggesting the preponderance of additive gene action. Correlation coefficient study revealed that seed yield/plant shows significant & positive relationship with biological weight, pods/plant, harvest index, hundred seed weight & seed/pod. The result of association analysis revealed that biological yield per plant and harvest index were the most important components for getting higher yield. The lentil genotypes were also characterized for stem, flower, leaf, growth habit and seed traits as per PPV&FRA guidelines showing considerable variability for all characters studied.