Studies on genetic variability and heterosis in vegetable pea (Pisum sativum L.) under high hills condition of Uttarakhand, India (original) (raw)
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Journal of Pharmacognosy and Phytochemistry, 2019
30 genotypes of garden pea were evaluated at Vegetable Research Farm, CHF, CAU, Pasighat, East Siang, Arunachal Pradesh, for twenty two parameters through genetic variability, heritability and genetic advance for yield and yield attributing. Results revealed that, heritability exerts at high degree for all the plant characters studied viz. plant height, days to first flowering, days to first pod harvesting, ascorbic acid, protein content, pod weight, shelling percentage, internodal length, number of primary branches per plant, pod yield per plant, pod yield per hectare as well for other yield attributing characters. Plant height, internodal length and number of primary branches per plant showed highest genetic advance and lowest for days to first pod harvest. High heritability coupled with high genetic advance was observed for plant height, internodal length and number of primary branches per plant. Therefore, from the above obtained results it can be concluded that the characters studied are governed by additive gene effect. Hence, adoption for selection of elite genotype on the basis of these characters will result in effective crop improvement for higher yield and yield attributing characters.
International Journal of Current Microbiology and Applied Sciences , 2017
The present investigation was carried out to estimate phenotypic and genotypic coefficient of variation, heritability (broad sense), genetic advance and genetic gain for 15 quantitative traits in 21 different genotypes of Garden pea during Rabi 2011-12 at Vegetable Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi (U.P.). Significant differences among the genotypes were observed for all the characters under study. Mean performance recordings showed genotype VRP-38 has earliest flowering, VRP-3 has maximum number of primary branches, VRP-7 for pod yield and VRP-372 recorded maximum seed yield. The PCV and GCV values were high for plant height, seed weight per pod and number of primary branches per plant. High heritability and moderate genetic gain was observed for characters like days to 50% flowering, days to 100% flowering, length of garden pea pods and width of garden pea pods. This indicated the influence of non additive gene action and environment in the expression of these traits.
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.
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...
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.
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...
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.
Legume Research- An International Journal, Volume 47 Issue 3: 385-390 (March), 2024
Background: Garden pea is a cool season vegetable crop cultivated extensively throughout the world. Besides nutritional quality it also boosts soils through the fixation of atmospheric nitrogen. The most important task of pea breeding is to develop varieties with high and stable production, different maturity types and resistance against biotic and abiotic stresses. To fulfil these objectives, analysis of genetic diversity is the prerequisite to choose genetically diverse parents for a successful hybridization program and to know the source of genes for a particular trait within the available germplasm. Methods: A study was conducted at ICAR-Indian Institute of Vegetable Research (IIVR), Varanasi during 2015, using principle component analysis, correlation analysis and stepwise regression analysis approaches to assess the genetic diversity present in 160 pea genotypes for the identification of diverse parents for use in crop improvement. Result: Based on the phenotypic data, three superior genotypes VRPD-2, VRPR-15 and VRP-292 were identified on the basis of pod yield, number of pods per plant, ten pod weight, pod length and number of seeds per pod whereas three other genotypes VRPE-45-1, VRPE-55 and VRPE-36 were found early flowering. Principle Component Analysis revealed that first four principle components contributed to 85% of the total variation so these four were given due importance for further explanation. Stepwise multiple regression analysis revealed that number of pods per plant, ten pod weight and number of internode for first pod were the best predictors of pod yield per plant.
Genetic variability studies in field pea (Pisum sativum L.) for yield and associated characters
Environment Conservation Journal
The prime and foremost objective of the study was to estimate the genetic variability for yield and its associated characteristics among the 23 genotypes of field pea and also to engender information regarding genetic parameters like range, mean, phenotypic coefficient of variation (PCV), genotypic coefficient of variation (GCV), heritability and genetic advance as a percentage over means for the18 traits under consideration. It was disclosed from the results of the analysis of variance that there exists a difference among the 23 genotypes for all the 18 traits under consideration. The trait including primary branches per plant, secondary branches per plant, plant height, swelling capacity, swelling index, biological yield per plant, and seed yield recorded high amounts of GCV and PCV. High heritability combined with high genetic advance was documented for the trait’s plant height and seeds per plant, whereas high heritability coupled with low genetic advance, was recorded for the t...
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).