Genetic Variability, Correlation and Path Coefficient Analysis for Yield and Its Attributing Traits in Cowpea [Vigna unguiculata (L.) Walp] Accessions

Chaudhary, A. R.; Solanki, Shyam; Rahevar, Parthsinh; Patel, D. A.

doi:10.20546/ijcmas.2020.902.151

Cited by 4 publications

(8 citation statements)

References 9 publications

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“…Moderate heritability coupled with high genetic advance was observed in the number of branches per plant and harvest index. Similar results were reported by Dinakar et al, (2018), Thouseem et al, (2018) and Chaudhary et al, (2020). Similarly moderate heritability coupled with low genetic advance was observed in protein content.…”

Section: Resultssupporting

confidence: 88%

“…Moderate GCV and PCV for days to 50 per cent flowering, number of branches per plant, pod length, seeds per pod and days to maturity whereas low for protein content. These results are in agreement with Thouseem et al, (2018) and Chaudhary et al, (2020). But the difference between PCV and GCV was narrow for days to days to 50 per cent flowering, plant height and days to maturity indicated that influence of environment on the expression of traits was little or negligible, hence selection would be effective for all these traits.…”

Section: Resultssupporting

confidence: 87%

“…This might be attributed to the fact that the parental genotypes might have possessed both additive and /or non additive genes for these traits in different magnitudes and as a result of more pronounced expression of non additive genes moderate heritability with low genetic advance was noticed. The findings were also collaborated with findings of Chaudhary et al, (2020).…”

Section: Resultssupporting

confidence: 66%

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Genetic Variability, Correlation and Path Analysis in Cowpea [Vigna unguiculata (L.) Walp]

Gupta

Intwala

Ganesh

2022

IJARe

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Background: Cowpea [Vigna unguiculata (L.) Walp] is a self pollinated crop, belonging to family fabaceae and sub family papilionaceae. It is an important multipurpose grain legume extensively cultivated in arid and semi arid regions of Sub-Saharan Africa, Asia, Central and South America. The assessment of variability present in any crop species is an essential pre requisite for formulating an effective breeding programme, as the existing variability can be used to enhance the yield level of cultivars after following appropriate breeding strategies. Methods: The present investigation was carried out during the Kharif season of the year 2019. The field experiment was carried out at Pulses Research Station, NAU, Navsari in randomized block design. The study was undertaken on fifty three genotypes of cowpea to know the variability present among genotypes for thirteen traits and correlation and path analysis of yield components. Result: Analysis of variance indicated significant genotypic differences for all the characters under study. The highest GCV was recorded for plant height, pods per plant, pods per cluster, seed yield per plant, straw yield per plant, 100 seed weight and harvest index. High heritability coupled with high genetic advance was exhibited by days to 50 per cent flowering, days to maturity, plant weight, seed yield per plant, 100 seed weight, pod length, pods per cluster and seeds per pod indicating the presence of additive gene action. Seed yield per plant was found to be positively and significantly correlated with pods per plant, pods per cluster, pod length, days to 50 per cent flowering and straw yield per plant or seed yield per plant. The present study has indicated the need for giving due weightage to pods per plant, pods per cluster, seeds per pod, 100 seed weight, pod length with straw yield per plant for improving seed yield in cowpea.

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Section: Resultssupporting

confidence: 88%

Section: Resultssupporting

confidence: 87%

Section: Resultssupporting

confidence: 66%

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Genetic Variability, Correlation and Path Analysis in Cowpea [Vigna unguiculata (L.) Walp]

Gupta

Intwala

Ganesh

2022

IJARe

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“…According to Srinivas et al (2017), the number of branches on cowpea plants has a positive correlation with yield characters such as weight of 100 seeds (r = 0.722) and average pod weight (r = 0.759). This is supported by Chaudhary et al (2020) that the number of branches per plant has a substantial direct correlation to the yield component (r = 0.6779) and is classified as a moderate heritability character (h2 = 59.28%).…”

Section: Morpho-agronomy Charactermentioning

confidence: 75%

“…According to Acquaah (2012), the estimated heritability values for several plants, pod length, and the number of seeds per pod were 67% (high) and 30% (medium). However, based on the research of Chaudhary et al (2020) on cowpea plants, heritability values in the broad sense for the variables of pod length and the number of seeds per pod had values of 87.26% and 77.53%, respectively, which were classified as high heritability values based on the classification of Nkhoma et al (2020) which classified heritability values into several categories which are low (0-30%), moderate (30-60%), and high (>60%). This shows that the pod length and the number of seeds per pod are largely influenced by the inheritance of the two parent's characters.…”

Section: Discussionmentioning

confidence: 99%

Morpho-agronomy performance, seed nutrition content, and Aphis craccivora resistance of cowpea (Vigna unguiculata) genotypes

et al. 2021

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Abstract. Sas MGA, Wahyu Y, Syukur M, Hidayat P. 2021. Morpho-agronomy performance, seed nutrition content, and Aphis craccivora resistance of cowpea (Vigna unguiculata) genotypes. Biodiversitas 22: 4320-4326. Cowpea (Vigna unguiculata subsp. unguiculata) is an agricultural commodity that can be a source of vegetable protein and replace the need for soy as a food ingredient. The wide adaptability under sub-optimum conditions placed cowpeas as the choice to be developed. This study aimed to evaluate the cowpea genotype’s agronomic performance and resistance to Aphis craccivora to be proposed as superior genotypes. Observations were made on the morpho-agronomic characters, including the color of the young pods and dry seeds, the number of pods, the productivity of fresh pods and dried seeds, and the nutrition content. The resistance to Aphis craccivora was evaluated using a no-choice test whole plant for the resistance and tolerance evaluation. This study showed that the productivity of young pods (4.86-15.13 tons ha-1), dry seed productivity (0.83-2.71 tons ha-1). The protein content differed significantly among the 20 genotypes ranging from 19.24% to 24.45%. Aphid infestation significantly inhibited plant growth compared with non-infested plants. Infestation of Aphis craccivora decreased the dry weight of the plant by about 20% to 70%. Based on the aphid population, the 20 genotypes were classified into medium-high to very high aphid damage intensity.

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GENETIC VARIABILITY AND ASSOCIATION OF TRAITS IN COMMON BEAN (Phaseolus vulgarisL.)GENOTYPES IN SEKOTA, NORTH WESTERN ETHIOPIA

Assefa,

Worku,

Bantayhu

et al. 2024

Preprint

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Common bean (Phaseolus vulgaris L.) is one of the most important pulse crops in Ethiopia, contributing to income generation and food security. Information on the genetic variability and trait associations of common bean in the Sekota district of north Western Ethiopia is inadequate. This study was initiated with the objective to assess variability, heritability and trait association among 64 common bean genotypes for quantitative traits using 8x8 simple lattice design at Aybra main research site 2023 under rain fed conditions. Analysis of variance was performed using SAS software and the ANOVA revealed highly significant variations among genotypes for all the traits considered in the study. The yield ranged from 1633.1 to 3702.10 kg ha-1with a mean of 2542.53 kg ha-1. There was a yield advantage of 24.56 to 55.89% over the checks. A moderate genotypic coefficient of variation coupled with high heritability and high genetic advance as a percentage of the mean was obtained for plant height, branches per plant, hundred seed weight, seed yield, and harvest index. Branches per plant, aboveground biomass and harvest index had significant positive correlations and direct effects on seed yield at the genotypic and phenotypic levels while days to maturity had a significant negative correlation and indirect effect with seed yield at the genotypic. The maximum inter cluster distance was found between clusters VII and 8 (D2=351.39), followed by clusters V and VIII (D2=331.23). The first five principal component axes accounted for 74.3% of the total variation, with eigenvalues greater than unity. The number of days to maturity, plant height, number of pods per plant, number seeds per pod, seed yield, and harvest index were the traits that contributed most of the variation in the first PCs. Generally, the presence of variability, and strong positive association of traits among the genotypes were observed in the traits under study. Therefore, selection based on agronomic performance and hybridization based on cluster distance could be possible for the improvement of common bean in the study area.

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Genetic Variability, Correlation and Path Coefficient Analysis for Yield and Its Attributing Traits in Cowpea [Vigna unguiculata (L.) Walp] Accessions

Cited by 4 publications

References 9 publications

Genetic Variability, Correlation and Path Analysis in Cowpea [Vigna unguiculata (L.) Walp]

Genetic Variability, Correlation and Path Analysis in Cowpea [Vigna unguiculata (L.) Walp]

Morpho-agronomy performance, seed nutrition content, and Aphis craccivora resistance of cowpea (Vigna unguiculata) genotypes

GENETIC VARIABILITY AND ASSOCIATION OF TRAITS IN COMMON BEAN (Phaseolus vulgarisL.)GENOTYPES IN SEKOTA, NORTH WESTERN ETHIOPIA

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