Genetic effects and potential parents in cowpea

Dias, Francisco Tiago Cunha; Bertini, Cândida Hermínia Campos de Magalhães; Filho, F. R. Freire

doi:10.1590/1984-70332016v16n4a47

Cited by 12 publications

(16 citation statements)

References 13 publications

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“…Significant gca indicates that at least one of the parental genotypes differ from others in relation to number of favourable genes with additive effects whereas, significant sca indicates that all the hybrids have higher or lower performance than expected, based on gca (Oliboni et al 2013). Similar results were recorded by Badhe et al (2016), Dias et al (2016) in cowpea and Dharmendra et al (2002) in pea for gca and sca for all the traits. The ratio of gca and sca variances was less than unity for all the traits except harvest index suggesting the influence of non-additive gene action in inheritance of all the traits.…”

Section: Resultssupporting

confidence: 73%

Combining Ability and Gene Action Analysis for Seed Yield and Component Traits in F2 Generation of Vigna mungo L. Hepper by using Griffing Approach

Singh

Mittal

Sood

et al. 2020

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Background: Urdbean (2n=2x=22), also known as blackgram is an important short duration legume crop belonging to family Fabaceae, widely cultivated in Asia. Urdbean occupies an important position among pulses owing to its high seed protein (25-26%), carbohydrates (60%), fat (15%), minerals, amino acids and vitamins. Owing to its low water requirement, it is also suitable for rainfed conditions. It adapts well to various cropping systems owing to its ability to fix atmospheric nitrogen in symbiosis with soil bacteria, rapid growth and early maturity. Half diallel analysis was adopted in present study to gather information on gca (general combining abilities) and sca (specific combining abilities) of 6 diverse parents and simultaneously estimating various types of gene effects involved in the expression of seed yield and related attributes in urdbean. Methods: The F1’s were developed during 2017 in 9 x 9 half diallel fashion by Sharma et al. 2019 and these F1’s were evaluated. Significant crosses on the basis of gene action and combining ability were selected for further advancement. The experimental material comprised of the six parents and 15 F2’s of a 6 x 6 half diallel cross among six cultivars of urdbean (four are purelines viz., Palampur-93, HPBU-111, DU-1 and KU-553 and rest of the two are advanced and indigenous lines viz., Him Mash-1 and IC-281994). The F2’s along with the parental genotypes were grown in a Randomized block Design (RBD) with three replications at Experimental Farm of the Department of Crop Improvement, COA, CSK HPKV Palampur (H.P.) during Kharif, 2018. Results: The cross combination, Him Mash-1× HPBU-111, was identified the best for high seed yield on the basis of sca. The specific crosses, Palampur-93 × IC-281994, Palampur-93 × KU-553 were good specific combiners for most of the traits viz., plant height, branches per plant, pods per plant, biological yield per plant, seed yield per plant, harvest index, 100-seed weight and crude protein content.

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Section: Resultssupporting

confidence: 73%

Combining Ability and Gene Action Analysis for Seed Yield and Component Traits in F2 Generation of Vigna mungo L. Hepper by using Griffing Approach

Singh

Mittal

Sood

et al. 2020

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“…The role of both additive and non-additive gene action in the inheritance of yield and its components traits have also been reported by many other workers in blackgram (Singh and Singh, 2005;Karthikeyan, et al 2007;Bhagirath, et al 2009;Chakraborty, et al 2010;Panigrahi, et al 2015;Vadivel, et al 2019), greengram (Singh, et al 2007;Patil, et al 2011;Thangavel and Thirugnanakumar, 2011;Singh et al, 2016) and cowpea (Egbadzor et al, 2013;Dias et al, 2016). The substantial presence of non-allelic interactions has also been reported by Gupta (2005), Khan et al (2004), Chand (2000, Adeyanju et al (2012), Ramakant and Srivastava (2012) and Bindra et al (2017) in backgram; Thangavel and Thirugnanakumar (2011) and Singh et al (2016) in mungbean; and Tchiagam et al (2011) in cowpea.…”

Section: Resultsmentioning

confidence: 52%

Genetic Component and Vr-Wr Graphical Analysis in Blackgram [Vigna mungo (L.) Hepper]

Sharma¹,

Mittal²,

Sood³

2021

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Background: To develop a new high yielding variety, it is important to generate utilitarian recombinants and devise an appropriate strategy for selection and advancement of those recombinants. Method: Keeping this in mind, genetic components of yield and its related traits were determined in nine genotypes of blackgram through half diallel analysis using Hayman’s numerical and graphical approach. Conclusion: The estimates of genetic components deduced the role of non-additive gene action in the inheritance of all traits. The Vr-Wr graphical analysis revealed that assumptions laid by Hayman for diallel analysis were seldom fulfilled. Epistatic effect was predominant in all traits except days to 75 per cent maturity. Unidirectional dominance was observed in days to 75 per cent maturity, pods per plants and seed yield per plant and crude protein content. One major gene group was found controlling all traits except days to 75 per cent maturity and branches per plant. These findings can be used by breeders to devise appropriate selection methodology for yield improvement in blackgram.

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“…Comparatively the values of heterosis for pods per cluster were less (0.14 to 31.1 per cent, -27.4 to 18.4 per cent and -9.1 to 47.1 per cent respectively) indicating that the number of pods per plant was not dependent on the number of pods per cluster. The percentage of crosses with significant heterosis for pods per plant (52 per cent and 44 per cent) over mid and better parent indicated the equal involvement of additive and non-additive gene action for this trait (Dias et al, 2016). The magnitude of heterosis for pod yield per plant ranged from 4.1 to 112.3 per cent, -27.3 to 74.1 per cent and 11.8 to 109.5 per cent over mid, better and standard check respectively (Patil et al, 2014).…”

Section: Resultsmentioning

confidence: 96%

Gene Action Studies in Cowpea Inbreds and Hybrids with Varying Levels of Heterosis

Lovely¹,

Kumar²

2021

IJARe

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Background: Cowpea is an important pulse crop grown worldwide that fits well in a variety of cropping systems. Improvement in yield and related characters along with reduced duration are desirable traits in this crop. The study of heterosis reveals the type of gene action involved which enables the plant breeder to adopt suitable breeding methodology for its improvement. Methods: The present investigation was carried out with 10 parent partial diallel design to analyse the gene action and estimate of heterosis with respect to nine yield related traits in cowpea.Result: Highly significant variances observed for all the traits indicated that hybrids and parents were different from each other for the traits under study and that variability in the breeding materials was attributed to additive and non-additive gene effects. Perusal of the data revealed significant positive heterosis for all yield related traits and significant negative heterosis for days to 50% flowering indicating earliness. Among the twenty five crosses studied, VS9 x VS43, VS24 x VS45 and VS44 x VS47 had significant heterosis for maximum number of characters. Both gca and sca variances were significant for all the characters indicating both additive and non-additive gene actions controlling the various traits. The additive variance was much higher than dominance variance for the characters days to 50% flowering, pod length, pod breadth, pod weight, pods per plant and cluster, pod yield per plant, seeds per plant and length of harvest period suggesting the preponderance of additive gene action.

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Genetic effects and potential parents in cowpea

Cited by 12 publications

References 13 publications

Combining Ability and Gene Action Analysis for Seed Yield and Component Traits in F2 Generation of Vigna mungo L. Hepper by using Griffing Approach

Combining Ability and Gene Action Analysis for Seed Yield and Component Traits in F2 Generation of Vigna mungo L. Hepper by using Griffing Approach

Genetic Component and Vr-Wr Graphical Analysis in Blackgram [Vigna mungo (L.) Hepper]

Gene Action Studies in Cowpea Inbreds and Hybrids with Varying Levels of Heterosis

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