Comparative Seed Yield Stability of Determinate and Indeterminate RILs of Dolichos Bean (Lablab purpureus L. Sweet) var. lignosus

Kant, Chandra; Kumar, H.R. Uday; Ramesh, S.; Keerthi, C. M.; Rao, A. Mohan; Byregowda, M.; resh, Su

doi:10.20546/ijcmas.2018.701.391

Int.J.Curr.Microbiol.App.Sci

2018

DOI: 10.20546/ijcmas.2018.701.391

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Comparative Seed Yield Stability of Determinate and Indeterminate RILs of Dolichos Bean (Lablab purpureus L. Sweet) var. lignosus

Chandra Kant¹,

H.R. Uday Kumar²,

S. Ramesh³

et al.

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2023

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Effect of growth habit on grain yield and its component traits in horse gram [Macrotyloma uniflorum (Lam.) Verdc.]

Chandana,

Ramesh,

Kirankumar

et al. 2023

Plant Genet. Resour.

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In common with other grain legumes, the growth habit in horse gram is one of the domestication-driven adaptive traits. Horse gram exhibits determinate and indeterminate types of growth habits. Determinate genotypes have non-overlapping vegetative and reproductive phases combined with a compact growth habit which enables farmers to produce horse gram in intercropping and multiple cropping systems, a common practice for sustainable agriculture production. Also, synchronous flowering, and pod development and maturity of determinate genotypes enable mechanical harvesting. Empirical studies have indicated a greater grain yield potential of indeterminate compared to determinate genotypes. However, we hypothesize that indeterminate and determinate genotypes do not differ for their grain yield potential if they are in isogenic genetic backgrounds. To test this hypothesis, we compared eight pairs of near isogenic (NI) indeterminate and determinate genotypes for their grain yield potential during two rainy seasons in one location and one rainy season in another location. The eight pairs of NI determinate and indeterminate genotypes differed significantly in each of the three test environments. Indeterminate genotypes produced a greater pod (harvestable) and grain (marketable) yields than their determinate counterparts only in a few genetic backgrounds. These results thus support our hypothesis that determinate genotypes are comparable to indeterminate ones, if not better than the latter.

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Effect of growth habit on grain yield and its component traits in horse gram [Macrotyloma uniflorum (Lam.) Verdc.]

Chandana,

Ramesh,

Kirankumar

et al. 2023

Plant Genet. Resour.

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Comparative Seed Yield Stability of Determinate and Indeterminate RILs of Dolichos Bean (Lablab purpureus L. Sweet) var. lignosus

Cited by 1 publication

References 11 publications

Effect of growth habit on grain yield and its component traits in horse gram [Macrotyloma uniflorum (Lam.) Verdc.]

Effect of growth habit on grain yield and its component traits in horse gram [Macrotyloma uniflorum (Lam.) Verdc.]

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