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Vol. 10, Issue 7 (2021)

Heterosis and inbreeding depression in okra (Abelmoschus esculentus (L.) Moench)

Author(s):
Kumar Arvind, Gaurav SS and Tanu Shiri
Abstract:
Three generations i.e. Parents, F1, and F2, of twenty one crosses (Progeny) were used to estimate heterosis and inbreeding depression for growth, yield and yield contributing traits in okra. In general, twenty one crosses showed a wide range of heterotic effects for yield and yields related characters showing the importance of both additive and non-additive genes. VRO-6 × Pusa Sawni showed significant heterobeltiosis for almost all the no of fruit yield / Plant and its contributing traits particularly, VRO-3 x Arka Anamika for seed yield / plant (g) and no of seed / fruit. High heterotic cross combinations for different characters showed high inbreeding depression in the F2 generation ranged from 50% flowering (- 9.72) to no of fruit / plant (-12.03) in cross VRO-3 x Arka Anamika, This may be due to most part of heterobeltiosis accounted for dominance and dominance × dominance type of epistatic interactions and less for additive × dominance type of gene effect. These findings useful for the improvement of no of fruit / plant and its seed yield / plant while handling the segregating generation for the development of improved varieties in okra.
Pages: 793-798  |  327 Views  132 Downloads


The Pharma Innovation Journal
How to cite this article:
Kumar Arvind, Gaurav SS, Tanu Shiri. Heterosis and inbreeding depression in okra (Abelmoschus esculentus (L.) Moench). Pharma Innovation 2021;10(7):793-798.

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