Heterosis and Inbreeding Depression Studies for Fibre Quality Traits in Upland Cotton (Gossypium hirsutum L.)
Ashita Patel, K. N. Chaudhari, G. O. Fladu, Sanyam Patel, J. S. Mahla, M. R. Prajapati, G. M. Patel, Harshita R. Patel, D. P. Patel
Journal of Advances in Biology & Biotechnology · pp. 477–484 · Published 31 Aug 2024
10.9734/jabb/2024/v27i91319Abstract
Cotton hybrids have its own advantage than varieties in yield and fibre properties. Heterosis breeding helps in identifying F1 hybrids and in creating variability. The chief intention of any hybridization programme is to combine all the desirable genes present in two or more parents into a single genetic background. This investigation helped in identifying the extent of heterosis in crosses among four families in upland cotton (Gossypium hirsutum L.) which was conducted at college Farm during kharif 2021-23. The all 4 hybrids were derived by generation mean analysis study which were analysed for fibre quality traits in a Compact Family Block Design. For traits like Ginning percentage, uniformity index, Upper Half Mean Length, Lint index, and Fibre strength, most of the crosses showed positive and significant relative heterosis. While, heterobeltiosis was also found positive and significant for ginning percentage, uniformity index, Upper half mean length and fibre strength for most of the crosses under study. Most of the crosses under study also showed little inbreeding depression for traits like ginning percentage, uniformity index and fibre strength. Thus, by exploiting the benefits of heterosis while mitigating risks associated with inbreeding depression may lead to the development of superior hybrid varieties with consistently improved fibre quality.
References (5)
- 1 Distribution, Collection, and Evaluation of Gossypium [DOI]
- 2 Composition of a Field of Maize [DOI]
- 3 Diallel analysis and inbreeding depression in agronomic and technological traits of cotton genotypes [DOI]
- 4 Heterosis and inbreeding depression estimates for yield and fibre components in upland cotton (Gossypium hirsutum L.).
- 5 GENETIC STUDIES ON YIELD, YIELD COMPONENTS AND FIBER PROPERTIES IN SEGREGATING GENERATIONS OF AN INTRASPECIFIC COTTON CROSS [DOI]
Cited by 1
J. D. Patel, N. Dubey, I. Delvadiya · Journal of Applied and Natural Science · 2025
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