Fiber- to-Seed Attachment Force in Upland Cotton (Gossypium hirsutum L.). II. Inheritance

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Date
1995
Authors
Abdalla, A.H.
Abdelrahman, S.H.
Journal Title
Journal ISSN
Volume Title
Publisher
Faculty of Agriculture, University of Khartoum, Shambat, Sudan
Abstract
Inheritance of fibre-to-seed attachment force was studied in two crosses (ShambatB x ShambatX and ShambatBx P37/82) of upland cotton. Each cross included the parents (P1, P2) F1, BC1, BC2 and F2 generations. Genetic effects were determined by the three-parameter additive-dominance model. The results, obtained over two seasons (1990/91 and 1991/92), indicated that this trait is quantitatively inherited. Both additive and dominance genetic effects were involved in the expression of fibre-to-seed attachment, with the additive effects being more important. Partial dominance was the type of dominance present, and no epistatic gene action was detected. Since additive genetic effects were of great importance, improving fibre-to-seed attachment force through selection seems possible.
Description
Pages: 3 (2), 12- 21, 8 Ref
Keywords
Genetic effects, Partial dominance, Shambat and additive-dominance .
Citation