Genetic component analysis in upland cotton
1992
Tariq, M. | Khan, M.A. (Oilseeds Research Station, Rawalpindi (Pakistan)) | Sadaqat, H.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Plant Breeding and Genetics) | Jamil, T. (National Seed Registration Dept., Rawalpindi (Pakistan))
In a six parent diallel cross of upland cotton (G. hirsutum L.) studied during 1987, over-dominance was significant for boll weight, seed cotton yield and lint percentage in Fl-generation. Additive gene effects were important for seed index, lint index and staple length. Dominance was observed for number of bolls per plant. Dominant genes were in excess for seed index, lint index and staple length. While all other traits were governed by excess of recessive genes. Heritability in narrow sense was high for seed and lint indices, and low for seed cotton yield per plant, boll weight and lint percentage. Rapid genetic advance could be brought through simple selection in the traits shown in additives genetic variance. Heterosis could be exploited for other traits.
显示更多 [+] 显示较少 [-]