Division of Genetics, Tamil Nadu Agricultural University, Coimbatore-641 003, India
1Present address: All India Co-ordinated Sugarbeet Research Project, K.P.A.E. Farm, Shalimar 191 121, Kashmir, India.
2Present address: Directorate of Millets Development, Government of India, 4-Krishnamachari Road, Madras 600 034, India.
*Part of a thesis submitted by the first author for Ph.D. degree of the Tamil Nadu Agricultural University, Coimbatore.
Diallel crosses among 10 soybean varieties from different ecogeographic regions were studied in F1 generation. Both general and specific combining ability variances were significant. The higher magnitude of GCA variance indicated the importance of additive and additive × additive components of genetic variance in the inheritance of these characters. Parental performance as judged by GCA effects has indicated that ‘EC 27500’, ‘Hernon-49’ and ‘EC 7034’ were best general combiners for a majority of traits.
