Department of Plant Breeding, G. B. Pant University of Agriculture and Technology, Pantnagar, Nainital, 263145, India
1Present Address: CIMMYT, Mexico.
*Part of Ph.D. thesis submitted to G. B. Pant University of Agriculture and Technology, Pantnagar. Part II of Inheritance of stalk-rot resistance in maize. Part I appeared in the Indian J. Genet., 39 (1979).
Analysis for combining ability for resistance to Cephalosporium stalk rot was done in F1 and F2 diallels involving 5 resistant and 5 susceptible lines. GCA as well as SGA variances, with the magnitude of the former being considerably higher, were important for disease reaction in both the generations. Resistance was partially dominant over susceptibility and primarily conditioned by dominant alleles. Suitability of biparental full-sib family selection is discussed.
