Six generations, viz., P1, P2, F1, F2, BC1 and BC2 of crosses SPY 346 x SPY 351, 2219 B x CS 3541 and Vidisha 60-1 x CS 3541 were grown at Indore. Significant differences were observed among the generation means for root CEC. Estimates of six components of generation means, viz., m, d, h, i, j and l were obtained for grain yield, 1000-grain weight, and root CEC. Additive gene effects alone were important for root CEC of the cross Vidisha 60-1 x CS 3541. On the other hand, nonadditive gene effects were predominant for root CEC in the remaining two crosses. Only additive gene effects governed the inheritance of grain yield in the cross Spy 346 x SPY 351. However, for the cross 2219 B x CS 3541, the estimate of h was many times higher than for other components. For 1000-grain weight, predominant gene effects were nonadditive.
Root CEC, gene effects, sorghum
