Division of Genetics, I.A.R.I., Delhi-12
Variations in specific sedimentation value were studied in single plant populations of the P1, P2, F1, F2, P1 F1, and P2 F1 generations and rows of the F3, F4, and F5 families. The F1 population showed partial dominance for high specific sedimentation value while the segregation in the F2 indicated a multigenic control for this character. Narrow sense heritability was 50 percent Correlations between lines in the F3, F4, and F5 generations were extremely high, indicating that selection in early generations for high specific sedimentation value would be effective.