PJB-1969-5
GENETIC STUDIES ON YIELD AND YIELD COMPONENTS OF BRAS SICA CAMPESTRIS L.
O. I. JOARDER AND A. M. EUNUS
Abstract
Inheritance of yield and its associated characters were studied in two varietal crosses involving three varieties of Brassica campestris L. Heritahility estimates ranged from 81 per cent for seed yield per plant in cross-1 to 19 per
cent for 10-fruit weight in cross-2.
Transgressive segregation in both directions was observed in seed yield per plant and fruit length in cross-2 and in seed weight per 10 -fruit and number of fruits per plant in cross-1. Over- dominance was observed in 10-fruit weight and 100-seed weight in both the crosses and number of seeds per fruit and number of fruits per plant respectively in cross-1 and cross-2. The estimates of dominance (hj) gene
effects were mostly larger than the additive (d) gene effects and were significant in almost all the characters. Epistasis was detected by chi-square
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