Effect of Flowering Regime and Flower Age on Self Incompatibility Response in S-Allele Lines of Cabbage (Brassica oleracea Var. capitata L.)

Abstract

Five S-allele lines of cabbage viz., I-4-3, I-4-6, II-12-4-9, III-1-2 and SC-5-5-4 were studied for their self incompatibility response. This was ascertained through self-pollinations carried out in opened flowers of different ages (0, 1, 2 and 3 days old) in three flowering regimes (25-50%, 50-75% and < 75% flowering). The results were interpreted on the basis of seed-set data obtained. The S-allele lines I-4-3, I-4-6, II-12-4-9 and III-1-2 showed stability of self incompatibility across flowering regimes and flower ages and thus have a good potential to be used as parents in the hybrid development programme.