Combining ability in bittergourd

摘要

Combining ability was estimated with six lines and four testers in bitter gourd for seventeen traits. Gy-l (L_6) was found good general combiner for number of fruits per vine, number of fruit per plot, internodal length, days to first appearance of male flower and vine length. For yield per vine, yield per plot, yield/ha, fruit width and days to first appearance of female flower, MC-84 (L_1 was best general combiner. S-17 (L_2) for fruit length, fruit weight and JMC-21 (L_3) for number of nodes, first effective node, number of primary branches per vine were best general combiners. The crosses MC-84 x JMC-22 (L_1 x T_2) for yield per plot, yield (q/ha) and MC-84 x VRBT-6-9 (L_1 x T_1 for yield per plot, yield per vine, fruit width, days to first appearance of female flower, number of primary branches per vine exhibited significant specific combining ability ( sca).