Exploitation of heterosis for yield and its contributing traits in brinjal (Solanum melongena L.)

Abstract

;'The present investigation was carried out to study genetic parameters for fifteen yield and its contributing characters in 64 (48 F1s, 12 lines and 4 testers) entries with two check varieties during Kharif 2017-18 (Y1) to 2018-19 (Y2). In Y1 heterosis over mid parent for total fruit yield per plant ranged from -55.50 to 98.18 percent and standard heterosis from -55.22 to 94.04 percent. In Y2, heterosis over mid parent for total fruit yield per plant ranged from -55.05 to 99.20 percent and standard heterosis from -58.64 to 79.09 percent. In the case of pooled analysis, heterosis over mid parent for total fruit yield per plant ranged from -55.78 to 98.65 percent and standard heterosis from -56.87 to -85.78 percent. In Y1 Out of 48 crosses, twenty-eight and twenty-two of the F1’s showed significant and positive heterosis over mid parent and standard heterosis for total fruit yield per plant respectively. InY2 out of 48 crosses, twenty-nine and eighteen of the F1’s showed significant and positive heterosis over mid parent and standard heterosis for total fruit yield per plant respectively. In pooled analysis out of 48 crosses, twenty-eight and twenty- one of the F1’s showed significant and positive heterosis over mid parent and standard heterosis for total fruit yield per plant respectively.