Vol. 10, Issue 1 (2021)

Author(s):
GM Malve, VS Jagtap and PA Kate

Abstract:
Heterosis study was under taken in 21 F₁ hybrids of bitter gourd obtained from half diallel by using seven parental lines for fruit yield and its contributing characters during summer season. The complete sets of 28 genotypes were evaluated in a randomized block design (RBD) with two replications during summer season. For Twelve different characters the magnitude of heterosis noted in percentage increase or decrease over better parent and standard check. The cross combinations P₁ x P₂ (Phule Green Gold x Preethi), P₂ X P₅ (Preethi x DVBTG-7), P₁x P₃ (Phule Green Gold x Arka harit) and P₆ x P₇ (Hirkani x Konkan Tara) displayed the significant positive heterosis for most of the traits in summer season. As earliness is a desirable character in bitter gourd, the significantly negative heterosis is considered desirable for all maturity traits viz., inter nodal length, days to 50% flowering and days required for first harvest.