Evaluation of diallel progenies for yield and its contributing traits in tomato under mid-hill conditions.

摘要

A total of 30 diverse tomato lines were evaluated and, out of these, 10 were selected, which were then crossed in a diallel fashion. The 45 F1's along with 10 parents were evaluated for horticultural traits and compared to the standard hybrid Naveen in Himachal Pradesh, India, from 2002 to 2004. Based on the per se performance and heterosis over the better parent, the cross FT-5 x UHF-659 gave the highest positive heterobeltiosis over the better parents. The cross AI-9 x UHF-612 was identified as an early yielding cross. The heterobeltiotic effect for number of fruits per cluster ranged from -34.39 (EC-15998 x FT-5) to 33.0% (FT-5 x UHF-612). AI-9 yielded significantly higher than all other parents. The fruit yield among the crosses varied from 764.33 (EC-174023 x UHF-663) to 1808.23 g (Al 9 x Solan Vajr). The results suggested a high degree of variation and heterosis in positive direction among the crosses. Hence, these crosses exhibited commercial potential to replace the control after further testing.