Vol. 12, Issue 11 (2023)

Author(s):
Sanjay T Rathod, VK Gite, SP Pole and SB Bogaokar

Abstract:
An experiment was laid out on diallel analysis to study the extent of heterosis in sesame over the environments in Marathwada region of Maharashtra (India) for seed yield and component traits. The analysis of variance showed highly significant differences among genotypes. The interaction between parents vs hybrids recorded highly significant differences for all the traits except 1000 seed weight and oil content in all the four environments and days to 50 percent flowering in E₃, E₄, days to maturity in E₁, E₄, plant height in E₂, number of branches in E₁, E₂ and length of capsule in E₁, E₂ and E₃ indicating heterosis could be exploited for improvement of these traits. The best and three top ranking crosses were identified in each environment viz., TBS-105 x R-09, TBS-105 x V-29 and TBS-7 x V-29 in E₁, R-09 x V-29, TBS-7 x V-29 and TBS-105 x V-29 in E₂, TBS-10 x V-29, TBS-105 x V-29 and TBS-7 x TBS-12 in E₃ and TBS-10 x V-29, TBS-7 x TBS-12 and TBS-105 x V-29 in E₄ having high per se performance along with significant mid parent, better parent and standard heterosis for seed yield per plant. The significant desired standard heterosis was ranged from 20.69 to 152.66 percent over the check AKT-101 and heterobeltiosis from 15.78 to 148.42 percent for seed yield per plant.