Vol. 7, Issue 8 (2018)

Author(s):
P Dasgupta, JP Lal and H Kumar

Abstract:
Finding means to improve productivity of sesame crop is crucial to harness the nutritional and medicinal properties of the crop. It can be best done with genetic improvement of the crop. Seven lines and two testers were evaluated using generation mean analysis to know the nature of gene actions and identify epistasis for yield and its components in sesame. Results showed that two crosses namely, ES-3 x TC-289 and GT-1 x JLT-8 exhibited both additive (d) and additive x additive (i) interactions for seed yield. Characters like plant height, length of capsule, number of seeds per capsule and seed weight also showed d and i effects coupled with heterobeltiosis. F₂ generation of these two crosses showed high seed yield, length of capsule, number of seeds per capsule and seed weight. It was concluded that ES-3 x TC-289 and GT-1 x JLT-8 can be exploited for isolation of promising recombinant lines having higher seed yield.