LINE x TESTER ANALYSIS IN SESAME | ||
| Egyptian Journal of Plant Breeding | ||
| Volume 20, Issue 5, September and October 2016, Pages 695-704 PDF (433.81 K) | ||
| Document Type: Original research | ||
| DOI: 10.12816/ejpb.2016.360998 | ||
| Abstract | ||
| The aim of this investigation was to study combining ability and heterotic effects for seed yield and its components through line x tester mating design. Six lines and three testers were crossed to produce eighteen crosses. The magnitude of SCA was greater than GCA for most studied traits, indicating the importance of non-additive gene effect. Among lines, Shandaweel-3 genotype recorded desirable GCA effects for plant height, length of fruiting zone, seed weight plant-1, 1000-seed weight and seed yield fed-1. Among testers, Shandaweel-8 genotype was the best general combiner for plant height, length of fruiting zone and number of branches plant-1. However, line 141-1 proved to be a good combiner for seed weight plant-1, 1000-seed weight and seed yield fed-1. Hence, these genotypes could be utilized as doner parents in hybridization programs for transferring desirable traits. Two crosses (L1 x T2 and L5 x T3) showed the best SCA efects for plant height, length of fruiting zone, seed yield plant-1, 1000-seed weight and seed yield fed-1. | ||
| Keywords | ||
| Sesamum; GCA; SCA; Heterotic effect | ||
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