بررسی ترکیب پذیری و اثرات ژنی در ارقام و لاینهای کنجد

Progress in breeding depends on information aboutgenetic control of traits, combining ability and genetic structure of the populations. In this investigation, which was carried out in Seed and Plant Improvement Institute, 42 hybrids derivied by crossing of seven sesame lines including Ultan, darab-1, Caramin 2822, Dashtestan-2, Karaj-1, Pal, TLHE in a full diallel arranmeent, were evaluated. The analysis conducted based on Griffing model 1 and mixed model B. Analysis of variance indicated peresence of siginifcant differences between the parents and the hybrids for all considered traits. Also the GCA effects were significant for all investigated traits. SCA effects were significant for all traits escept for seed oil percentage. The component of additive effects on number of capsule per plant, height of the first capsule, and seed oil content was highly significant. So, selection procedure for the traits can be applied for sesame bereeding. Non-additive effects were prominanet for main stem length, fertile main stel length, number of seeds per capsule, seed weight, seed yield on the main stem, and seed oil contemt. It means that selection for the traits can not make any progress in the breeding program. As a result, results gained in this research can b eused in designing the maprout of sesame breeding.