Variability of yield and some morphological traits in sixteen sesame genotypes
Abstract: The study was carried out during 2013 and 2014 growing seasons in order to determine the genetic behavior of sixteen sesame genotypes grown in East Ewinat Research Station Farm (as a new sandy soil), New Valley, Egypt. Results elucidated that the studied genotypes differed significantly for all characters, except number of branches/plant across seasons. Genotype x season interaction was insignificant for all studied traits, except for flowering date, No. of branches/plant, 1000- seed weight, seed yield /plant and seed yield /fed. Genotypes No.F1013 and F1004 followed by Shandweel 3, and Giza 32 showed the highest number of capsules per plant, 1000-seed weight, seed yield/plant, seed yield/fed and oil yield (kg/fed). The highest estimates of broad sense heritability (hb2) and high genotypic coefficients of variation (GCV) coupled with high genetic advance (GS%) were obtained for number of capsules per plant, weight of 1000 seeds and seed yield per plant, which suggests the predominance of additive gene effects and selection would be useful for the improvement of these traits. Significant positive correlations were detected between seed yield and each of number of capsules per plant and the weight of 1000-seed. Oil yield showed highly significant and positive correlation with number of capsules per plant, 1000-seed weight, oil content % and seed yield per plant. Therefore, breeding for higher 1000-seed weight and number of capsules per plant leads to a high seed yield per plant; the corollary is true that breeding for higher seed yield is a useful approach to higher oil yield. These findings indicate that selection for each or both number of capsules per plant and the weight of 1000-seed would be accompanied by high yielding ability. The cluster I (Shandweel 3, F1004, F1013 and Giza 32) which concluded that Shandweel 3 and Giza32 (local genotypes) was considered as cluster with highest yield. Meanwhile, F1004 and F1013 genotypes surpassed the seed and oil yield of Shandweel 3 and Giza32. Then, these selected superior genotypes will be useful in breeding program to improve sesame commercially important characters as seed and oil yield.
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Publication year 2015
Pages 1031 –1045
Organization Name
Author(s) from ARC
Publication Type Journal
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