Performance, genetic variability and heritability of sesame (Sesamum indicum L.) seed yield and its components in central Sudan

Badr Eldin K. Eltayeb, Khalafalla A. Ali, Abu Elhassan S. Ibrahim

Abstract


Success in any breeding programme depends on the magnitude of genetic variability and heritability present in a plant population. Fifteen genotypes of sesame (Sesamum indicum L.) were evaluated during 2012 and 2013 rainy seasons, at Wad Medani, Rahad (under supplementary irrigation) and Gedarif (under rainfed), to assess performance, genetic variability and heritability of seed yield and its components. A randomized complete block design with four replicates was used in each location. The analysis of variance procedure revealed highly significant differences among the 15 sesame genotypes for seed yield in each of the eight individual environments and across them. Combined under supplementary irrigation (Medani and Rahad), the highest yielding genotypes (649–861 kg/ha) were Um Shagara, Kenana-2, Promo, Abu Sofa, Elgezouli and Abu Radoum. They were of medium height and maturity. Characters like capsule length and 1000-seed weight showed high genotypic coefficient of variation and phenotypic coefficient of variation accompanied with high heritability and genetic advance as percent of mean. These characters could be used as selection criteria for high seed yield. Based on mean performance, genotypes Elgezouli, Um Shagara, Kenana-2 and Promo were the highest seed yielders in the four locations.


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