Phenotypic and Genotypic Variability in a Set of Sesame ( Sesamum indicum  L.) Genotypes

Bedawy, Ismail M.; Mohamed, Naheif E.

doi:10.21608/agro.2018.4719.1108

Phenotypic and Genotypic Variability in a Set of Sesame ( Sesamum indicum L.) Genotypes

Document Type : Original Article

Authors

Agronomy Department, Faculty of Agriculture, Sohag University, Egypt, Sohag, Egypt

10.21608/agro.2018.4719.1108

Abstract

TOTALLY, 86 sesame (Sesamum indicum L.) genotypes were used for the study of phenotypic and genotypic variability in summer seasons of 2015 and 2016. They were differed significantly values for all studied traits in both seasons. The genotypes mean ranged widely around the general mean in the studied traits. 67.4, 40.7, 46.5 and 48.8% of the genotypes were raised than the average for plant height (159.05cm), capsule length (2.56cm), thousand seed weight (3.65g) and seed yield per plant (14.38g). While 51.2% of genotypes were higher than the average of first capsule height, length of fruiting zone and capsules number per plant in the first season. The higher phenotypic values than overall mean observed as 53.5, 51.2, 52.3, 54.7, 40.7, 48.8 and 48.8% for the plant height, the first capsule height, the fruiting zone length, the capsule number per plant, the capsule length, the thousand seed weight and the seed yield per plant in the second year, respectively. Also, high values (>20%) of phenotypic coefficient variations (PCV) and genotypic coefficients of variations (GCV) were recorded in the first capsule height in both seasons. However, moderate values of genetic advance (GA) were observed for the plant height (18.49) in both seasons and (17.52 & 16.94) for the fruiting zone length in the first and second seasons coupled with high heritability. Higher heritability coupled with high genetic advance estimates (>20) were recorded for the first capsule height (26.05 and 25.85) and the capsules number per plant (22.55 and 26.11) in both seasons. This is indicates that these traits controlled by additive gene action and mostly which is very useful for selection efficiency.

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