Última alteração: 2025-07-11
Resumo
Assessment of genetic diversity in Sesame [ Sesamum indicum (L.)] germplasm for yield and related traits
W. Muteti 1 , R. Chiulele 2 , A. Ndeve 3
1, 2, 3 Faculty of Agronomy and Forestry Engineering,
1, 2,3 Department of Crop Production, Eduardo Mondlane University, Maputo, Mozambique
Abstract
Introduction
Sesame is a vital oilseed crop, valued for its high oil content and nutritional properties, but its productivity is hindered by various factors, including biotic, abiotic stresses, poor agronomic practices among others.To enhance productivity, understanding the genetic diversity and relatedness is key by selecting parents with wider variability for different traits for long-term genetic gains.
Objectives
This study therefore aims to determine the level of phenotypic variation and its pattern in 100 diverse genotypes using agro-morphological traits.
Methodology
The experiment will be conducted in one season (February–August 2025) across three locations in Mozambique (Ribaue and Mutuali) and Tanzania (Naliendele), representing different agro-ecological zones. A 10x10 lattice design with two replications will be used. A combined analysis of variance across locations will be performed after Bartlett's homogeneity test of variance. Mean comparisons among genotypes will be computed using Tukey's Honestly Significant Difference (HSD) test procedure at 5% level of significance. Additionally, multivariate analysis methods; Principal component analysis and clustering will be computed to group the genotypes.
Expected Results and Conclusions
The expected outcomes include the determination of substantial genetic variation among the genotypes that can be used by breeders to select complimentary parents for hybridization. Furthermore, the study anticipates to identify high yielding genotypes.
KEYWORDS: Sesame, genetic diversity, yield, wide adaptation