Evaluation of yield performance of advanced sesame genotypes in northern and eastern Uganda.
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Date
2025
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Busitema University
Abstract
Sesame (Sesamum indicum L.) is one of Uganda’s most important oilseed crops, widely cultivated by smallholder farmers, particularly in the Northern and Eastern regions. The crop contributes significantly to household income, nutrition, and export earnings. However, national sesame productivity remains low, averaging below 600 kg ha−1, largely due to the continued use of unimproved landraces, limited access to improved seed, and variable climatic and soil conditions across production zones. The study evaluated the yield performance and stability of sixteen advanced sesame (Sesamum indicum L.) genotypes across four locations in Northern and Eastern Uganda. That’s to say Abii-ZARDI, Ngetta-ZARDI, Kaberamaido and Tororo Trial Variety Centres (T.V. C’s). A randomized complete block design (RCBD) with three replications was used to assess genotypic performance and genotype-by-environment (G × E) interactions. Results from the combined ANOVA revealed highly significant (p < 0.001) differences among genotypes and environments for yield and yield components, however the genotype × environment interaction was not significant for yield but significant for total capsules, indicating differential genotype responses across sites. Mean yield across environments ranged from 289.5 kg/ha (G14) to 963.2 kg/ha (G2), with a general mean of 604 kg/ha. Stability analysis using the AMMI and G*E models identified genotype G10 as the most stable (ASV = 1.05), while G2, G12, and G1 exhibited the highest mean yields. Among environments, Tororo (705.8 kg/ha) was the most productive, followed by Abii-Zardi (633.2 kg/ha). The findings highlight the presence of both adaptable and location-specific genotypes, providing insights for sesame improvement and regional variety selection in Uganda.
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Undergraduate research report
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Omara, B. (2026). Evaluation of yield performance of advanced sesame genotypes in northern and eastern Uganda. [Unpublished undergraduate research report]. Busitema University.