Stability analysis of sesame (Sesamum indicum L.) genotypes in the savannas of Nigeria using multi-traits stability index

Q3 Agricultural and Biological Sciences

Ecological Genetics and Genomics Pub Date : 2025-10-08 DOI:10.1016/j.egg.2025.100415

A.S. Shaibu, U. Abduljalil, A.B. Yakubu

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Abstract

Sesame (Sesamum indicum L.) is an important oil seed crop mainly grown for its edible seeds. However, several production constraints have limited the yield per unit area in Nigeria among which includes the identification of suitable and stable varieties. To identify high-yielding and stable sesame genotypes for the Nigerian savannas, this study evaluated 15 genotypes across four locations during the 2024 wet season. The objective was to assess stability using parametric, non-parametric, and multi-trait stability index (MTSI) models. Field trials were conducted in a randomized complete block design, and data on key agronomic traits were subjected to combined analysis of variance and AMMI models. Significant differences were observed among the genotypes (G), environments (E) and G × E interaction for all the traits studied, except for the effect of E and GEI on number of capsules per plant. NCRIBEN02M had the highest grain yield (447.76 kg/ha) followed by NCRIBEN04E (424.08 kg/ha). The AMMI ANOVA showed significant (p < 0.01) effects of environment, genotype and GEI on sesame yield. While parametric and AMMI analyses identified NCRIBEN02M as the most stable genotype, the MTSI, which considers multiple traits, ranked Kangarawa as the most ideal. The study recommends NCRIBEN02M for its high yield and broad stability, and Kangarawa for multi-trait stability.

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利用多性状稳定性指数分析尼日利亚热带稀树草原芝麻基因型的稳定性

芝麻（Sesamum indicum L.）是一种重要的油料作物，主要因其种子可食用而种植。然而，一些生产限制限制了尼日利亚的单位面积产量，其中包括确定合适和稳定的品种。为了确定尼日利亚稀树草原高产稳定的芝麻基因型，本研究评估了2024年雨季四个地点的15个基因型。目的是使用参数、非参数和多性状稳定性指数（MTSI）模型评估稳定性。田间试验采用随机完全区组设计，关键农艺性状数据采用方差分析和AMMI模型联合分析。除E和GEI对单株蒴果数的影响外，其余性状的基因型(G)、环境(E)和G × E互作均存在显著差异。NCRIBEN02M籽粒产量最高（447.76 kg/ha），其次是NCRIBEN04E （424.08 kg/ha）。AMMI方差分析显示，环境、基因型和GEI对芝麻产量影响显著（p < 0.01）。虽然参数分析和AMMI分析确定NCRIBEN02M是最稳定的基因型，但考虑多种性状的MTSI将袋鼠列为最理想的基因型。该研究推荐NCRIBEN02M高产且广泛稳定，而Kangarawa具有多性状稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ecological Genetics and Genomics Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： Ecological Genetics and Genomics publishes ecological studies of broad interest that provide significant insight into ecological interactions or/ and species diversification. New data in these areas are published as research papers, or methods and resource reports that provide novel information on technologies or tools that will be of interest to a broad readership. Complete data sets are shared where appropriate. The journal also provides Reviews, and Perspectives articles, which present commentary on the latest advances published both here and elsewhere, placing such progress in its broader biological context. Topics include: -metagenomics -population genetics/genomics -evolutionary ecology -conservation and molecular adaptation -speciation genetics -environmental and marine genomics -ecological simulation -genomic divergence of organisms