AMMI analysis of elite bread wheat ( Triticum aestivum L.) selections for genotype by environment interaction and stability of grain yield in Southern Ethiopia

Liyew Alemayehu, Mesfin Kebede and Eyasu Wada

PLOS ONE, 2025, vol. 20, issue 1, 1-27

Abstract: Smallholder wheat farmers of Ethiopia frequently use landraces as seed sources that are low yielders and susceptible to diseases due to shortage of seeds of adapted improved bread wheat varieties. Developing novel improved varieties with wider adaptability and stability is necessary to maximize the productivity of bread wheat. Hence, a multi-location field trial was conducted across four locations in south Ethiopia during the 2022/23 main cropping season with the objective of estimating the magnitude of genotype by environment interaction (GEI) effect, and determine the stable genotype among the 10 Ethiopian bread wheat advanced selections using a randomized complete block design (RCBD) with three replications. The data recorded from all plots on 13 agronomic traits and the three wheat rust diseases were computed using appropriate statistical software. The results showed that individual and combined analysis of variance (ANOVA) exhibited the presence of highly significant variability (P

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0318559

DOI: 10.1371/journal.pone.0318559

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