NDLI: Seed Yield Stability and Genotype x Environment Interaction of Common Bean (Phaseolus vulgaris L.) Lines in Ethiopia

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Seed Yield Stability and Genotype x Environment Interaction of Common Bean (Phaseolus vulgaris L.) Lines in Ethiopia

Content Provider	Semantic Scholar
Author	Arke, Zeleke Ashango Amsalu, Berhanu Tumisa, Kidane Negash, Kassaye Fikre, Asnake
Copyright Year	2016
Abstract	When genotypes are introduced into a new and diverse production environments, occurrence of significant genotype by environment interaction (GEI) complicates selection of stable genotypes. Therefore, fifteen introduced and one check small red common bean lines were evaluated at five representative dry bean growing locations of Ethiopia for seed yield performance using a 4x4 triple lattice design in the 2013 and 2014 main cropping seasons to estimate the magnitude of GEI effects and to identify broadly or specifically adapted lines. Combined analysis of variance, Additive Main effects and Multiplicative Interaction (AMMI) and Genotype plus Genotype x Environment interaction (GGE) biplot models were used to interpret the data. Both the main and interaction effects were highly significant (p< 0.01) and environment, line, and GEI explained 81.06%, 3.21% and 15.73% of variations, respectively, indicating greater influence of environments and importance of simultaneous consideration of mean performance and stability. PC1 and PC2 were highly significant (p < 0.01) and together contributed nearly 60% variation in the GEI sum of squares. AMMI 1, GGE ranking, and GGE comparison biplots enabled identification of both high seed yielding and broadly adapted lines, KG-71-1, KG-71-23, and KG-71-44. Polygonal GGE biplot analysis enabled identification of four mega-environments and specifically adapted lines. However, the specific adaptability of lines was not repeated over years and thus, GEI couldn't be exploited and therefore, broadly adapted lines were recommended for verification and release.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://premierpublishers.org/ijpbcs/290720163663.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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