Genotype by environment interaction, correlation, AMMI, GGE biplot and cluster analysis for grain yield and other agronomic traits in sorghum (Sorghum bicolor L. Moench)

Muluken Enyew, Tileye Feyissa, Mulatu Geleta, Kassahun Tesfaye, Cecilia Hammenhag and Anders S Carlsson

PLOS ONE, 2021, vol. 16, issue 10, 1-22

Abstract: Genotype by environment (G×E) interaction is a major factor limiting the success of germplasm selection and identification of superior genotypes for use in plant breeding programs. Similar to the case in other crops, G×E complicates the improvement of sorghum, and hence it should be determined and used in decision-making programs. The present study aimed at assessing the G×E interaction, and the correlation between traits for superior sorghum genotypes. Three hundred twenty sorghum landraces and four improved varieties were used in alpha lattice experimental design-based field trial across three environments (Melkassa, Mieso and Mehoni) in Ethiopia. Phenotypic data were collected for days to flowering (DTF), plant height (PH), panicle length (PALH), panicle width (PAWD), panicle weight (PAWT) and grain yield (GY). The results revealed that the variance due to genotype, environment and G×E interaction were highly significant (P

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0258211

DOI: 10.1371/journal.pone.0258211

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