A field experiment was conducted on twelve sorghum genotypes against one local and two standard checks at Haro Sabu Agricultural Research Center (HSARC) sub sites for three consecutive years (2016-2018) using randomized completely block design (RCBD) to evaluate and select high yielding sorghum genotypes and to assess the impact of genotype by environmental interaction on grain yield and yield components across diverse growing environments of western Oromia. Eight agronomic traits and three economically important disease reaction were collected depending on the crop descriptor. Pooled over locations analysis of variance detected significance difference among tested genotypes for all collected traits. Genotype by environment interactions (G×E) significantly affected all recorded traits excluding days to heading and thousand seed weight. Genotype and genotype by environment interaction (GGE) bi-plot analysis revealed that G3, G11 and G12 as ideal genotypes in terms of yielding ability and stability and were promoted as candidates for possible release and use as genetic resource in future breeding programs.
Key words: Sorghum bicolor L., Genotype by environment interactions (G×E), Genotype and genotype by environment interaction (GGE) bi-plot, stability.
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