Stability analysis of finger millet genotypes across diverse hilly and mountainous environment in Nepal

Bishnu Prasad Kandel

Abstract


Interactive influence of the genotype and environment (GxE) affects the selection criteria of finger millet (Eleusine coracana L.) genotypes. Sixteen finger millet genotypes were evaluated for stability of grain yield performance in three hilly and mountainous environments viz Dolakha, Ramechhap and Sindupalchowk in rainy seasons of 2019. The intention of this study was to determine the interaction between genotype and environment on growth and yield performance of finger millet genotypes. The results showed that there were significant differences between the genotypes for grain yield. The pooled analysis showed significant (p<0.05) variation in GxE interaction for grain yield. The genotypes GE-0382, KLE-216, NE-94 and KLE-559 were found environmentally sensitive, producing higher grain yield throughout the environments. Genotypes GE-0382, and KLE-559 had the regression coefficient of 1.30 and 1.35, respectively. The coefficient of determination (R2) for genotypes viz GE-0382 and KLE-559 were high as 0.9, confirming their high constancy for the solidity across the different locations. Further GGE biplot analysis showed that the genotype GE-0382 (3.46 t/ha) and KLE-559(2.74 t/ha) were more secured and adaptable genotypes over the tested environment. Thus, these genotypes presum

Keywords


Finger millet (Eleusine coracana (L.) Gaertn), G×E interaction, GGE biplot, Grain Yield.

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References


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DOI: http://doi.org/10.17503/agrivita.v44i1.3039

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