Abstract            Volume:13  Issue-5  Year-2025         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

In multi-environment trial, considering both the stability and marketable tuber yield is very important. This experiment was conducted with the objective of to determine the magnitude of G x E interaction and select stable, high yielding, resistant reaction to late blight and specifically performed genotypes for target environments. A total of 12 Potato genotypes including 2 standard checks were evaluated at six locations during 2022/23 and 2023/24 ‘Belg’ cropping seasons. The genotypes were arranged in Randomized Complete Block Design and replicated three times. Combined ANOVA, AMMI and GGE bi-plot models were used to analyze the data. Both AMMI and GGE biplot analyses identified that genotypes G-3(CIP-313033.06) and G-7(CIP-395126.6) were confirmed as widely adapted genotypes with likewise recorded higher marketable tuber yield of 47.80 t/ha and 41.98 t/ha, respectively. The significant effect of genotype x environment interaction on marketable tuber yield, dry matter, specific gravity and starch content suggests the importance of testing genotypes across locations over years to benefit producers, processors and other consumers. Accordingly, genotypes were superior than the standard checks with marketable tuber yield advantage of 50.88% and 32.50%, respectively and were recommended as candidate varieties for further evaluation and release.

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