Studies on effects environment on finger millet genotypes for seed and fodder yield based on AMMI and BLUP model

The study was carried out to assess the patterns of GEI governing seed and fodder yield, identify stable and high seed and fodder yielding finger millet genotypes evaluated in ten locations in Kharif-2022 in India. The variance due to genotypes, environment and GEI was highly significant for seed and fodder yield. Upon comparison of different AMMI and BLUP models, BLUPg and BLUPge were the best prediction models that adequately explained the variation due to GEI for seed and fodder yield, respectively. The GGE biplot indicated that WN 577 and TNEc 1342 were the ideal genotypes for seed and fodder yield, respectively; the genotype with maximum mean and high stability was IIMR-FM-R21-8012 for seed and fodder yield. IIMR-FM-R21-8012 performed better for seed and fodder yield across maximum test locations. WN 577 and IIMR-FM-R21-8001 showed excellent stability across all the test locations based on AMMI stability indices, while IIMR-FM-R21-8012 and PR 1734 based on BLUP model stability indices for seed yield. Whereas, for fodder yield the genotypes IIMR-FM-R21-8012 and TNEc 1341 were highly stable based onAMMI-and BLUP model stability indices. Therefore, this study identified IIMR-FM-R21-8012 and PR 1734; IIMR-FM-R21-8012 and TNEc 1341 as worthy genetic resources for seed and fodder yield, respectively.