Vol. 11, Issue 12 (2022)

Author(s):
Dr. B Meena Kumari

Abstract:
An experiment was conducted using thirty advanced cultures and released varieties of sesame for understanding the stability of genotypes for seed yield over years. IPCA 1 has the major role in deciding the G x E interaction in this study. As the experiment was conducted in rabi seasons of three consecutive years, the mean seed yield was higher during first year and was lower in the third year. From AMMI analysis, it was found that the genotypes COS 15003, COS 15204, COS 15212, COS 15213 and COS VRI 2 had the IPCA 1 score close to zero and were less influenced by the environment. The entries COS 15020 and COS 15016Br were also identified as high yielding but had moderate influence of G x E interactions. In Ammi 2 Biplot analysis, the genotypes COS 15003, COS 15204, COS 15207, COS 15211 and VRI 2 were very close to the centre of the origin and are not sensitive to the environmental interactions. In GGE Biplot, E1 fell in the sector in which COS 15011was the vertex cultivar, for E2 sector COS 15010 and COS 15022 is at the vertex for environment 3. The genotypes COS 15003, COS 15204 and VRI 2 were less interacting genotypes over environments along with high seed yield. These genotypes may be recommended for cultivation during rabi seasons.