Abstract

G x E interaction and stability parameters of 18 genotypes of safflower under three diverse environments for yield and its related traits were studied. It was observed that G x E interaction was significant for all the traits studied. The results indicated that linear and non-linear components of G x E interaction were responsible for the differences in the stability of genotypes observed.TSF 16 was observed to be desirable for days to 50% flowering, days to maturity and 100-seed weight whereas, TSF 10 was found to be stable for days to maturity and test weight. Further TSF 4, TSF 8, TSF 1 and TSF 15 had high seed yield and non significant (bi>1) deviation indicating that these genotypes would perform better in favourable conditions whereas, TSF 7 and TSF 17 with bi<1 and non significant s2di values indicated that these genotypes would perform well in unfavourable conditions.

Keywords: Stability parameters, safflower, G x E interaction