Stability analysis of different sunflower hybrids (Helianthus annuus L.): Stability analysis of different sunflower hybrids (Helianthus annuus L.)

In present study eleven hybrids along with two check hybrids were evaluated for seed yield/plot (g), head diameter (cm), plant height (cm) and 100 seed weight (g) over three environments. The Genotype x environment interaction was found significant for all the characters suggesting the presence of genetic variability in the hybrid population. The environment indices revealed that E1 was the favorable environment for seed yield/plot (g), E2 for 100 seed weight (g), and for plant height (cm) and head diameter environment E3 was favorable. With respect to stability parameter, the hybrids SVSH-488, SVSH-514, SVSH-517 and check Phule Raviraj were stable for seed yield/plot (g); SVSH-520 for head diameter (cm); SVSH-488, SVSH-512, SVSH-517, SVSH-519 and check Phule Raviraj stable for 100 seed weight (g) with high mean, bi value nearer to unity (bi=1) and non-significant S2di. For plant height (cm) SVSH-512, SVSH-513, SVSH-514 and SVSH-517 showed stable performance.