Evaluation of Sunflower Inbreds, Hybrids and Populations for Self-Compatibility Over Seasons

Sunflower inbreds, hybrids and populations were evaluated for self-compatibility during monsoon and summer seasons. Evaluation was based on seed yield, number of filled seeds and seed set under different treatments, viz., cloth bag, doth bag with hand pollination, and open pollination. All genotypes, in general, recorded higher seed yield, number of filled seeds, seed set, autogamy, and self-compatibility during summer as compared to monsoon season. In both seasons, hybrids were comparatively more self-compatible man inbreds and varietal populations. CMS 234 and PR-1 amongst inbreds, cms 234 × PR-1 and F-97 × RHA 265 amongst hybrids, and CGP-1 and Sarya amongst the varietal populations appeared to be more self-compatible than other genotypes. Importance of evaluating the lines for self-compatibility in population improvement and heterosis breeding has been discussed.