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- Title
RESPONSE TO MASS AND S<sub>I</sub> SELECTION FOR AUTOGAMY, SEED YIELD AND OIL CONTENT IN SUNFLOWER POPULATIONS (Helianthus annuus L.).
- Authors
Gowda, J.; Seetharam, A.
- Abstract
Two population improvement methods, mass selection (two cycles) and SI selection (one cycle) were imposed on a base population to study the response to selection by comparing their efficiency in improving autogamy, seed yield and oil content in sunflower. Mass selection was adopted for developing two distinct populations regarding maturity, one early (80-85 days) and one medium (95-100 days). The derived populations MSE -2 (early) and MSM - 2 (medium) retained substantial variability for most of the characters even after two cycles of mass selection. As compared with the base population, these derived populations showed substantial improvements in seed yield, to an extent of 40 to 65%, oil content (38%) and oil yield (83 to 97%). However, the response to SI selection was effective only in improving oil content. For other characters including seed yield, the derived populations were inferior compared with the base population.
- Subjects
SELF-pollination; SELECTION (Plant breeding); CROP yields; SUNFLOWER seed oil; SUNFLOWER varieties; PLANT populations
- Publication
Helia, 2008, Vol 31, Issue 48, p101
- ISSN
1018-1806
- Publication type
Article
- DOI
10.2298/HEL0848101G