Seed oil and fatty acids of different safflower genotypes and their correlations with agronomic traits and photosynthetic parameters
2008
Guan, L.L. | Wu, W. | Zheng, Y.L., Sichuan Agricultural Univ., Ya'an, 625014, (P.R. China). Agronomy Coll.
The differences and interactions between the contents of oil and fatty acids of safflower genotypes introduced into Ya'an, Sichuan province of China were evaluated, and their relationships with the agronomic traits and photosynthetic parameters were analyzed. Based on the results, the content of oil percentage ranged from 9.10-24.87%, of palmitic acid from 4.08-7.58%, of stearic acid from 1.42-2.53%, of oleic acid from 8.04-32.96% and of linoleic acid from 59.90-86.70%. Differences in oil content and fatty acids among genotypes were significant. Oleic acid was significantly correlated with linoleic acid. All correlation coefficients between oil content and fatty acids were nonsignificant. Most of the correlation coefficients between agronomic traits and fatty acids were insignificant. Some photosynthetic parameters, such as photosynthetic and transpiration rate, were significantly correlated with oil content and some fatty acids. This indicated that safflower breeding with high photosynthetic efficiency would be an effective way for improving the yield and quality of safflower seed oil.
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