Oil and Fatty Acid Profiles of Soybeans
نویسندگان
چکیده
Soybean oil contains 14 fatty acids and five of them, C16:0, C18:0, C18:1, C18:2, and C18:3, are considered essential fatty acids for proper human nutrition. Increasing the oil content and improving the ratio of the various fatty acids in soybeans is a goal for many breeding programs. The objective of this research was to evaluate the relationship between grain yield, oil content, and fatty acid composition in soybean cultivars and experimental lines grown in Oklahoma. Yield, oil content, and fatty acid composition was determined in trials conducted at three locations in 2000 and 2001. In 2000, temperatures were above the optimum for seed development and severe drought stress occurred at the non-irrigated locations. These soybeans had a high C18:1 content and low C18:2, C18:3, and total oil content. Negative correlations between C18:2/C18:0, C18:2/C18:1, and C18:3/C18:1 were also observed in all tests. In 2001, temperatures were still above optimum, but there was no drought stress during seed development; this led to the fatty acid compositions being within their expected ranges, but oil percentages
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