우리나라 在來種 蒐集 大豆의 蛋白質 및 脂肪含量에 關한 硏究 Ⅱ

Diversity of Protein and Oil Contents of the Korean Native Soybean Seeds Ⅱ

A collection of 840 native soybean lines currently grown by farmers was made from the southern part of Korean peninsula. The variability of chemical contents in seeds and relationships between chemical contents and important agronomic traits were studied. 1. The variability for both protein and oil contents are 33.2%-49.8% and 11.2%-23.4%, respectively. The population consisted with over 60 percent of lines containing more than 41% of protein, while approximately 85% of lines belong to low oil category ranged from 15 to 19 percent of oil. 2. It was discouraged in finding marker genes for high protein and high oil content in this investigation. Therefore, appropriate methods of analysis for protein and oil are urgently needed to develop for screening large number of strains in early stages. 3. Sixty six high protein lines (over 45 percent and eight high oil content lines (over 21 percent) were found from the collection. After advanced test, the selected lines will be decided to utilize breeding materials for high protein and high oil.