KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)
- Volume 1 Issue 1
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- Pages.3-25
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- 1963
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
Studies on the soybean varieties in Korea -1. Classificiatons of Ecotypes and Maturity groups-
대두의 품종에 관한 연구 -제1보 생태형과 성숙군의 분류-
Abstract
Experiments were carried out to classify the ecotypes and maturity groups of soybean varieties, and to make clear the relationships among these ecotypes, maturity groups and some characteristics in the growing and ripening process of soybean varieties in Korea. Soybean varieties used as the material were 138, 57 varieties collected from Japan, America and Canada and 81 local varieties of Korea. These varieties were grown in the Experimental Farms, College of Agriculture, Seoul National University, Suwon, Korea and Chinju Agricultural College, Kyungsang Namdo, Korea. Seed sowing was conducted at 8 times from April15 to July 29, at 15 day-intervals, in 1962. The classification methods of ecotypes and maturity groups applied in this study, and the results obtained are summarized as follows; 1. Ecotypes were classified from the standpoint of the periods from emergence to flowering, the shortened ratio of days from sowing to flowering by delayed sowing, and the periods from flowering to maturity(as shown in Table A). 2. All varieties wer classified into 10 ecotypes of Ia
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