在來栽培種 大豆의 成熟群別 形質間의 相關

Interrelationships among Agronomic Traits within Maturity Group of Korean Native Soybean

Eight hundred fourty native soybean lines, collected throughout the Korean peninsula, were grown a field in the vicinity of Seoul City, and studied their maturity and relationshipes among the important agronmic characters within the maturity group. 1. The collected lines were classified according to the maturity. The distribution of maturity groups were 0.1% for group 0, 0.6% for group I, 8.9% for group II, 20.1% for group III, 24.5% for group IV, 34.4% for group V, and 11.4% for group VI. These results indicats that majority of Korean native soybeans are belong to maturity groups III and IV. 2. The majoity of the collected lines from the Gyeonggi Province were earlier in maturity as compare to the lines collected from the other provinces. The collected lines from the provinces of the lower latitude tend to late in maturity. 3. The maturity appeared in large deviation ranging from 112 clays to 160 days. However, either extremely early or late maturity lines from this population were found in a small number. Correlation between maturity and seed yield was shown in negative.