This study was carried out to examine agro-nomic characteristics and seed qualities of 827 Korean soy-bean landraces according to the collecting areas. Agrono-mic characteristics and seed qualities was examined accord-ing to the localities by weather characteristics. Days to flowering was the longest (mean 70.9 days) in the north-west seashore, and the most short in the south inland (mean 63.8 days). Growth days was the longest in the Gyeongbuk inland (mean 136.0 days), and the most short in the mountain-high (mean 132.8 days). The stem height was the most short in the north-west seashore (mean 81.3 cm), and in the south seashore (mean 58.8 cm). The seed weight of 100 seeds was the lightest in the north-west seashore (mean 17.1 g), and the heaviest in the south-west seashore (mean 21.5 g). The crude protein contents was the lowest in the north-west seashore (mean 40.1%), the highest in the south seashore (mean 42.8%), and vice versa in the crude oil. The contents of sucrose and oligo-saccharide was the highest 5.8% and 8.6%, respectively, in the mountain-high, and the lowest 4.8% and 7.6% in the Gyeongbuk inland and south seashore, respectively. Among the iso-flavone contests, the contents of genistein and total was the highest, 635.6 μg/g and 1258.1 μg/g, respectively, in the mountain inland, and the lowest 319.2 μg/g and 835.3 μg/g in the south-west seashore. The contents of glycitein was the highest 124.3 μg/g in the south seashore.
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