대두의 종자관리와 종실수량 = Seed Management for Better YieMs in Soybeans

다국어 초록 (Multilingual Abstract)

In narrow sense seed management means the threshing, drying, cleaning and storage after harvesting but in broad sense for better yields it includes not only the above managements but also the management of seed preparation for planting, growing and harvesting. Good seed management is very important in the respect that seed is not only the final product but also the precursor for the next generation. The best seeds can be annually obtained from either the Agricultural Cooperation in county or sub-county which produce certified seeds or the Exhibition Fields and Certified Seed Producing Farmer`s. For better germination and seedling growth, the complicated seed coating techniques are under development. At least the seed coating of fungicide is recommended for better standing. For the production of good quality seeds especially free from purple seed stain and pod and stem blight, one or two times of fungicide application during the soybean growth is advised. Harvesting should not be too late for both high yield and good seed quality. Cylinder seed at threshing is also very important for the quality seed production. The drier the seeds the better the quality of the seeds for storage but not lower than 8 percents in moisture content are recommended, especially for soybeans. To be the first grade soybean seeds for government purchasing in Korea, the ratio for intact seeds should be higher than 90 percent while the percentage for the seed moisture contents, the seeds having different seed coat color, the infected seeds and the miscellaneous should be lower than 14.0, 0.2, 9.5, and 0.5 respectively.