콩收量 및 有用形質의 育種的 改良에 關한 硏究

• 영문명: Studies on the Improvement of Yield and Major Agronomic Characters of Soybean Cultivars
• 발행기관: 한국육종학회
• 저자명: S. D. Kim(金奭東) B. H. Choe(崔鳳鎬) E. H. Hong(洪殷憙) Y. S. Ham(咸泳秀)
• 간행물 정보: 『한국육종학회지』Vol.15 No.3, 1~11쪽, 전체 11쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1983.12.30

영문 초록

To evaluate 1:he degree of improvement of major characters of developed soybean varieties, four varieties, Keumgangdaelip a local variety, Kanglim derived from the cross between Keumgangdaelip and Norin #l, and newly developed Jangyeobkong and Hwangkeumkong, were tested under two levels of planting dates, planting densities, and fertilizer amounts, respectively. No varietal difference in initial standing or emergence. but significant difference in number of plants harvested were observed. The varietal differences in number of plants harvested were believed to be caused by varietal difference in resistance to various stresses during the growth. Among the tested varieties, Keumkangdaelip showed the lowest resistance. The days from flowering to maturity of new variety, Jangyeobkong and Hwangkeumkong were significantly short compared to that of old variety, Keumgangdaelip. Compared to new variety, Jangyeobkong and Hwangkeumkong, old variety, Keumkgangdaelip and Kanglim, showed more number of pods per plant and heavier 100 seed weight, but no consistent tendency was observed in plant height. No viral(SMV and SMV-N) and lodging resistance between Jangyeobkong and Hwangkeumkong, and between Keumgangdaelip and Kanglim, but significant difference between old and new varieties was observed. Lodging index, infection ratio of virus (SMV anal SMV-N) and number of branches, showed minus (-) correlations with seed yield, while plant height, number of nodes on main stem, and number of plants harvested showed plus(+) correlations with seed yield. No varietal difference in total dry weight, but significant difference in seed yield and seed yield per day was observed between old and new varieties. Compared to old variety, Keumgangdelip, new varieties, Jangyeobkong and Hwangkeumkong, showed distinct genetic improvement and recognizable breeding effects in resistance of lodging and virus (SMV and SMV-N), and seed yield. But no such significant genetic improvement or breeding effects were observed between Keumgangdelip and Kanglim.

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