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龙豆23系我所于1982年以紫花古田豆为母本,与白千城杂交,经培育而成的较早熟大豆新品种.1982年春季配组杂交,经1982～1984年采用春、秋、冬一年三季加代繁殖,于1984年定型.1985年在本所参加新品系试验对比,表现突出,产量折亩产133.1公斤,比对照古田豆增产48.7%.秋季加速繁殖种子在大区试验比较中亩产74公斤,比对照种古田豆增产28.6%.
Long bean 23 Department I was in 1982 with Purple Gutian beans as the female parent, and Baiqian City, the more mature cultivated from the new varieties of soybean. Spring 1982 with the group of hybrids, the 1982 to 1984 by the spring and autumn , Winter three seasons plus breeding, set in 1984. Comparison of the new line in 1985 to participate in the new trial, the performance of the output per acre yield 133.1 kg, 48.7% more yield than the control Gutian beans. Accelerated breeding seeds in the fall test in large areas Compared to 74 kg per mu, compared with the control of Gutian beans yield 28.6%.