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一、选育经过和产量表现浙春2号(原名77Q12—66—26)是浙江省农科院作物所1977年秋用德清黑豆为母本,兖黄1号为父本进行杂交,1979年从F_2代分离群体中选出17个单株,1980年从F_3代选出119个单株,1981年从F_4代选出10个单株,同年秋天繁育成株系,1982年定型。1982年～1983年参加品比试验,同时在衢州市农科所、兰溪县农科所和瑞安、义乌、余杭等县进行多点鉴定,并开始繁育和提纯工作。1984～1985年参加两年省区试,1986～1987进行生产试验,累计推广面积4000余亩,1987年11月通过浙江省品种审定委员会审定。经多年试验,浙春2号具有熟期适中,产量较高而稳定,耐瘠易种,较抗病等优
First, the breeding and yield performance Zhejiang Chun 2 (formerly 77Q12-66-26) is the Institute of Crops, Zhejiang Academy of Agricultural Sciences in autumn 1977 with Deqing black beans as the female parent, Yanhuang 1 as the male parent hybrid in 1979 from Seventeen individuals were selected from the F_2 generation, 119 individuals were selected from the F_3 generation in 1980, 10 individuals were selected from the F_4 generation in 1981, and bred in autumn in the same year. 1982 to 1983 to participate in the ratio test, at the same time in Quzhou City Institute of Agricultural Sciences, Lanxi County Agricultural Science Institute and Ryan, Yiwu, Yuhang counties more identification, and began breeding and purification work. From 1984 to 1985 to participate in two provinces and municipalities, 1986 ~ 1987 production test, the cumulative promotion of an area of more than 4,000 acres, in 1987 November through the Zhejiang Provincial Examination and Approval Committee. After years of testing, Zhechun No. 2 with moderate maturity, high yield and stability, barren easy to grow, more resistant and so on