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1981年,洞庭湖区引进杂交稻新组合21个,加上原有的威优6号、汕优6号、四优6号等3个迟熟组合,共24个,以当地当家晚釉、晚粳良种为对照,进行了品比试验。有南县、沅江、湘阴、安乡、常德、华容县和省农科院益阳基点等9个单位参加。基本上按统一设计方案进行试验和观察记载(因种子
In 1981, Dongting Lake introduced 21 new combinations of hybrid rice, plus three late-maturing combinations of the original Weiyou 6, Shanyou 6 and Siyou 6, with a total of 24 late-season japonica hybrids Variety as a control, the ratio test. There are nine units including Nanxian, Yuanjiang, Xiangyin, Anxiang, Changde, Huarong County and Yiyang Base of Provincial Academy of Agricultural Sciences. Basically, according to a unified design test and observation records (due to seeds