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da dou fu she yu za jiao xiang jie he hou dai xuan ze fang fa de yan jiu
Author(s): 
Pages: 254-258
Year: Issue:  6
Journal: he nong xue tong bao

Keyword:  选择方法变异系数农艺性状相结合辐射与杂交系谱法间杂交后代大豆品种辐照处理优株;
Abstract: 1983年采用不同特性的大豆品种配制4个杂交组合,当年冬季南繁加代。1984年用8,10,12,15kR60Coγ射线辐照种子,秋季收获 M1植株,单株脱粒.1985年种成 M2代,秋季开始进行系谱法、一荚传法、摘优株荚法3种方法的比较试验。试验表明,大豆辐射后代农艺性状的变异系数高于未辐射后代,其世代的演变进程与品种间杂交后代相似。世代越高,农艺性状的变异系数越低。3种选择方法给后代产量带来的差异不明显。但每种方法又各有特点,系谱法稳定较快,一荚传法及摘优株荚法较为省工。
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