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一个大豆新品种在生产种植中往往由于机械混杂,不良气候条件及栽培条件以及天然杂交,突变等原因,使优良品种种性和纯度逐年变劣,而致大豆良种在大田生产中出现成熟期、株高、株形及粒大小等性状不一致及生长不良植株的混杂现象,使产量降低、品质
管好大豆留种田
【摘 要】
：
一个大豆新品种在生产种植中往往由于机械混杂,不良气候条件及栽培条件以及天然杂交,突变等原因,使优良品种种性和纯度逐年变劣,而致大豆良种在大田生产中出现成熟期、株高
【出 处】
：
大豆科学
【发表日期】
：
1993年02期
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