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下列属于化学方法诱导多倍体植株的是()A、极端变温B、电离辐射C、机械损伤D、富民隆...
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凡植物在系统发育中经历的生态条件较为复杂时,其潜在的适应能力也会大些,引种工作一般较易成功。...
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当平均优势大于零时,即F1大于双亲平均值,则杂种优势为()...
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选择在育种中的作用不包括下列哪一项:()A、独立的育种手段B、育种工作的中心环节C、选择具有创造性作用D、物种进化...
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植物体在射线的照射下产生的突变率除与辐照量有关外,还与生()有关...
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