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单词
自交不亲和
释义
自交不亲和
Encyclopedia
农学
〔杂交育种性状〕
释
self-incompatibility
自交不亲和
自花授粉时花粉不能在柱头上萌发,或萌发后花粉管生长受限、胚珠无法受精、胚的发育受到抑制,导致无法产生种子和坐果率极低的现象。
理学
自交不亲和
释
self incompatibility
自交不亲和
雌雄蕊均发育正常的两性花植物在自花授粉后不育的现象。是植物防止近亲繁殖,促进变异的遗传机制。又称种内不亲和性(intra-specific incompatibility)。
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