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植物学对作物育种的重要意义

更新时间: 2020-11-03 00:00:00     

1、提高单位面积产量;

2、改善产品品质;

3、减轻和避免自然灾害;

4、扩大种植面积;

5、有利于耕作制度的改革和复种指数的提高;

6、促进农业机械化发展及提高劳动生产率;

7、提高农业生产的经济效益;

8、育种新途径有:(1)杂种优势利用(2)远缘杂交(3)理化诱变(4)组织培养(5)细胞融合(6)基因工程。

关键词: 植物学 作物 育种 重要 意义

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