通过培养单倍体植株的途径选育良种,是植物快速育种的新方法.经过无产阶级文化大革命,我国科技人员与工农相结合,将这一方法应用于水稻、小麦、烟草等农作物的育种实践,取得了可喜的成绩. 林木多为异体受精,杂合性高,而且发育周期较长,这给有性杂交育种工作带来了一定的困难.如通过单倍体植株使隐性基因得到表现并获得纯系,既能提高选育效率,大大缩短育种周期,又能为杂种优势利用、 Through breeding of haploid plants, breeding of new varieties is a new method of plant rapid breeding.After the Great Proletarian Cultural Revolution, our country’s scientific and technological personnel and workers and peasants combine to apply this method to the breeding of rice, wheat, tobacco and other crops , And achieved gratifying results.Forest is mostly allogeneic fertilization, high heterozygosity, and a long development cycle, which gives sexual hybrid breeding has brought some difficulties, such as the haploid plants through the recessive gene to be performance And access to pure lines, both to improve breeding efficiency, greatly reducing the breeding cycle, but also for heterosis utilization,