应用花粉培养方法进行作物育种工作,就是利用花粉培养使花粉发育为单倍体植株,然后经过加倍处理,使这些单倍体植株成为纯合二倍体,再在其中迅速选出稳定的优良新品系,加快品种的育成。这个方法有许多优点。首先,花粉是单倍体,由此而来的植株也是单倍体;而且一个花药内花粉数量很多,这就有可能产生较多的单倍体植株。其次,在培养过程中愈伤组织常发生染色体数的自然加倍,因而有可能直接得到纯合二 Application of pollen culture crop breeding work, is the use of pollen culture pollen developed into haploid plants, and then doubled, so that these haploid plants become homozygous diploid, and then quickly select a stable good new Line, accelerate the breeding of varieties. This method has many advantages. First, the pollen is haploid and the resulting plant is also haploid; and the large number of pollen in one anther makes it possible to produce more haploid plants. Second, callus often produces a natural doubling of chromosome numbers during culture, making it possible to directly obtain homozygous