在花药培养中,由花粉发育而来的单倍体植株,只有通过自然加倍或人工染色体加倍变成纯合二倍体后,方可正常结实,并可成为快速培育优良品种的宝贵材料。我们在多年的花粉培养实践中观察到,从花粉诱导出的花粉植株中,其倍数性表现是多样的。有一部分花粉植株在培养过程中,通过核内有丝分裂实现了自然加倍,而另有一部分花粉植株则是单倍 In anther culture, haploid plants developed from pollen become normal and robust only by double or natural chromosome doubling to become homozygous diploids, and can be valuable materials for rapid breeding of superior varieties. We have observed in many years of pollen culture practice that pollen plants induced from pollen have multiple fold performance. Some of the pollen plants are naturally doubled during culture through mitosis, while others are haploid