目前国内外鉴定花粉植株的倍性,一般都是用植物染色体的常规压片法,由于小麦染色体数目较多,并且染色体较长,此法难于掌握。因此,我国的花粉单倍体育种单位大都不进行染色体检查,也不加倍处理,让其自然加倍。花粉植株的自然加倍情况水稻较高,可达50-60％;小麦为20％左右。也就是说50-80％的单倍体花粉植株因鉴定倍性时间长又难于掌握不能结实而浪费掉。 At present, the identification of pollen plants at home and abroad ploidy, are generally used plant chromosomes conventional compression method, due to the larger number of chromosomes in wheat, and chromosomes longer, this method is difficult to grasp. Therefore, most pollen haploid breeding units in our country do not carry out chromosome examination, nor double treatment, let it double natural. Natural doubling of pollen plants Rice is high, up to 50-60%; wheat is about 20%. That is to say, 50-80% of haploid pollen plants are wasted because of the identification of ploidy and difficult to grasp.