将野生棉的一些特殊性状通过种间杂交转育到栽培棉上,藉以培育新的优良品种,这是当前棉花育种的一个重要途径,但是棉属野生种中绝大多数的染色体为二倍体,以二倍体野生棉与目前广泛种植的四倍体栽培种——陆地棉杂交,存在着杂交不亲和与杂种不育的困难。而野生棉的夏威夷棉(又称毛 Some special traits of wild cotton are transferred to cultivated cotton through interspecific hybridization so as to breed new fine varieties, which is an important way of cotton breeding at present. However, most chromosomes of cotton wild species are diploid , Hybrid diploid wild cotton and tetraploid cultivars now widely planted - upland cotton, there are hybrid incompatibility and hybrid sterility difficulties. The wild cotton Hawaii cotton (also known as wool