目前国内外都很重视野生棉种,它是种质资源的宝贵材料,在棉花育种上有很大的利用价值.但野生棉种种子小,种壳坚硬,合点端结构特殊,透水性差,用常规方法直播于土壤,难以发芽出苗,即使出苗,如培管不当,也难以长成植株.在南京地区,有的野生种虽能长成植株,但开花不结实或不开花不结实,影响后代的繁衍.我们在工作实践中感到,将野生棉种进行试管种胚培养,然后采用嫁接法繁殖其后代,是保存和繁殖野生棉种的较好的手段.现将方法介绍如下: At present, the wild cotton species are very important both at home and abroad, which is a precious material of germplasm resources, which has great value in cotton breeding.But the seeds of wild cotton are small, the shell is hard, Conventional methods live in the soil, it is difficult to germinate sprouting, even if the emergence, such as improper training, it is difficult to grow into plants in Nanjing, although some wild species can grow into plants, but the flowering is not strong or not flowering, affecting offspring We practice in practice felt that the wild species of cotton in vitro embryo culture, and then the use of grafting propagation of their offspring, is the preservation and propagation of wild cotton species is a better means to introduce the method are as follows: