对青海祁连境内中国沙棘×肋果沙棘(Hippophae rhamnoidesssp.sinensis×H.neurocarpassp.neurocarpa.)自然杂交带的形态变异规律进行了初步研究.主成分分析表明,杂交带内个体在营养性状上具有中国沙棘到肋果沙棘的过渡性.Anderson“杂种指数”研究发现,其遗传组成比较复杂,在棱果沙棘杂交起源过程中由于深度杂交引起双亲基因渗入的可能性极大,而不是以往认为的仅是由F1代强势主导的自然杂交带. The morphological variation of natural hybrid belt of Hippophae rhamnoidesssp.sinensis × H. neurocarpassp. Neurocarpa. In the Qilian, Qinghai Province was studied. The principal component analysis showed that the individuals in the hybrid belt had China seabuckthorn to ribbed seabuckthorn transitional.Anderson “hybrid index ” study found that the genetic composition is more complex, the origin of hybrids in the fruit of Prickly pear due to in-depth hybridization caused by the possibility of parents infiltration, but not in the past Think only by the F1 generation dominate the natural hybrid belt.