品种间杂交是目前甘薯育种的主要方法。通过有性杂交和采用无性繁殖的方法,性状可迅速的稳定下来,再经过一系列选择、鉴定等手段,有可能将符合育种目标要求的优异材料选育成新品种。因而,早期世代的选拔尤为重要。但单株生产力的特性表现如何又往往受株系苗数少、苗质差异大和 Breeding is the main method of sweet potato breeding. Through sexual crossbreeding and asexual reproduction, traits can be rapidly stabilized. After a series of selection and identification methods, it is possible to breed superior materials that meet the breeding target requirements into new varieties. Therefore, the selection of early generations is particularly important. However, the characteristics of individual plant performance and often affected by the number of lines less seedlings, nudity and differences