The difference of general combining ability (GCA) and specific combining ability (SCA) among varieties were highly significant. Wva700 and L3708 which showed excellent GCA were high value parent for late blight resistant.

• 供试品种间一般配合力和特殊配合力存在极显著差异，Wva700，L3708具有较高的一般配合力效应，二者在配制抗性组合时是较为优良的杂交亲本。