‘雄株8号’是中国中部大别山区分布的完全雄性柿种质,可能源自中国原产完全甜柿(中国甜柿)的杂交后代或是其自然变异,其作为完全甜柿专用授粉品种的可能性已有研究报道,但其作为完全甜柿育种亲本的应用潜力尚不明确。以‘华柿1号’(不完全涩柿)ב雄株8号’的杂交后代单株为试材,以常见中国甜柿、日本甜柿和非完全甜柿为对照,对其果实进行可溶性和不溶性单宁含量、单宁细胞大小等指标测定,确认杂交后代单株H8-2为具中国甜柿自然脱涩特点的完全甜柿类型。现有完全甜柿自然脱涩性状遗传特点的研究结果认为,只有日本甜柿相互杂交,或者是亲本之一为中国甜柿时,F_1才可能出现完全甜柿单株。该研究结果首次证明中国原产完全雄性柿种质‘雄株8号’带有控制自然脱涩性状的显性基因,因此其在完全甜柿遗传改良中具有作为育种亲本的应用潜力。 ’Xiong Zhu 8’ is a complete male persimmon germplasm distributed in the Dabie Mountains of central China, which may be derived from the cross of offspring of Chinese native Persimmon (Chinese sweet persimmon) or its natural variation as a complete pollination variety for sweet persimmon Has been reported, but its potential as a complete persimmon breeding parent is not yet known. The fruit of “Persimmon 1” (incompletely astringent persimmon) × ’Xiong Zhu 8’ was used as test material and the common Chinese sweet persimmon, Japanese persimmon and non-complete sweet persimmon as control Soluble and insoluble tannin content, the size of tannin cells and other indicators to determine the hybrid offspring of single plant H8-2 as a natural sweet persimmon persimmon nature of the nature of the perfect type. The study on the genetic characteristics of the existing complete astringent natural persimmon suggests that the complete sweet persimmon single plant may appear only when the Japanese sweet persimmons cross each other or one of the parents is Chinese persimmon. The results of this study, for the first time, showed that the dioecious male natural plant “Xiong Zhu No.8” in China is a dominant gene controlling natural astringency and therefore has the potential to be used as a breeding parent in the genetic improvement of complete persimmon.