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茶树为異花授粉作物,共有性繁殖系后代皆属自然杂种。因此,茶叶生产上栽培的有性繁殖系品种,均为复杂的群体品种。所謂群体品种,即是指分布在同一个茶区(包括自然区域和制茶区域)具有相似的生态特性和繁殖特性的品种群;而同一群体品种中又存在着某些經济性状显著不同的各个品种和品系。茶树群体分离选种,就是根据茶树的自然繁殖特性和我国茶叶生产上栽培品种的现状以及历来群众选种經验提出的。
Tea tree is cross-pollinated crops, common sexual offspring are offspring of natural hybrids. Therefore, the cultivation of sexual reproduction of tea varieties on the production are complex group of varieties. The so-called group of varieties that is distributed in the same tea area (including natural areas and tea-growing areas) have similar ecological characteristics and reproductive characteristics of the species group; and the same group of varieties there are some significant differences in economic traits Varieties and strains. Separation and selection of tea tree species, is based on the natural reproduction characteristics of tea and tea production in China on the status of cultivated varieties and the masses have always been the experience of selection.