贵定云雾贡茶实生苗种群的分类特征

Classification Characteristics of Seedling Population of Guiding Yunwu Tribute Tea

为了解云雾贡茶的分类地位特征,以目前分布在贵定县云雾镇的人工栽培实生苗群体种为研究对象,对不同类群的云雾贡茶进行了分类鉴定。结果表明：采集的27份标本花器官均相同,叶片椭圆状披针形或倒卵状椭圆形,叶背面被贴伏柔毛,叶柄长3~4 mm,与茶树Camellia sinensis（L.）O.Ktze属同一种,但某些类群叶片结构与该茶的差异较大,可能是自然杂交或生境原因（长期栽培）引起的特征变异。云雾贡茶主要有3种叶片栽培表现型（大叶型、中叶型、小叶型）,且气孔构造相同,均只分布在叶片下表皮,差异表现为气孔大小和密度不同。

The artificial cultivation seedling populations of Yunwu tribute tea in Yunwu town,Guiding county were classified and identified to study its characteristics of classification status.The results show that the flower organ characteristics of 27 samples are all the same,the leaf shape is lanceolate with ellipticity or ellipticity with reverse egg shape,there are pubescenes on the back of leaves,the petiole length is about 3～4cm and Yunwu tribute tea belongs to Camellia sinensis basically,there are three main leaf phenotypes（big leaf,moderate leaf and small leaf） with the same stomatal structure,leaf stomas only distributes in lower epidermis and there are difference in stomatal size and density.