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重庆是我国14个油茶重点分布省市之一,油茶发展潜力巨大.通过实地调查秀山、酉阳、彭水和梁平4个县的36个油茶林分布,实测235株油茶单株,初步选出63株优树.油茶优树分布在海拔500 m以下的占56%,500～800 m的占27%,800 m以上的占17%.优树年龄在30年以下的占13%,30～60年的占58%,60年以上的占29%.油茶优树果实颜色主要有青色、红色2种,其中青果占35%,红果占65%.单位冠幅面积产果量为1～2 kg的占41%;2～4 kg的占37%;4 kg以上的占22%,最高单位冠幅面积产量达7.24 kg.运用灰色关联分析,筛选出关联度值在0.6以上的5株油茶,可作为优良单株.
Chongqing is one of 14 key oil and tea provinces in China, and there is great potential for the development of Camellia oleifera.According to the distribution of 36 Camellia oleifera Linn in four counties of Xiushan, Youyang, Pengshui and Liangping, we measured 235 Camellia oleifera plants, and initially selected 63 trees.Yellow tea trees are distributed in 56% below 500 m altitude, 27% in 500 ~ 800 m, 17% above 800 m, 13%, 30 ~ 60% for 58%, 60% for more than 29%. Camellia oleifera fruit color is mainly cyan, red 2 kinds, of which 35% of green fruit, red fruit accounted for 65% unit crown area of fruit yield of 1 to 2 kg, accounting for 41%; 2 ~ 4 kg, accounting for 37%; 4 kg, accounting for 22%, the highest unit yield of crown area of 7.24 kg.Combined with the gray correlation analysis, screening associated value of more than 0.6 Camellia oleifera , Can be used as excellent single plant.