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本研究对茶树不同品种和不同品系的光合量、不同海拔高度的同品种光合量,以及海拔升高后茶树生化内含物的含量进行了测定,并对一些品种的光强、水份、温度等光合条件进行了分析。结果表明:茶树品种间的光合量值悬殊颇大,云大和福鼎相差20—30％;地理经度改变,不影响品种的光合值;同纬度海拔上升,光合量下降,但各品种降值有大小,如四川中叶种降幅小于福鼎;海拔升高,主要生化内含物先升后降,以1200M为转折点;环境因素中,光强随品种需要而异,云大耐强光辐射,而福鼎宜于在中等光辐射下行使光合作用。本文还对茶园产量极值、茶园选择品种和植茶海拔高度问题进行了探讨。
In this study, the photosynthetic rate of different varieties and different lines of tea tree, the photosynthetic rate of the same species at different altitudes, and the content of biochemical contents of tea plant after altitude elevation were measured. The effects of light intensity, water content, temperature Other photosynthetic conditions were analyzed. The results showed that there was a great difference in the photosynthetic rate among the tea varieties, with a difference of 20-30% between Yun Tai and Fuding. Geographic longitudes did not affect the photosynthetic value of the cultivars. Elevation increased with the latitude but decreased with photosynthesis, For example, in the middle part of Sichuan, the decline is smaller than that of Fuding; when the altitude is higher, the main biochemical content first increases and then decreases, with 1200M as the turning point; in the environmental factors, the light intensity varies with the variety, Fuding is suitable for moderate photosynthesis under the action of light. This article also discussed the extreme output of tea plantations, the varieties of tea plantations and the altitude of tea planting.