水分对山茶花某些生理特性的影响

Influence of Water on Some Physiologieal Characteristics of Camellia

研完结果表明:山茶叶片的净光合速率随着盆土的含水量上升而提高。通过与金钟花、杜鹃花叶片蒸腾速率及叶内游离脯氨酸含量的比较研究表明:因山茶具有较厚的蜡质层,具有较低的蒸腾速率,但它具有较低的游离脯氨酸含量,故对水分胁迫的抗性较差。对自然界山茶群落生境的调查也发现较高的土壤含水量和空气湿度是其适生的生境。

A test was conducted of the influence of water on the development and growth of pot camellia in summer in 1990. The results are as follows: the net photosynsis ratio of camellia tends to increase with soil moisture; the transpiration ratio of camellia is lower with a layer of wax on the leaf surface than that of greenstem forsythia; the free Pro content of camellia is lower, which results in a poor water resistance, than that of azalea. The investigation of the biotope indicated that the stations with high air and soil moisture were suitable for growth of camellia.