新疆沙漠桑树光合特性日变化的研究  

A Study on the Photosynthetic Specialty about Mulberry in Xinjiang Desert

作　　者：殷工 徐立[2] 买买提依明[1,3] 夏庆友[2] 吴丽莉 米日古丽 印玉萍 闫海龙[4] 曾凡江[4] 

机构地区：[1]新疆蚕业研究所 [2]西南大学蚕学与系统生物学研究所 [3]西南大学蚕学与系统生物学研究所,重庆400716 [4]中国科学院新疆生态与地理研究所

出　　处：《中国农学通报》2008年第8期257-261,共5页Chinese Agricultural Science Bulletin

基　　金：农业部948滚动下项目"蚕桑特殊资源引进与利用研究"部分研究内容。

摘　　要：沙漠桑树净光合速率的日变化在强光、高温、干燥的晴天呈双峰曲线,沙漠桑树的净光合速率和气孔导度较低,沙漠桑树的光合速率与气孔导度呈极显著相关关系,光合作用受叶片内部气孔活动状态、蒸腾速率和外界空气温度、空气相对湿度等因子的影响。The diurnal variation of photosynthesis for leaves of mulberry in desert had been studied under the natural conditions.The results were as follow：when it is strong photic,hyperthermal and droughty,the curves of diurnal variations of net photo-synthetic rate（Po） had two peaks.Po and stomatal conductance（Cs） are a little low.Po had a significant correlation with Cs.It was known that the photosynthesis in leaves was influenced by activity of stomatal factors,transpiration rates,external air temperature and relative humidity and so on.

关 键 词：沙漠桑树 光合特性 日变化 

分 类 号：S792.95[农业科学—林木遗传育种]