不同遮荫处理对大叶黄杨的生理响应  

Effects of Different Shading Treatments on the Euonymus japonicus

作　　者：李云峰[1] 

机构地区：[1]山西农业大学林学院,山西太谷030801

出　　处：《天津农业科学》2013年第3期98-100,共3页Tianjin Agricultural Sciences

摘　　要：以大叶黄杨为试材,研究了不同时期和不同程度遮荫处理,对苗高、地径和叶片中叶绿素含量的影响。结果表明,在70%,50%,30%和全光照遮荫条件下,大叶黄杨苗高、地径生长量以50%遮荫处理影响最为明显,苗高、地径生长量明显大于其他光照条件;在整个生长过程中,各处理叶绿素含量增加速度均高于全光照处理,其中在70%遮荫程度下叶绿素含量最高。叶绿素含量排序为:70%遮荫处理>50%遮荫处理>30%遮荫处理>全光照。Effect of different periods and different shading treatments on the chlorophyll content, height of seeding, diameter growth of Euonymus japonicus were researched. The results showed that in 70%, 50%, 30% shading treatments and full exposure treatment, the Euonymus japodicus growth in the 50% shading treatment was the most apparent and the growth was apparently larger than growth in full exposure treatment, in 70% and 30% shading treatments. In the whole growing process, different treatments could increase the chlorophyll contents, and were higher than full exposure treatment, and in the 70% shading treatment, the chlorophyll content was the highest. The chlorophyll contents orders were：70% shading treatment 〉 50% shading treatment 〉 30% shading treatment 〉 full exposure.

关 键 词：叶绿素 苗高 地径 遮荫 生理响应 

分 类 号：S718.43[农业科学—林学]