紧凑型小麦冠层叶片对籽粒的影响  

Effects of Different Functional Leaves on Grain of Compact-type Wheat

作　　者：薛香[1] 郜庆炉[1] 李建伟[1] 

机构地区：[1]河南科技学院,河南新乡453003

出　　处：《江西农业学报》2010年第2期19-20,23,共3页Acta Agriculturae Jiangxi

基　　金：河南省自然科学基金(0411032800;0511030900);河南省教育厅科技攻关项目(2006210013)

摘　　要：为了研究紧凑型小麦冠层叶片对籽粒的影响,选用紧凑型小麦高优503、郑麦004、济麦20为材料,对小麦冠层叶片的叶绿素含量、光合速率及不同剪叶处理籽粒灌浆期的千粒重进行测定。结果表明:紧凑型小麦冠层叶片叶绿素含量表现为旗叶、倒2叶>倒3叶;光合速率表现为旗叶>倒2叶>倒3叶;旗叶对强势粒和弱势粒的影响最大,冠层叶片对强势粒的影响是旗叶、倒3叶>倒2叶,而对于弱势粒则是旗叶>倒3叶、倒2叶。In order to study the effects of different functional leaves on the grain of compact - type wheat, the photosynthesis effi- ciency, chlorophyll content of different functional leaves, and 1000 - grain weight in different leaf - cutting treatments of compact - type wheat varieties Gaoyou 503, Zhengmai 004 and Jimai 20 were measured. The results were as follows： the chlorophyll content in the flag leaf and backward second leaf was more than that in the backward third leaf; the photosynthesis efficiency revealed the following trend： flag leaf 〉 backward second leaf 〉 backward third leaf; the flag leaf had greater impacts on vigorous grain and weak grain. The effect of different functional leaves on vigorous grain showed the following order： flag leaf, backward third leaf 〉 backward second leaf, while that on weak grain had the following order： flag leaf 〉 backward third leaf and backward second leaf.

关 键 词：紧凑型小麦 冠层叶片 籽粒 叶绿素含量 光合速率 

分 类 号：S512.1[农业科学—作物学]