不同栽植模式对骏枣叶片光合特征的季节性影响  

The Seasonal Effects of Different Planting Patterns on Photosynthetic Characteristics of Jujube Leaves

作　　者：王晶晶[1] 李铭[1] 高疆生[2] 陈奇凌[1] 郑强卿[1] 

机构地区：[1]新疆农垦科学院,新疆石河子832000 [2]塔里木大学植物科学学院,新疆阿拉尔843300

出　　处：《塔里木大学学报》2012年第3期31-35,共5页Journal of Tarim University

基　　金：兵团创新青年基金(2012CB024);国家973计划前期预研专项(2010CB134406);十二五国家科技支疆计划(2011BAD48B03)

摘　　要：以3a生骏枣(Zizyphus jujube cv. Jun zao)为试材,选取种植密度分别为17 775株/hm2、13 320株/hm2、4 995株/hm2和1665株/hm2的枣园,在5月、7月和9月份用CID-340光合分析仪测定枣树的净光合速率(Pn)和蒸腾速率(Tr),同时得出光能利用率(SUE)和水分利用效率(WUE)等光合参数,研究不同栽植密度对枣树叶片的光合特性的季节性影响。结果表明,不同栽植密度下骏枣叶片光合特性不同,M3的净光合速率、蒸腾速率高于其他各模式,且表现较高的和水分利用效率和光能利用率。同一模式下,各光合参数在骏枣的不同生长季节变化趋势不同。不同栽植密度对枣树树体光合作用有很大的影响。To study the seasonal effects of different planting density on the photosynthetic characteristics of jujube leaves, the three years old Zizyphus jujube cv. Jun zao was selected as test materials, with four planting densities 17,775 （M1）, 13,320（ M2）, 4,995 （M3） and 1,665 （M4） plants/ha. The In May, July and September, the net photosynthetic rate （Pn）, transpiration rate （Tr）, derived photosynthetic parameters of solar energy utilization efficiency （ SUE）, and water use efficiency （WUE） of the jujube leaves were measured by CID - 340 photosynthesis analyzer. The results showed that the photosynthetic characteristics of jujube under different planting densities were different. In M3, the Pn and Tr were higher than the others, and with a higher water use efficiency and solar energy use efficiency. The photosynthetic parameters of jujube in a different growing season showed different trend. Therefore, different planting density had a great influence on the jujube tree photosynthesis.

关 键 词：栽植密度 骏枣 光合特性 季节性 

分 类 号：S665.1[农业科学—果树学]