光照、水分对苹果梨叶片净光合速率日变化的影响  

Effects on Net Photosynthesis Rate through Illumination and Moisture of Pingguoli Leaves

作　　者：石岩 王亮[2] 刘冰雁 曲柏宏[3] 

机构地区：[1]长春经济技术开发区住房保障和公用事业服务中心,吉林长春130000 [2]延边朝鲜族自治州农业科学院,吉林龙井133400 [3]延边大学,吉林延吉133002

出　　处：《安徽农业科学》2013年第27期10917-10918,10955,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(30860169);吉林省教育厅科技计划项目(2006-05)

摘　　要：[目的]研究田间条件下果树的光合特性对提高果实产量、品质等具有重要的参考价值。[方法]以延边地区苹果梨树为试材,使用英国生产的LCi便携式光合仪,通过测定苹果梨叶片的各种光合作用参数,在田间条件下研究遮阴、叶片喷水栽培措施对苹果梨叶片净光合速率日变化的影响。[结果]遮阴、叶面喷水均可降低叶片蒸腾速率,减少叶片水分散失。[结论]遮阴、叶面喷水有效地缓解了"光午休"现象,提高净光合速率。[ Objective ] The study of Pn characteristics could provide the important reference for increasing the output and the quality. [ Meth- od] The Pingguoli tree in Yanbian area was chosen as the material to research the daily variation regularity of photosynthetic rate of Pingguoli leaves by shading and water spraying using LCi portable photosynthesis system which was produced in Britain. E Result ] Shading and water spraying Pingguoli leaves was possible to reduce the leaf blade transpiration rate and prevent the leaves＇ water from dissipating. [ Conclusion] Shading and water spraying Pingguoli leaves not only reduced ＂the midday rest＂ obviously, but also enhanced the net photosynthetic rate of Pingguoli.

关 键 词：苹果梨 遮阴 喷水 净光合速率 

分 类 号：S661.2[农业科学—果树学]