矮化修剪对龙眼成熟期间光合特性和品质产量的影响  

Effects of Dwarf-pruning on Photosynthesis,Quality and Yield of Longan Plants

作　　者：邓朝军[1,2] 许奇志 蒋际谋[1,2] 郑少泉 DENG Chao-jun;XU Qi-zhi;JIANG Ji-mou;ZHENG Shao-quan(Fruit Research Institute, Fujian Academy of Agricultural Science, Fuzhou, Fujian;Fujian Breeding Engineering Technology Research Center for Longan and Fuzhou, Fujian 350013, China)

机构地区：[1]福建省农业科学院果树研究所,福建福州350013 [2]福建省龙眼枇杷育种工程技术研究中心,福建福州350013

出　　处：《福建农业学报》2018年第3期269-273,共5页Fujian Journal of Agricultural Sciences

基　　金：农业部物种品种资源保护(热带作物)项目(151721301354051701);农业部物种品种资源保护费项目(111721301354052009);国家农作物种质资源共享服务平台(NICGR2017-054);福建省农业科学院科技创新团队建设项目(STIT2017-1-4);莆田市科技计划项目(2015N1001)

摘　　要：探讨密闭成龄‘立冬本’果园的龙眼树矮化回缩修剪后,果实成熟阶段的叶片光合特性、环境因子及品质产量的变化情况。结果表明,与对照相比,矮化修剪整体提高了龙眼树冠内部的光照和温度,相对湿度稍下降;极显著提高了叶片的净光合速率、蒸腾速率和气孔导度,降低了胞间CO_2浓度;显著提高了树冠上层果实的单果重和可溶性固形物含量,显著提高了树冠內膛果实的可溶性固形物含量,株产无显著差异。Dwarf-pruning on Lidongben longan plants at a closed orchard was carried out to study the changes on the photosynthetic characteristics of the plants at fruit maturing stage,the associated environmental factors,and the fruit quality and yield at harvest.After pruning,the light intensity and temperature on the tree crowns increased,and the relative humidity decreased slightly,while the net photosynthetic rate,transpiration rate and stomatal conductance of the leaves significantly increased,but the intercellular CO2 decreased.The single fruit weight and the soluble solids of the fruits on the upper crowns,as well as the soluble solids of the fruits in the crown interior,increased significantly.However,no significant difference on fruit yield per plant was observed with the pruning.

关 键 词：龙眼 矮化修剪 光合作用 品质 

分 类 号：S667.2[农业科学—果树学]