黄金梨叶片净光合速率与生理生态因子的关系  

Relationship between Net Photosynthetic Rate and Its Physo-ecological Factors in Hwangkumbae

作　　者：晁新胜 齐红燕 康玉柱 王传印 王防震 CHAO Xinsheng;QI Hongyan;KANG Yuzhu;WANG Chuanyin;WANG Fangzhen(Heze administrative examination and lnvestigation Evaluation Center,Heze Shandong 274000;Dingtao Forestry Bureau of Heze City,Heze Shandong 274000;Heze Forestry Bureau,Heze Shandong 274000;Mudan Forestry Bureau of Heze City,Heze Shandong 274000)

机构地区：[1]菏泽市行政审批踏勘评审中心,山东菏泽274000 [2]菏泽市定陶区林业局,山东菏泽274000 [3]菏泽市林业局,山东菏泽274000 [4]牡丹区林业局,山东菏泽274000

出　　处：《山东林业科技》2020年第4期48-50,42,共4页Journal of Shandong Forestry Science and Technology

摘　　要：以5年生黄金梨树为试验材料,利用LI-6400便携式光合测定仪测定其叶片净光合速率(Pn)日变化,并探讨其与环境因子、生理因子的关系。研究发现,黄金梨叶片Pn日变化曲线呈双峰型,于11:00、14:00分别出现一次高峰,具有光合“午休”现象;PAR、RH是影响黄金梨叶片净光合速率的主要环境因子,Gs、Tr是起主要影响作用的生理因子。With Hwangkumbae mature leaves as experimental material,the use of LI-6400 its net photosynthetic rate(Pn)diurnal variation.The results showed that:Hwangkumbae diurnal variation of net photosynthetic rate of leaves bimodal curve,the first peak occurs at 11:00 and 14:00,respectively,in the afternoon,with a lunch break phenomenon,It is composed of stomatal and non-stomatal factors caused by two factors;It was PAR and Ca that affected the changes of Pn among the ecological factors,and Gs and RH played very important roles in the changes of Pn among the physiological factors.

关 键 词：黄金梨 环境因子 生理因子 

分 类 号：S718.43[农业科学—林学]