赤霞珠葡萄光合生理生态特性的研究  

Study of Photosynthetic Physiological Characteristics of Vitis vinifera

作　　者：房林[1] 张振文[1,2] 贾媛媛[3] 岳泰新[1] 

机构地区：[1]西北农林科技大学葡萄酒学院,陕西杨凌712100 [2]陕西省葡萄与葡萄酒工程技术研究中心,陕西杨凌712100 [3]西北农林科技大学生命科学学院,陕西杨凌712100

出　　处：《北方园艺》2010年第19期8-12,共5页Northern Horticulture

基　　金：国家现代农业产业技术体系建设专项资金资助项目(nycytx-30-zp-04)

摘　　要：利用Li-6400便携式光合作用测定系统对杨凌地区赤霞珠葡萄的生理生态特性进行研究,探讨葡萄不同节位叶片不同季节光合作用和蒸腾作用的动态规律,并揭示其主要影响机理。结果表明：不同节位叶片净光合速率在5-9月份中呈典型的单峰曲线,5月份时光合速率最大值出现在第6节位,随着时间推移这一峰值逐渐向高节位移动。从整个生长季节来看,在光合有效辐射（PAR）人为恒定的情况下气孔导度（Gs）是影响叶片净光合速率（Pn）最重要的生理因子。在5-9月份不同节位叶片蒸腾速率（Tr）变化呈现单峰曲线,整个生长季Tr与叶片大气水汽压亏缺（VpdL）、气孔导度（Gs）的相关性均比较显著,说明叶片VpdL、Gs是影响葡萄叶片蒸腾速率的主要因子。The variation of the relationship between Pn and physioecological factors of the Vitis vinifera L.cv cabernet sauvignon were studied with LI-6400 portable photosynthesis system at different leaf position in different times.The results showed that,the Pn of cabernet sauvignon was single peak curve from May to September at different leaf position,the biggest Pn was the 6th leaf position at May,and peak was moving to the up position leaves with the time.The relationship between Pn of different leaves positon and mainly physioecological factors was very close under the same treatments with PAR.Pn had the greatly significant positive correlation with Gs of leaves.The Tr of Cabernet Sauvignon was single peak curve from May to September at different leaf position,Tr had the significant positive correlation with VpdL and Gs,that was to say the VpdL and Gs were main factors effect the Tr.

关 键 词：葡萄 净光合速率 生态特征 

分 类 号：S663.1[农业科学—果树学]