西北林学院学报2011，Vol.26Issue(1)：39-42,76,5.
秦岭北麓猕猴桃主栽品种光合特性的研究
Photosynthetic Characteristics of the Main Kiwifruit Cultivars in the Northern Foot of Qinling Mountains
摘要
Abstract
In order to improve the kiwifruit cultivation and management, the photosynthetic characteristics of the main kiwifruit cultivars measured in the northern foot of Qinling Mountains, such as Hongyang, Chuhong, Jinkui,Xuxiang, Jinxiang and Hayward were conducted. The results showed that the diurnal variation curves of net photosynthesis rate (Pn), transpiration rate (Tr) and stomata conductance (Gs) of six main varieties of kiwifruit were bimodal curves. The first maximum appeared at 10:00, the values of Pn of Hongyang, Chuhong, Jinkui, Xuxiang, Jinxiang and Hayward werel3.4, 16.8, 11.4, 12. 5, 12.3 and 11.6 μmol·m-2·s-1 , respectively. The midday depression occurred at 12:00-14:00, the minimun values of Pn at 14:00 were 10. 2, 10. 9, 4.6, 9.1, 8.3 and 7.2μmol · m-2 · s-1 , respectively. The second peak occurred at 16:00 with the Pn values of 11.8, 11.9,5.3,11.4,11.3 and 8μmol·m-2·s-1 respectively. The diurnal variation of concentration Intercellular CO2 (Ci)in the Actinidia deliciosa. cultivars (Jinkui, Xuxiang, Jinxiang and Hayward) were“W” type, while the Actinidia chinensis. cultivars (Hongyang and Chuhong) were “V” type. Six varieties of kiwifruit were all photophilous types. Cultiver Chuhong was the strongest in shading-tolerance and Xuxiang was the weakest. The range of the light energy utilization of Chuhong, Hongyang and Jinkui were widder than Xuxiang, while Jinxiang and Hayward were in the middle.关键词
猕猴桃/光合速率/蒸腾速率/气孔导度/胞间CO2浓度/日变化分类
农业科技引用本文复制引用
袁继存,张林森,李丙智,龙周侠,姚春潮,刘旭锋..秦岭北麓猕猴桃主栽品种光合特性的研究[J].西北林学院学报,2011,26(1):39-42,76,5.基金项目
科技部支撑计划(2007BAD79B01-08),农业部行业计划(nyhyzx07-024) （2007BAD79B01-08）
