| 秦岭北麓猕猴桃主栽品种光合特性的研究 |
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| 引用本文： | 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 |
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| 作者姓名： | 袁继存 张林森 李丙智 龙周侠 姚春潮 刘旭锋 |
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| 作者单位： | 西北农林科技大学园艺学院,陕西杨陵,712100 |
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| 基金项目： | 科技部支撑计划(2007BAD79B01-08); 农业部行业计划(nyhyzx07-024) |
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| 摘 要： | 以秦岭北麓猕猴桃主栽品种红阳、楚红、金魁、徐香、金香和海沃德为试材,研究了田间条件下的光合特性。结果表明:6个猕猴桃品种的光合速率(Pn)、蒸腾速率(Tr)和气孔导度(Gs)的日变化均为双峰曲线,在10:00时出现第一峰值,红阳、楚红、金魁、徐香、金香和海沃德的光合速率(Pn)分别为13.4、16.8、11.4、12.5、12.3和11.6μmol.m-2.s-1,12:00-14:00时出现午休,在14:00时到达低谷,光合速率(Pn)分别为10.2、10.9、4.6、9.1、8.3和7.2μmol.m-2.s-1,16:00时出现第二峰值,光合速率(Pn)分别为11.8、11.9、5.3、11.4、11.3和8μmol.m-2.s-1。美味猕猴桃品种(金魁、徐香、金香和海沃德)的Ci日变化曲线呈"W"型,中华猕猴桃品种(红阳和楚红)的Ci日变化曲线呈"V"型。对不同猕猴桃品种光响应曲线的研究表明,各品种皆是喜光植物,楚红的耐荫性最强,徐香最弱,楚红、红阳、金魁的光能利用范围较大,金香、海沃德居中,徐香最窄。
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| 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 |
Photosynthetic Characteristics of the Main Kiwifruit Cultivars in the Northern Foot of Qinling Mountains |
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| YUAN Ji-cun,ZHANG Lin-sen,LI Bing-zhi,LONG Zhou-xia,YAO Chun-chao,LIU Xu-feng. Photosynthetic Characteristics of the Main Kiwifruit Cultivars in the Northern Foot of Qinling Mountains[J]. Journal of Northwest Forestry University, 2011, 26(1): 39-42,76 |
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| Authors: | YUAN Ji-cun ZHANG Lin-sen LI Bing-zhi LONG Zhou-xia YAO Chun-chao LIU Xu-feng |
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| Affiliation: | YUAN Ji-cun,ZHANG Lin-sen,LI Bing-zhi,LONG Zhou-xia,YAO Chun-chao,LIU Xu-feng(College of Horticulture,Northwest A&F University,Yangling,Shaanxi 712100,China) |
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| 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,Ch... |
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| Keywords: | Kiwifruit photosynthetic rate transpiration rate stomata conductance intercellular CO2 concentration diurnal variation |
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