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当前位置: 首页 > 文章 > 椰子间作可可下可可光合日变化与环境因子的关系 热带农业科学 2017,37 (2) 1-4
Position: Home > Articles > Relationship between Diurnal Changes of Photosynthesis of Theobroma cacao and Environmental Factors in Coconut Plantation Intercropped with Cacao Chinese Journal of Tropical Agriculture 2017,37 (2) 1-4

椰子间作可可下可可光合日变化与环境因子的关系

作  者：
赵溪竹;李付鹏;秦晓威;朱自慧;赖剑雄
单  位：
中国热带农业科学院香料饮料研究所/农业部香辛饮料作物遗传资源利用重点实验室
关键词：
可可;椰子;间作;环境因子;日变化;光合特性
摘  要：
研究椰子间作可可下的可可光合速率(Pn)和环境因子日变化,探讨间作可可Pn与环境因子的关系,为优化可可栽培技术提供理论依据。结果表明,间作和单作可可Pn日变化均呈双峰曲线,有光合"午休"现象。环境因子与Pn的相关性均不显著(p>0.05),间作和单作可可环境因子对Pn的直接作用均为TL>RH>PAR>Ta,对间作可可Pn的影响是PAR、TL和Ta等相互作用的结果。光合有效辐射是影响间作可可Pn的主要环境因子。在可可的栽培管理中,应发挥主导环境因子的作用。
译  名：
Relationship between Diurnal Changes of Photosynthesis of Theobroma cacao and Environmental Factors in Coconut Plantation Intercropped with Cacao
作  者：
ZHAO Xizhu;LI Fupeng;QIN Xiaowei;ZHU Zihui;LAI Jianxiong;Spice and Beverage Research Institute, CATAS/Ministry of Agriculture Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops;
关键词：
Theobroma cacao;;coconut;;intercropping;;environmental factors;;diurnal changes;;photosynthesis
摘  要：
The diurnal changes of net photosynthetic rate(Pn) of Theobroma cacao and the environmental factors were measured in the coconut plantations intercropped with cocoa to analyze the relationship between diurnal changes of Pn and environmental factors in a view to providing theoretical basis for optimization of cocoa cultivation under coconut plantation.The results indicated that the diurnal changes of Pn of cocoa in intercropping and monoculture showed a double-peak curve with a slight "midday depression of photosynthesis".There was no significant correlation between environmental factors and the Pn(p>0.05).The direct impact of the environmental factors to Pn was in the order of leaf temperature(TL)> relative humidity(RH) > photosynthetic active radiation(PAR) > atmospheric temperature(Ta) in intercropping and monoculture.The impact of the environmental factors on Pn of the intercropped cacao was the result of the interactions of PAR, TL and Ta.PAR was the dominant environmental factor affecting the Pn of the intercropped cacao.In cocoa cultivation management, high attention should be paid to the role of dominant environmental factors.

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