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【目的】研究帕米尔高原设施葡萄延晚栽培叶片光合作用,探讨设施葡萄延晚栽培生理生态特性,指导设施内环境调控,建立高效优质栽培模式。【方法】在设施延晚栽培条件下,以红地球、克瑞森、木纳格、秋黑和里扎马特葡萄为试材,采用英国PP-system公司TPS-2光合作用系统测定并研究葡萄叶片光合作用参数的日变化。【结果】延晚栽培葡萄叶片光合作用存在明显的午休现象,午休过程中,气孔导度下降,胞间CO2浓度略微升高;各品种光能利用效率在19:00至21:00较白天有所提高,木纳格光能利用率高于其他品种;克瑞森、木纳格和里扎马特09:00左右气孔导度较高。【结论】延晚栽培葡萄木纳格光合作用较强;光合午休同时存在着气孔限制和非气孔限制两类因素;克瑞森夜间具有较高的呼吸速率,木纳格和里扎马特次之。
【Objective】 The purpose of this study was to study the photosynthesis of late grapes in grafting of Pamirs to investigate the late ecophysiological characteristics of grapes and to guide the regulation of the environment inside the facilities and to establish a high-quality and high-quality cultivation pattern. 【Method】 Under the conditions of delayed cultivation, the red earth, Creussen, Minagge, Qiuhe and Rizmat grape were used as test materials, and the photosynthesis system of TPS-2 from PP-system was used to measure and study Diurnal Changes of Photosynthesis Parameters in Grape Leaves. 【Result】 The results showed that there was a significant midday break in photosynthesis of late grapes. During the lunch break, the stomatal conductance decreased and the intercellular CO2 concentration increased slightly. The light utilization efficiency of all cultivars varied from 19:00 to 21:00 As a result, the utilization rate of Minagog’s light energy is higher than other varieties; the Cretaceous, Minag and Rizzmat’s high stomatal conductance at 09:00. 【Conclusion】 The photosynthesis of late-growth grape climber was more vigorous. There were two kinds of factors: stomatal limitation and non-stomatal limitation at midday photosynthesis. Creussen had high respiratory rate at night, It