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园艺学报 ›› 2003, Vol. 30 ›› Issue (5): 568-570.

• 研究报告 • 上一篇    下一篇

设施栽培条件下葡萄盛花期的光合特性

刘廷松*;李桂芬**   

  1. (山东省酿酒葡萄科学研究所, 济南250100)
  • 收稿日期:2003-01-10 修回日期:2003-05-07 出版日期:2003-10-25 发布日期:2003-10-25

Some Photosynthetic Characteristics of Blooming Grape in Protected Cultivation

Liu Tingsong ;Li Guifen   

  1. ( Shandong Vine and Wine-making Institute , Ji'nan 250100 , China)
  • Received:2003-01-10 Revised:2003-05-07 Online:2003-10-25 Published:2003-10-25

摘要: 对设施栽培条件下‘红双味’葡萄花期净光合速率(Pn) 日变化规律, 设施内各生态因子,尤其是光照强度和CO2 浓度对葡萄光合作用的影响进行了研究。晴天栽培设施内葡萄叶片的Pn 日变化呈明显的双峰曲线, 阴天时葡萄叶片Pn 的日变化趋势主要决定于光照强度的日变化。晴天的Pn 明显高于阴天。研究葡萄叶片Pn 对光照强度和CO2 浓度的响应曲线得出, 葡萄叶片的光饱和点为1000μmol·m-2·s -1 , 光补偿点为21.3μmol·m-2·s -1 , CO2 饱和点为700μL·L -1 , CO2 补偿点为54.6μL·L -1

关键词: 葡萄, 设施栽培, 净光合速率(Pn)

Abstract: The research on the daily variation of Pn of blooming grape was conducted in protected cultivation.Meanwhile , the effects of the main ecological factors such as PAR and CO2 concentration on Pn were studied. The results showed that the daily variation of the Pn appeared to be a marked double-peak curve in the sunny day. The daily variation of Pn of grape was chiefly decided by the daily variation of PAR in the cloudy day. The Pn in the sunny day was markedly higher than that of in the cloudy day. The response curve of Pn to PAR showed that the light saturation point was 1000μmol·m-2·s -1 and the light compensation point was 21.3μmol·m-2·s -1 . The response curve of Pn to CO2 concentration showed that the CO2 saturation point was about 1700μL·L - 1and the CO2 compensation point was 54.6μL·L - 1 .

Key words: Grape, Protected cultivation, Photosynthesis

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