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AbstractIn fruit enlargement, colouring and maturity period, the changes of photosynthetic characteristics and chlorophyll contents in “Red Globe” grape were studied under delayed cultivation in greenhouse in alpine region. The results showed that the diurnal variation of Pn appeared as double-peak curve and there was a “noon break” phenomenon in all phenophases. The peak and average value of diurnal Pn reduced gradually from fruit enlargement, colouring to maturity period. The “noon break” phenomenon in fruit enlargement and maturity period was mainly caused by non-stomatal limitation, but that in colouring period was mainly caused by stomatal limitation. Delayed cultivati on in greenhouse could remarkably increase WUE of grape, which was more effective when the temperature was low in winter. The contents of Chla, Chlb and Chl(a+b) were wholly ordered as: enlargement period＞colouring period＞maturity period, and the content of Chlb reduced significantly in maturity period. There was a significant positive relationship between Pn and Chl b content.
文章编号： 0258_7106 (2016) 01_0018_15 中图分类号： P618.41 文献标志码：A
**通讯作者耿新霞， 女， 1979年生， 助理研究员， 成矿规律研究方向。 Email： gen email@example.com
YANG Jiang-shan, CHANG Yong-yi.Photosynthetic characteristics of “Red Globe” grape under delayed cultivation in greenhouse in alpine region[J].杂志名称,2013,(4):124-128