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当前位置: 首页 > 文章 > 霜霉病菌侵染对黄瓜叶片光合作用的影响 上海农业学报 2010,26 (3) 11-13
Position: Home > Articles > Effect of downy mildew infection on photosynthesis of cucumber leaves Acta Agriculturae Shanghai 2010,26 (3) 11-13

霜霉病菌侵染对黄瓜叶片光合作用的影响

作  者：
丁小涛;金海军;张红梅;余纪柱
单  位：
上海市设施园艺技术重点实验室上海市农业科学院园艺研究所
关键词：
黄瓜;霜霉病;光合作用;叶绿素含量;叶面积;气体交换
摘  要：
研究了温室条件下不同类型黄瓜感染霜霉病后不同发病程度叶片单位叶面积质量、气体交换参数、相对叶绿素含量的变化。结果表明:黄瓜光合系统对霜霉病菌的侵染特别敏感,以欧洲迷你型敏感性较为突出;轻度染病后单位叶面积质量明显下降,净光合速率、气孔导度、蒸腾速率、相对叶绿素含量明显降低,发病程度越高,降低越明显;非气孔因素可能是感病黄瓜叶片光合降低的主要原因之一。
译  名：
Effect of downy mildew infection on photosynthesis of cucumber leaves
作  者：
DING Xiao-tao,JIN Hai-jun,ZHANG Hong-mei,YU Ji-zhu~* (Shanghai Key Lab of Protected Horticultural Technology,Horticultural Research Institute, Shanghai Academy of Agricultural Sciences,Shanghai 201106,China)
关键词：
Cucumber;;Downy mildew;;Photosynthesis;;Chlorophyll content;;Leaf area;;Gas exchange
摘  要：
Plants of different-type cross combinations in cucumber were infected with downy mildew and then their diseased leaves were studied under greenhouse in terms of per unit leaf area quality,gas exchange parameters and relative chlorophyll content.The results showed that the photosynthetic system of cucumber was sensitive to infection of downy mildew,and the European mini-cucumber cross combination was comparatively prominent in sensitivity;After slightly infected,the leaves declined obviously in per unit leaf area quality, net photosynthetic rate,stomatal conductance,transpiration rate and relative chlorophyll content,and the heavier the infection,the more evident the declines;Non-stomatal factor could be one of the main reasons of the photosynthesis decline of the diseased leaves.

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