高温胁迫对设施番茄光合作用特性的影响  

Effect of High Temperature Stress on Photosynthesis Characters of Tomato

作　　者：张富存[1] 张波[1] 王琴[1] 杨再强[1] 张静[1] 

机构地区：[1]南京信息工程大学江苏省农业气象重点实验室,南京210044

出　　处：《中国农学通报》2011年第28期211-216,共6页Chinese Agricultural Science Bulletin

基　　金：公益性行业(气象)科研专项GYHY(QX()201006028);公益性行业(气象)科研专项GYHY(QX()200906023);江苏省科技支撑项目"江苏省设施农业气象灾害预警及防御技术研究"(BE2010734)

摘　　要：根据高温对番茄的反应,于2010年设计人工气候箱环境控制试验,系统研究高温30~36℃对番茄坐果期叶片光合作用特性的影响,以25℃为对比（CK）。结果表明：在30~36℃高温范围内,随温度升高,番茄的光补偿点升高,而光能初始利用率、光饱和点、最大光合作用速率、蒸腾速率逐渐降低,且远远低于对比,相关分析表明在高温30~36℃范围内,番茄的光合速率与光合有效辐射、气孔导度、蒸腾速率、相对湿度呈极显著的正相关（P〈0.01）,与气温呈显著的负相关,高温30~36℃持续24 h会严重影响番茄的光合作用、蒸腾作用等生理活动。According to the reaction of tomato plant to high temperature,experiments with different high temperature at 30-36℃ by used artificial climate chamber were carried in 2010 to study the effect of high temperature on the photosynthesis characteristic of tomato leaves during fruiting period.The results showed that in 30-36℃ high temperature stress,with the increase temperature,the light compensation point of tomato was increased while the light energy initial utilize effectiveness,light saturation point,maximum photosynthesis rate and transpiration rate were decreased.Correlation analysis showed that photosynthesis rate was positive correlation to photosynthetic active radiation,stomata conduction,transpiration rate and relative humidity,while was negative relative to air temperature.It was that continuous high-temperature at 30-36℃ range more than 24 h would seriously affect the tomato photosynthesis physiological activities.

关 键 词：高温 番茄 温室 光合作用 气象灾害 

分 类 号：S625[农业科学—园艺学]