不同灌溉量对膜下滴灌辣椒叶片叶绿素荧光参数的影响  

Effects of Different Irrigation Quantity on Chlorophyll Fluorescence Parameters of Pepper Leaves under Drip Irrigation with Plastic Film Mulch

作　　者：张玲丽[1,2] 颉建明[1,2] 刘佳[1,2] 程凤林[1,2] 

机构地区：[1]银川科技职业学院,宁夏永宁750105 [2]甘肃农业大学农学院,甘肃兰州730070

出　　处：《安徽农业科学》2012年第36期17457-17459,共3页Journal of Anhui Agricultural Sciences

基　　金：国家科技支撑计划项目(2007BAD88B07)

摘　　要：[目的]为了找出对制干辣椒美国红最适宜的水分灌溉梯度。[方法]在膜下滴灌条件下,研究了不同灌溉量对辣椒叶片叶绿素荧光参数日变化的影响。[结果]晴天自然光下PSⅡ光化学效率(Fv/Fm)、实际光化学效率(ФPSⅡ)、光化学猝灭系数(qP)上午随着温度的升高和光照强度的增加呈下降趋势,在12:00～14:00之间降至最低点,16:00以后再缓慢上升,而非光化学猝灭系数(NPQ)则相反。[结论]在各项荧光参数指标表现良好的情况下,可以选择300、375 m3/hm2灌水梯度。[Objective] The research aimed to find out the most suitable water irrigation gradient of dried chilli American red.[Method]The effects of different irrigation quantity on chlorophy Ⅱfluorescence parameters of pepper leaves with different light intensities under drip irrigation were studied.[Result]Sunny natural light PS Ⅱ photochemical efficiency（Fv/Fm）,actual photochemical efficiency（ФPSⅡ）,photochemical quenching（qP） with the increase of temperature and light intensity on the morning showed a downward trend,bottoming out in 12：00-14：00,and rose slowly after 16：00.But photochemical quenching NPQ showed the opposite.[Conclusion] Irrigation gradient of 300,375 m3 per hetare was chosen in the case of the good performance of the various fluorescence parameters.

关 键 词：膜下滴灌 制干辣椒 叶绿素荧光参数 日变化 

分 类 号：S275.6[农业科学—农业水土工程]