不同温度对忽地笑光响应曲线及叶绿素荧光参数的影响  

Effects of Different Temperature on Light Response Curves and Chlorophyll Fluorescence Parameters of Lycoris aurea

作　　者：王婷[1] 邓波 张智 毛志远[1] 公维香 周坚[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]江苏骏马农林科技股份有限公司,江苏张家港215600

出　　处：《安徽农业科学》2013年第18期7739-7741,7799,共4页Journal of Anhui Agricultural Sciences

基　　金：国家林业公益性行业科研专项项目(201004056);江苏省林业三项工程项目(lysx[2010]13);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：[目的]研究不同温度对忽地笑光合作用和叶绿素荧光参数的影响.[方法]将盆栽忽地笑依次置于5、10、15、20、25、30℃的恒温培养箱内培养0.5h,选取忽地笑的成熟叶片进行光响应曲线的测量;将盆栽忽地笑置于5、10、15、20、25、30℃的恒温培养箱内黑暗培养0.5 h,选取成熟叶片测量各项叶绿素荧光参数.[结果]在25 ℃条件下,忽地笑净光合速率、表观量子效率、最大光化学效率最高,光补偿点最低,其次为20℃＞10℃＞15℃＞5℃,在30℃条件下净光合速率最低.[结论]忽地笑在20～ 25℃范围内光能利用率最高.它对光照要求不严,对弱光和强光均可有效利用,适应性较强.[Objective] The effects of different temperature on the photosynthesis and chlorophyll fluorescence parameters of potted Lycoris aurea were studied.[Method] After turned into the incubator under different temperature （5,10,15,20,25,30 ℃,respectively） for half an hour,the mature leaves of potted Lycoris aurea for light response curves were selected for measured with the Portable Gas Exchange Fluorescence System（Walz,GFS-3000） ; After potted Lycoris aurea were placed a constant temperature incubator（5,10,15,20,25,30 ℃,respectively） in the dark condition for half an hour,the chlorophyll fluorescence parameters were measured with a chlorophyll fluorometer （Walz,Junior-PAM）.[Result] Lycoris aurea get the highest net photosynthetic rate,apparent quantum yield,Fv/Fm and lowest light compensation point at 25 ℃,followed by 20 ℃ ＞ 10 ℃ ＞ 15 ℃ ＞ 5 ℃,and the net photosynthetic rate is lowest at 30 ℃.[Conclusion] Lycoris aurea have the maximum utilization of solar energy in the range of 20-25 ℃,and it is relaxed to light and has strong adaptability to live.Both weak light and strong light can be effectively used.

关 键 词：忽地笑(Lycoris aurea) 不同温度 光响应曲线 叶绿素荧光 

分 类 号：S567[农业科学—中草药栽培] Q945.79[农业科学—作物学]