%0 Journal Article
%T Effect of the Different Concentrations of S3307 on Photosynthesis and Chlorophyll Fluorescence Parameters of Zinnia elegant Seedling Under High TemperatureStress<br>高温胁迫下不同浓度烯效唑对百日草幼苗光合作用和叶绿素荧光参数的影响
%A LI Ning-yi
%A HAN Xiao-fang
%A SONG Yan
%A <br>李宁毅
%A 韩晓芳
%A 宋妍
%J 吉林农业大学学报
%D 2012
%I 
%X In this study,Zinnia elegant plug seedlings with 3—4 leaves were used to analyze assimilation product distribution,photosynthesis,water use efficiency and chlorophyll fluorescence parameters under high temperature stress.The results showed that under high temperature stress,plant height of Zinnia elegant with different concentrations(10,20,30,40 mg/L)of S3307 were reduced and stem diameters were increased,however,dry weight of shoot and root,root-shoal ratio in dry weight were higher than those of the control,and photosynthetic rate and water use efficiency of those treatments were increased as well.The treatment of S3307 significantly slowed down the inhibition of high temperature stress on photosynthetic system Ⅱof seedlings,alleviated the decrease of maximum photochemical efficiency(Fv/Fm),actual photochemical efficiency under light(ΦPSⅡ),photochemical quench(qP)and the increase of no photochemical quench(NPQ) and prevented the damage of high temperature on photosynthetic apparatus.Among them,the treatment effect of 30 mg/L S3307 is the best.
%K chlorophyll fluorescence parameter<br>百日草
%K 烯效唑
%K 高温胁迫
%K 光合作用
%K 叶绿素荧光参数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=298920A27C9BAA22346FCA384240FAA4&jid=74C612B26EF38BF0D4C997E3F9E167A1&aid=D812A4F49570FC50509108453262E2E8&yid=99E9153A83D4CB11&vid=339D79302DF62549&iid=CA4FD0336C81A37A&sid=94C357A881DFC066&eid=F3090AE9B60B7ED1&journal_id=1000-5684&journal_name=吉林农业大学学报&referenced_num=0&reference_num=0