中国农业科技导报2016，Vol.18Issue(5)：157-163,7.DOI:10.13304/j.nykjdb.2015.755
保水剂对烟草光合特性和叶绿素荧光参数的影响
Effect of Water Retaining Agent on Photosynthetic Characteristics and Chlorophyll Fluorescence Parameters of Tobacco
摘要
Abstract
This paper studied the effects of different dosage of water retaining agent on growth parameters,chlorophyll content,photosynthetic characteristics and chlorophyll fluorescence parameters in tobacco by pot experiments.The results showed that:the application of appropriate amount of water retaining agent could significantly increase the contents of growth index,chlorophyll a,chlorophyll b and total chlorophyll in tobacco.The net photosynthetic rate (Pn),transpiration rate (Tr),stomatal conductance (Gs) and water use efficiency (WUE) of the treated tobacco increased firstly and then decreased with the application quantity growing of water retention agent.Results showed that the effect of water retaining agent on tobacco photosynthetic characteristics was obvious,it could improve tobacco photosynthetic capacity,but over usage would be unvaverable for improving tobacco photosynthetic characteristics.The treated tobacco chlorophyll fluorescence parameters Fv/Fm,ΦPSII and qP increased firstly and then decreased slightly,while the NPQ showed a down trend.Of all treatments,the effect of T2 (3 g/strain) was the best,its photosynthetic capacity was the strongest,and the treated tobacco had better ability of self protection and adjustment.关键词
保水剂/烟草/光合特性/叶绿素荧光参数Key words
water retaining agent/tobacco/photosynthetic characteristics/chlorophyll fluorescence parameters分类
农业科技引用本文复制引用
陈芳泉,邵惠芳,贾国涛,许自成,黄五星,范艺宽,杜修智,张慢慢,赵蓉蓉..保水剂对烟草光合特性和叶绿素荧光参数的影响[J].中国农业科技导报,2016,18(5):157-163,7.基金项目
河南省烟草公司科技攻关项目(HYKJ 201405)资助. （HYKJ 201405）
