Changes in photosynthesis and chlorophyll fluorescence in two soybean (Glycine max) varieties under NaCl stress

作     者：Bin Luo Cheng Wang Xiaodong Wang Han Zhang Yanan Zhou Wensen Wang Peng Song 

作者机构：Beijing Research Center for Information Technology in AgricultureBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China National Engineering Research Center for Information Technology in AgricultureBeijing 100097China State Grid Shenyang Electric Power Supply CompanyShenyang 110866China College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430074China 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2021年第14卷第3期

页      面：76-82页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was financially supported by the Key-Area Research and Development Program of Guangdong Province(Grant No.2019B020214005) Science and Technology Innovation Special Construction Funded Program of Beijing Academy of Agriculture and Forestry Sciences(Grant No.KJCX20170418) the National Natural Science Foundation of China(Grant No.21974012) 

主　　题：biomass chlorophyll fluorescence parameters NaCl stress photosynthetic parameters soybean 

摘      要：Traditional detection methods of crop information are often destructive and low *** this study,a new evaluation method was developed based on photosynthesis and chlorophyll *** analysis of the changes under NaCl stress during the seedling stage of two varieties,the salt resistance mechanism of soybeans was explored and a non-destructive stress-recognition method was *** this experiment,two soybean varieties were treated with one of four levels of NaCl stress:CK(0 mmol/L),LS(50 mmol/L),MS(100 mmol/L),and HS(150 mmol/L),for 15 *** normal functions of the photosynthetic system of soybeans were enhanced under LS NaCl stress,but were inhibited under HS NaCl ***,net leaf photosynthetic rate(Pn),stomatal conductance(gs),intercellular carbon dioxide concentration(Ci),transpiration rate(Tr),chlorophyll fluorescence parameters Y(II)and PSII ***,in contrast to the findings of other studies on the influence of severe drought stress on soybean for long periods in which non-photochemical quenching coefficient(qN)decreased,this parameter increased under salt stress in *** results demonstrate that the method developed is a promising tool for rapid and non-destructive detection of soybean photosynthetic responses under salt stress in the field.