盐胁迫下不同AMF对棉花生长的影响及其综合效果评价

打开文本图片集

Abstract：[Objective]Thisstudyaimstoevaluate theefectsofdiferentarbuscularmycorhizalfungi（AMF）oncottongrowth undersalt stress，ndscreenforAMFstrains thatpromotecottongrowthmoreeficientlyundersaltstress[Methods]Usingthe main varietiesofZhongmian113andTahe2inXinjiangasmaterials，theeffectsofinoculationwithdifferentAMFoncoton sedling growthdryatercculation，gexangeparameers，trogen，osporus，otassicclationdK/a ratio were studied.Theoptimal strain was determined through acomprehensive evaluation method based onentropy weight. [Results]TheresultsshowedthatAMFinoculationsignificantlypromotedthegrowthofcotonseedlingsundersaltstre. Compared withcottonplant without AMFinoculation，theplantheightof Zhongmian113inoculatedwithdiferentAMFstrain significantly increased by 62.13%89.55% ，the dry matter mass per plant significantly increased by 122.58%-141.94% ，the root-shoot ratio decreased by 20.38%49.34% ，theaboveground water content increased by 8.40%-12.65% ，and the root water content increased by 9.78%-15.61% ；Compared with cotton plant without AMF inoculation，the plant height of Tahe2 inoculated with different AMF straub was significantly increased by 70.23%-103.88% ，the dry matter mass per plant was significantly increased by 80.95%-188.10% ，the root shoot ratio was reduced by 42.40%-59.28% ，the aboveground water content was increased by 5.88%-11.11% ，and the root water contentwas increased by 12.05%-18.51% .Inoculation of AMF enhanced theabsorptionofnitrogen，phosphorusandpotassumbycottn.Comparedwithnoinoculation，theK/Naratioinsotsof Zhongmian113and Tahe2increased by 53.81%-102.96% and 40.54%-122.10% ，respectively.The effects of inoculating diferentAMFshowed significantdiference.Thecomprehensivescoreresults showed thattheoptimalstrainofZhongmian113 was XJ04B，andtheoptimalstrainofTahe2wasXJO2.Conclusion]InoculationwithdiferentAMFcansignificantlyimprove thegrowth ofcotonseedlings undersalt stress，anddiferentstrainshavedierent performances inpromoting cottongrowth undersaltstressThisexperimentprovidesareferenceforscreeningefectiveAMFstrainsincotonundersaltstressenviroment. Keywords： arbuscular mycorrhizal fungi; salt stress; cotton; strain screening; entropy weight method

棉花是我国重要的经济作物，棉花产业的健康发展对我国农业经济有重要影响[。（剩余34760字）