咸水灌溉对紫花苜蓿生物学性状的影响

·201025254-2572010－06－101974－。1971－。0500517。NaCl、、。。P＞0．05。。P＞0．05。S274．1A1000－70912010－0254－04TheInfluenceofSaltWaterIrrigationonAlfalfaBiologyCharactersQINWen-liLIUZhong-kuanLIUZhen-yuZHIJian-feiResourcesandEnvironmentInstituteofHebeiAcademyofAgricultureandForestrySciencesShijiazhuang050051ChinaAbstractThispaperstudiedtheeffectofsaltwaterirrigationonalfalfabiologycharactersundertheconditionofthesaltwaterexperimentofsevenlevels．Researchresultsshowedthatthealfalfaheightswereshorterinthefirstbranchstagefullbranchstageandfirstflowerstagewiththesaltconcentrationbecominghigher．Andwiththealfal-fabecameoldertheabilityofsalttolerancewasstronger．Inthefirstflowerstagethesaltwaterirrigationofhighsaltcontenthinderthegrowthofalfalfastronglybutthelowsaltcontentwaterhasweakactiontothegrowthofalfal-fa．Andthesternleafratiobecomebiggerandthequalitywaslowwhenirrigatedbyhighsaltcontentwater．Thelowsaltcontentwatercanhindertheregenerationspeedbuttheothernesscan＇treachthesignificantlevelP＞0．05．KeywordsAlfalfaSaltwaterirrigationBiologycharacterRegenerationspeed1。。、、、2－6。。、。“”。。。1。11．1。NaCl。720mg/kg1780mg/kg24500mg/kg25562．83mg/kg17．22mg/kg132mg/kg37．78mg/kgpH7．8814900mg/kg。32cm30cm。1Tab．1DesignofexperimentTreatmentNaCl/g/LNaClcontent1CK0223446586107121．2731。21。12．5kg。0．5gN46%、1gP2O546%、K2O60%1g。2008420。1cm100。。2。1．31．3．1、、。1．3．2、、。1．3．3、、。22．17。2、、。2NaCl、、。、、17P＜0．01。。12P＜0．01、。、。34P＜0．0134P＞0．054g/LNaCl6g/LNaCl。2．27。3。3NaCl。15、6、7P＜0．052、3、4P＞0．05。8g/LNaCl246g/LNaClP＞0．05。2Tab．2TheinfluenceofdifferentsaltlevelonplantheightTreatmenl/cmPlantheightFirstbranchstageFullbranchstageFirstflowerstaeMeanOtherness0．050．01MeanOtherness0．050．01MeanOtherness0．050．01117．707aA31．613aA43．540aA213．060bB29．640aA42．073abA311．510bcBC29．593aA41．173abA49．233cdCD25．407bB38．453bAB57．663deDE22．20cBC34．40cBC66．020deE19．40dC31．133edCD75．937eE18．80dC29．267dDLSD0．05=2．308LSD0．01=3．236LSD0．05=2．736LSD0．01=3．836LSD0．05=3．658LSD0．01=5．128。NoteFirstbranchstageLSD0．05=2．308LSD0．01=3．236FullbranchstageLSD0．05=2．736LSD0．01=3．836FirstflowerstageLSD0．05=3．658LSD0．01=5．128．256253Tab．3TheinfluenceofdifferentsaltlevelonstemdiametermmTreatment1Rep．12Rep．23Rep．3MeanOtherness0．050．0113．262．222．832．77aA22．872．352．842．69aA32．842．602．552．66aA42．222．522．612．45abA52．212．462．322．33bA62．222．112．282．20bA72．242．182．152．19bALSD0．05=0．44LSD0．01=0．618。2．3LSR8。1．51/37。4NaCl。17P＜0．010．274。。4Tab．4TheinfluenceofdifferentsaltlevelonstemleafratioTreatment1Rep．12Rep．23Rep．3MeanOtherness0．050．0171．4521．5101．5241．4953aA61．4151．4091．4511．4250abA51．5241．2291．4461．4000abcAB41．3941．3231．3971．3713abcAB31．2491．3941．2051．2827bcAB21．1441．1151．4941．2510bcAB11．2531．1811．2001．2113cBLSD0．05=0．1945LSD0．01=0．2727。5Tab．5Theinfluenceofdifferentsaltlevelonregenerationspeedcm/dTreatment1Rep．12Rep．23Rep．3MeanOtherness0．050．0111．6861．8601．8031．783aA21．8031．4691．8401．704aA31．4632．0971．4711．677aA41．4601．4261．8201．569abAB51．2971．3311．1291．252bcAB61．1141．0141．2031．110cB70．9711．3370．8001．036cBLSD0．05=0．402LSD0．01=0．563。2．4、8。。5。5NaCl。16、7P＜0.015P＜0.052、3、4P＞0.05。8g/LNaCl246g/LNaClP＞0.05。。32579－11、12－16。、、。。。。246g/LNaClP＞0.05。LSR。。。P＞0．05。。。1．J．20061561241－1245．2．J．2007131866－68．3．J．20097156－60．4．J．2009629－33．5．J．200416218－21．6．J．2004352－55．7．10J．20051113－16．8．J．200722152－155．9．J．200918146－50．10．J．200836197990－79928013．11．J．2009184230－235．12．6J．2008231133－137．13．10J．200625750－53．14．J．2006286933－936．15．J．20081238－40．16．J．20082178－180．