內(nèi)蒙古哈密瓜果斑病病原分離物的鑒定及其藥劑防治研究.pdf

1、中國(guó)農(nóng)業(yè)大學(xué)碩士學(xué)位論文內(nèi)蒙古哈密瓜果斑病病原分離物的鑒定及其藥劑防治研究姓名：楊立國(guó)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：農(nóng)業(yè)推廣種植指導(dǎo)教師：王琦胡俊20060501AbstractBacterialfruitblotchfromBayanurofInnerMongoliawasjdentifiedasAcidovoraxavenaesubspcimtllibyseparation，purification，cultivation，morphol

2、ogicalcharacterization，physiologicalandbiochemicalreactionsandpathogenicitytestThebacteriostasisactivityof7fungicidesweredeferminedwith5differentconcentrationgradsbypaperdishmethodTheresultsshowedthat，withtheproperconcen

3、tration，50％chlombromoisocyanuficacidandstreptomycinsulfateandoxytetracyclinihydrochloridumSPXrespectivelyturnedoutthelargestbacteriostasiszonediameterof248emand241cm30％DTgermicideand72％streptomycinsulfateSPXwe∞theseconda

4、nd538％copperhydroxideDFwasthesmallestof120eraThecontroleffectofsevenfungicidesweretestedinfieldwithrandomizedblocks，attheinitialstagesofthediseaseforcontinuousthreetimesatallintervalof7days，andwetestesdthecontroleffectaf

5、ter10daysTheresultsshowedthat50％cMorobromoisocyanuricacidandstreptomycinsulfateandoxytetracyclinihydrochloridumSPXhadthehighestcontroleffectofmorethan85％，72％streptomycinsulfateSPXand30％WcopperWPhadtheeffectof70％orso，and3

6、0％DTgermicide，20％bismerthiazolWpand538％copperhydroxideDFhadtheeffectof481％to622％Accordingtotheexperimentweconcludedthat50％chlorobromoisocyanuricacidandstreptomycinsulfateandoxyteUacycliulhydrochloridnmSPXshowedtheh軸estef

7、fectforcontrollingthebacterialfruitblotch，andcanbepopularizedintheproductionAdditionallyitcanreducetheresistanceoffungicidesbyalternativelyusingthetwogermicideKeywords：Hamimelonbacterialfruitblotch，pathogeny，chemicontr01