中國部分稻種資源化感作用潛力和作用機(jī)理研究.pdf

1、中國農(nóng)業(yè)科學(xué)研究院碩士學(xué)位論文中國部分稻種資源化感作用潛力和作用機(jī)理研究姓名：李迪申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：生物化學(xué)與分子生物學(xué)指導(dǎo)教師：余柳青20040601AbstractAllelopathywasdefinedasanydirectorindirectharmfulorbeneficialeffectofoneplant(donorplant)onanother(recipientplant)throughtheproductio

2、nofchemicalcompoundsthatreleasedintotheenvironmentApplyingplantallelopathytoinhibitweedscannotonlyefficientlyreducetheuseofchemicalherbicideandcosthutalsoprotectenvironmentandimprovecropproductAllelopathicpotentialof474r

3、icematedalsselectedrandomlyinthericegermplasmscollectionofChinaNationalRiceResearchInstitutewereevaluatedbysandculturetechniquecombinedwithchamberAnd1lricevarietieswithallelopathicpotential(RI070)wereobtainedbycomparison

4、oftheintegratedrelativefactorofbamyardgrassRl(RIisgreaterandailelopathicpotentialissmaller)Afterthefieldexperimentandplantleafwaterextracttest3ricevarieties，1KungPao，Nolkul716andDgu，withallelopathicpotentialagainstbarnya

5、rdgrass(Echinochloacrusgalli(L)Beauvvarmiffs(Pursh)Peterm、wereobtainedfrom1lriceallelopathicpotentialmaterials4ricebiologicaltypesofZhefu802varietiesofsimilargeneticbackgroundanddifferentplantmorphologyIGl，IG4，1G25，IG26，

6、wereusedintheexperimentstostudytherelationbetweenthecompetitionandallelopathyagainstweedsResultsshowedthatricecompetitionabilityagainstweedsisdirectlyrelatedticeplantheightandtillerangleThedataalsodemonstratedthatricebio

7、logicaltypeswithstrongcompetitionabilitytoweedsalsohaves訂ongallelopathicpotentialAllelochemicalswereanalysedinlKungPao，nguandNoIkul716withallelopathicpotentialricevarieties，P1312777withailelopathyandXiushui63withnonallel

8、opathybyGCMS(Gaschromatography／Massspecmam)techniqueTheresultsofGCMSanalysisindicatedthattherewerethreepeakswithin1922minThese3peaksarealsosmallsWaightchainmolecularsAllelopathicriceandnonallelopathicricehavenosignifican

9、tdifferenceinretentiontimeandpeal【areasSolubleprotein，peroxidase(POD)isoenzymeandEsteraseisoenzymeelectrophoresisweredetectedinleafandrootoflKung—Pao，Dgu，NoIkul716andP1312777withallelopathicpotentialandXiushui63withnonal

10、lelopathicricevarietiesTheresultsindicatedthatisoenzymewasprobablefactoraffectingthepotentialofriceallelopathyTheresultswillbefurthervalidatedbecauseoflessdatectedva—etiesKeywords：rice(OrysasagvaL)，bamyardgrass(Echinochl