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1.
鹰嘴豆有限生长习性的诱导和遗传H.A.VanRheenen等几种豆科植物如菜豆(PhaseolusvulgarisL.),大豆(Glycinemax(L.)Merr)和木豆(Cajanuscajan(L.)Huth)可以表现出有限生长习性或无限生长习...  相似文献   

2.
Pretreatmentofriceseedlingsbyfo liarspraying withbenzothiadiazole(BTH)couldinducesystematicac quiredresistance(SAR)againstblast(Magnaporthegrisea)andbacterialleafblight(Xanthomonasoryzaepv.oryzae)diseases.Toelucidatethephysiologicalandbiochemicalmecha …  相似文献   

3.
由FusariumoxysporumSchl.Emond.SnydandHans.f.sp.ciceri(Padwick)Snyd.andHans(简称FOC)侵染引起的枯萎病是鹰嘴豆(CicerarietinumL.)的一种毁灭性病害,有23个国家...  相似文献   

4.
Morethan10speciesofpathogenicfungiwereisolatedfromthenaturally infectedleavesofbarnyard grass(Echinochloacrus galli)in paddy.After preliminarybioassaying,itwasfoundthattheAlternariaalternata(Fr.)keissler(AA),Exserohilummonoceras(EM),and"99 10"werethreep…  相似文献   

5.
Quantitative trait loci analysis of leaf morphology in rice   总被引:3,自引:0,他引:3  
Theleafmorphologytraitsareimportantcomponentpartofriceideotype.Thepresentstudywasconductedwithadoubledhaploid(DH)populationof117linesderivedfromacrossbetweenanindicavariety,Zhaiyeqing8(ZYQ8)andajaponicavariety,Jingxi17(JX17).TheQTLsresponsibleforarea…  相似文献   

6.
ThestudyledbyDrKunihiroY.(Japan)andDrQIANQian(China)nowadvancessmoothly.Mainpurposesandbackgroundsofthestudycanbedescribedasfollows:1)RiceisthemaincerealcropinChina.Successofthehybridricemakesthericeyieldsatisfyingtheincreas ingdemands.Butcreating aco…  相似文献   

7.
Study on the ancient cultivated rice in China   总被引:1,自引:0,他引:1  
SSixty eightancientcultivatedricegrainsof10ruinsof2000 15000BPintheChangjiangRivervalleywerestudiedbyanalyzinggrainshape,using discri minatformulasofbi peakedtubercle(BPT)withtheG(x)=44.4788 -0.4308X1-0.4263X2 0.078X3,whereX1isbi peakeddistance(BPD),X2isp…  相似文献   

8.
Dgoxigenin(DIG)标记RNA探针检测侵染花生的Potyviruses/许泽永(中国农业科学院油料作物研究所中国油料.-1993,(4).-55~58花生条纹病毒(PStV)和花生斑驳病毒(PMV)是马铃薯Y病毒组(Potyviruses)...  相似文献   

9.
Bacterialblight(BB)causedby Xanthomonasoryzaepv.oryzae(Xoo)isoneofthemostdestructivediseasesofricethroughouttheworld.Thisstudywasconductedtounderstandthequalitativeandquantitativecomponentsinresis tanceofasegregatingricepopulationtospecificXoostrains.…  相似文献   

10.
Chlorophyllcontentsareoneofimportantphysiologicaltraits,whichaffectphotosynthesisinplants.ThereweresignificantdifferencesinchlorophyllcontentsbetweenZhaiyeqing8(ZYQ8),anindicavarietyandJingxi17(JX17),ajaponicavariety(Table1).In117DHlinesofthecrossofZ…  相似文献   

11.
Thericestemborer,Chilosuppres salis(Walker),isaseriouspestofrice plantsinChina.Z_11_hexadece_nal(Z11_16:Ald),Z_13_octadecenal(Z13_18:Ald),andZ_9_hexadecenal(Z9_16:Ald)werethemajorcompo nentsoffemalesexpheromone.Thereisfewstudyrelatedtothelurestoragedu…  相似文献   

12.
Bacterialisolatesof1274wereobtainedfrompaddysoil,sclerotiaofRhizoctoniasolani,lesionsofsheathblight(ShB),andriceplants.Sixty_onestrains,4.8 %ofthetotalisolates,showedstrongantagonisticabilityagainstR.solani.About57 %(727)wasmoderateandweakantag onistic…  相似文献   

13.
Aninterspecifichybridlinepf9279wasobtainedbyproto plastfusionbetween02428(japonica,withawidecom patibilitygene)andCNW240(O.officinalis,fromMalaysia)atCNRRIin1992.PossibleintrogressionofplanthopperresistancefromO.officinalisintopf9279wasinvestigatedbyf…  相似文献   

14.
Liangyou_Peijiu(65002),aninter_subspecieshybrid,wasbredinJiangsuAcadofAgriSci(JAAS)bytwo_linemethod.Thefemalewasalow_temperature_sensitivesterileline,Pei′ai64s(japonica),andthemalewas9311.Pei′ai64swasbredbyChinaNationalHybridRiceResearchandDevelopmen…  相似文献   

15.
Tx2891高梁种质品系的注册登记──—(S.D,Collins等),CropScience,1993.Vol.33,No.5,1109(英文)该品种衍生于抗高粱疫病(Peronosperasorghi)的Caudatumkafir母本(SC414-...  相似文献   

16.
Brown planthopper(BPH,Nila parvatalugensStal)andwhite backedplanthopper(WBPH,SogatellafurciferaHorvath)arethemaininsectsonriceinChina.Theinsecticideresistanceofthetwoplanthoppershaveoftenbeenreported.Availabilityoftheresistantpopulationisa prerequisite…  相似文献   

17.
玉米的进化和退化(E.M.Mey-erowitz),Current-Biology,1994,Vol.4,NO.2,127~130(英文)玉米和它的野生祖先玉米草(Zeamayssubsp.parviglumis,一种来自墨西哥和Guatemala南...  相似文献   

18.
TheBorotype(BT)cytoplasmicmalesterility(CMS)lineisthemainCMStypefortheutilizationofheterosisinjaponicarice.ThereisnorestorergeneforBTCMSlineinjaponicariceanditwasallfromindicarice.TherestorergeneusedinChinaisfromanIRRIindicavariety,IR8.Inheritanceoff…  相似文献   

19.
Adoublehaploid(DH)populationderivedfromacrossbetweenanindicavarietyZaiyeqing8(ZYQ8)andajaponicavarietyJingxi17(JX17),andtheirparentswerecompletelysubmergedfor5dattilleringstagetoevaluatetheirsubmer gencetolerance.Thetolerancewasevaluatedwithsurvivalr…  相似文献   

20.
Whitebackedplanthopper(WBPH),Sogatellafurcifera(Horvath),isoneofthemostdevastatinginsectpestsonriceinAsia.Itscontrolmainlydependedonthechemicalpesticides.Surveysofinsecticidesusceptibilityrevealedthatorganophos phorusandcarbamateresistancehasemergeds…  相似文献   

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