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1.
Japanese japonicaricecommonlyprovideswithanovicidalresistanceagainstthewhitebackedplanthopper(WBPH).Similarly,ovicidalactivi tywasalsofoundtoplayasignificantroleinastablefieldresistancetoWBPHinsomeChinese japonicarice.Ricevarietieswithovicidalre sistan…  相似文献   

2.
ItisatraditionalriceoriginatedfromXuanhanCounty,SichuanProvince.FromtheTangdynasty(684DC),thelocalofficialsofferedthepeachblossomricetoemperor,soitwasalsocalled"TributeRice".GlassriceTheanothernamefortheglassriceisfragrantindicarice.ItwasfromQinyangC…  相似文献   

3.
ThestudyledbyDrKunihiroY.(Japan)andDrQIANQian(China)nowadvancessmoothly.Mainpurposesandbackgroundsofthestudycanbedescribedasfollows:1)RiceisthemaincerealcropinChina.Successofthehybridricemakesthericeyieldsatisfyingtheincreas ingdemands.Butcreating aco…  相似文献   

4.
Thestrippedstemborer(SSB),Chilosuppressalis(Walker)isoneofthemajorinsectpestsofriceinChi na.ChemicalcontrolhasbeenacommonpracticeinSSBmanagementsince1950s.Insecticidesusedin cludedBHCbefore1983;organophos_phorusinsecticides(methyl_para_thion,trichopho…  相似文献   

5.
Bacterialblightofrice,causedby Xanthomonasoryzaepv.Oryzae(Xoo.),isoneofthemajorricediseasesinChina.Makingcleartheshiftofgeneticdiversityofthepathogenwillprovideimportantinformationforricebreed ing.Strainscollectedfrom11provinceslocatedinSouth ernregio…  相似文献   

6.
Brown planthopper(BPH,Nila parvatalugensStal)andwhite backedplanthopper(WBPH,SogatellafurciferaHorvath)arethemaininsectsonriceinChina.Theinsecticideresistanceofthetwoplanthoppershaveoftenbeenreported.Availabilityoftheresistantpopulationisa prerequisite…  相似文献   

7.
Pretreatmentofriceseedlingsbyfo liarspraying withbenzothiadiazole(BTH)couldinducesystematicac quiredresistance(SAR)againstblast(Magnaporthegrisea)andbacterialleafblight(Xanthomonasoryzaepv.oryzae)diseases.Toelucidatethephysiologicalandbiochemicalmecha …  相似文献   

8.
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   

9.
In1992,acrosswasmadebetweenXieqingzaoB,themaintainerlineoftheCMSXieqingzaoAwhichwasawild_abortivetype,andIR58025Btoimprovegrainap pearanceandcookingqualityoffemaleparentsofhybridrice.Atotalof23plantswereselectedfrom1238oftheF2populationin1993.Sixteen…  相似文献   

10.
美国大豆育种研究新进展   总被引:1,自引:0,他引:1  
邱丽娟 《大豆科学》1994,13(3):261-267
美国大豆育种研究新进展邱丽娟(中国农科院作物品种资源研究所)NEWADVANCESINTHESTUDRSOYBEANBREEDINGOFU.S.A.¥QuLijuan(InstituteofCropGermplasmResources,Chinese...  相似文献   

11.
Toprovidephysiologicalbasisforthegeneticimprovementofhybridricewithphotoinhibitionorphotooxidationtolerance,wemeasuredphysiologicalindexesrelatedtoPSⅡlightenergyconversionefficiency (Fv/Fm)andmembranelipid peroxidation.Vari etiesusedwerejaponica02428a…  相似文献   

12.
RFLP图谱构建及其用于高梁种质的改良─—(P.J.Bramel-Cox等),UseofMolecularMarkersinSorghumandPearlMilletBreedingforDevelo-pingCountries,1994,3(英文)...  相似文献   

13.
高粱雄性不育:其特点及重要性─—(K.F.Schertz),UseofMolecularMarkersinSorghumandPearlMilletBreedingforDevelopingCountries,1994,35(英文)雄性不育是高粱的重...  相似文献   

14.
标记高粱抗霜霉病基因──(P.S.B.Gowda等),UseofMolecularMar-kersinSorghumandPearlMilletBreedingforDevelopingCountries,1994,10(英文)高粱霜霉病是全世界高粱...  相似文献   

15.
Recently,agreatprogresswasmadeinbreedingandcul tivationofsuperriceinChina.TheSouthDemonstrationAcceptanceMeetingofChinaSuperRicewasheldinOct17,2000inXinchangCounty,ZhejiangProvince.YieldmonitoringgrouporganizedbytheDepartmentofScience,TechnologyandEd…  相似文献   

16.
Recently,anewTGMSsource,UPRI95_140TGMS,hasbeenidentifiedinourhybridbreedingprogram.TheTGMStraithaddisplayeddigenicin heritance.However,thedetailedin vestigationofthelinerevealedmuchcomplicatedinheritance.Thesalientfindingsweresummarizedbelow:1.Basicge…  相似文献   

17.
花生叶片含氮量与光合作用和光能利用率T.R.Sinelan等关于花生叶片含N量对CO2交换速率(CER)的影响只作过部分研究。Bhagsari等(1976)测定了31个花生品种叶片N的浓度(单位重量)和光合作用强度,发现叶片N的浓度与CO2交换速率的...  相似文献   

18.
Wers.  G 白朴 《杂粮作物》1996,(2):52-53
再生和选择过程对马铃薯耐铝再生苗产生的影响G.Wersuhn等选择细胞培养产生的再生苗速率和一个新的有用性状遗传还相当低(Stavarck等,1984;Carison等,1984;Bhaskaran等,1987)。多数细胞形态建成后即失去耐性(Cha...  相似文献   

19.
中共湖南省委书记王茂林同志的讲话ThespeechbyWangMaolin,SecretaryofHunanProvincialCommitteeoftheChineseCommunistParty(根据录音整理,未经本人审阅)今天,我能够参加“中国...  相似文献   

20.
TTheinvitrobioassaytoscreeninsectresistanttransgenicriceinalargepopuTable1.CorrelationbetweenthenumberofGUSpositiveplantsandthenumberofin sect freeplantsatdifferentstagesa.LinecodeTilleringstage Bootingstage MaturingstageNo .ofNo.ofinsectNo.ofNo.ofinsectNo…  相似文献   

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