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1.
Genomicsisabiologytermappearedtenyearsago,usedtodescribetheresearchesofgenomicmapping,sequencing,andstructureanalysis,etc.Genomics,thefirstjournalforpublishingpapersongenomicsresearchwasbornin1986.Inthepastdecade,theconceptofgenomicshasbeenwidelyacce…  相似文献   

2.
Theprogramof"Transferbacterialblight_resistancegeneXa_21intothehybridrice",cooperatedbytheGeneticInst,ChineseAcademyofSci,CropInst,ChineseAcadofAgriSci,andAgronomyCollege,YangzhouUniv,haspassedthroughtheidentificationrecently.ThestudyconstructedtheXa…  相似文献   

3.
Ninebrownplanthopper(BPH)resistancegeneshavebeenregisteredsofar,butofthemonly Bph1,bph2,Bph3,bph4,Bph9,andotherthreeunregisteredgenesBph10(t),Bph(t),bph(t)werelocatedonchromosome3,4,10,and12,respectively,byusingtraditionalandmolecularmappingmethods.T…  相似文献   

4.
Creation of new plant type and breeding super rice in northern China   总被引:2,自引:0,他引:2  
ThesubjectofbreedingsuperjaponicariceinnorthernChina,wasgrownoutoftheresearchthroughcrossingin dicawithjaponicaandbreedingforidealplanttypes.Sofar,ithasworkedwiththreestages:researchonfunda mentalprinciples,creationofgermplasmsfornewplanttypes(NPT),an…  相似文献   

5.
Aprojectfrom863whichisoneofthenationalhighandnewtechnologyprograms,"Develop mentofnewricevarietiesresistanttoriceblastandsheathblightbyusinggeneengineering"haspassedtheexpertidentification.Thenewtypeofricevarietiesisexpectedtoyield450kg/hamorethanthe…  相似文献   

6.
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   

7.
ShanxiblackriceItwasoriginallyfromYangCounty,Hanzhong Region.Thisricewasaworld_famousricevarietydevelopedin140BC.Ithadpitch_blacksurfacewiththeproteinandoilcontentsbeing6.8 %and20 %higherthanthatofcommonrice,respectively.Ithad15kindsofaminoacidsandmany…  相似文献   

8.
TheInternationalHybridRiceTraining Class,organizedbyCNRRIandIRRIcorporately,washeldduringAug1toSep15,2000atCNRRI.Participators,14altogether,werefromIn dia,Philippine,VietNam,SriLanka,Bangladesh,Indonesia,andIRRI,respectively.Trainersintheclasswerefrom…  相似文献   

9.
Oryzarufipogon,distributedintropicalandsubtropicalregionsisanimportantgermplasmforricebreeding.Dongxiang(28°14′N,116°36′E)isthenorthernmostareaofthisspeciesrecordedintheworld,andChaling(26°50′N,113°40′E)isneartothenorthernrangelimit.Seeddormancycommo…  相似文献   

10.
玉米圆斑病菌研究的新进展   总被引:1,自引:0,他引:1  
Dodd.  JL 朱茂山 《杂粮作物》1995,(2):31-32,27
玉米圆斑病菌研究的新进展J.L.Dodd在玉米制种田里,由玉米圆斑病菌[Bipolariszeicola(Stout)Shoemaker(异名HelminthosporiumcarbonumUllstrup,Drechslerazeicola(Sto...  相似文献   

11.
杂交稻种滥制滥销酿成的苦果Disastrousresultsfromspontaneousil-legalhybridriceseedproduction江西省修水县是九江市最大的杂交水稻制种基地,80年代以来,每年制种面积5000~6000亩,年产...  相似文献   

12.
CO39,itsnear_isogeniclines,havingsingleblastresis tance gene,C101LAC,C101A51,C104PKT,andC101PKT,anditsresistancegenepyramidlinesBL121,BL241,andA57_119,grewintheblastnurseryatIRRI.Theseedsweresowninfourbatcheswithtwoweeksinter valbetweenbatches,usingIR…  相似文献   

13.
粳型同质恢复系选育初探   总被引:2,自引:0,他引:2  
粳型同质恢复系选育初探Selectionmethodsofjaponicaisoplasmicrestorerlines邓应德,唐传道(湖南杂交水稻研究中心.长沙410125)水稻籼粳亚种间杂种优势利用一直是育种家追求的育种目标。70年代,不少籼型同...  相似文献   

14.
Physiologyofrootsystem,especiallyrootsystemactivity,isaveryimportantphysiologicaltraitofrice,whichdi rectlyaffectsricegrowthanddevelopmentoftheaerialpartsandyield.Inter_subspecifichybridriceIIyou2070andIIyou419,aswellastheirrestorerlines2070andZhong4…  相似文献   

15.
Conservation and utilization of rice genetic resources in China   总被引:1,自引:0,他引:1  
RicegeneticresourcespresentsvariablyinChina.Therearelandracesandwildspecies,cultivatedlowlandriceanduplandrice,indica(Hsien)andjaponica(Keng)rice,early,middle,andlatericeaswellasglutinousandnon_glutinousrice.UptoFebruary2000,atotalof76,646riceaccessi…  相似文献   

16.
Toexplorethemechanismsofthedifferencesincapacitiesrelatedtophotodamage_resistanceofindicaandjaponicasubspecies,thexanthophyllcyclecomponents,violaxan thin(V),antheraxanthin(A),zeaxanthin(Z),PSⅡ_D1_proteincontents,andPSⅡ photochemicalefficiency(Fv/Fm)w…  相似文献   

17.
Inthisexperiment,seedlingsofsixindicaricevarieties,Nannongxian2,Changsizhan,Qigui,Zhong 86 44,Zao xiang1,andZhongyu1wereused.EachofthemweretransplantedintotheKimuranutrientsolutioncontaining1,3,and10mg/LK ,respectively.Plantsampleswerecollectedat3,5,a…  相似文献   

18.
提取条件对茶多酚制品儿茶素组成的影响   总被引:14,自引:3,他引:14  
严明潮  徐向群 《茶叶科学》1996,16(2):155-156
提取条件对茶多酚制品儿茶素组成的影响严明潮徐向群单夏锋(中国农业科学院茶叶研究所,杭州310008)关键词:茶多酚儿茶素组成提取条件EGCGGCGKeywords:TeapolyphenolsCatechincompositionExtracting...  相似文献   

19.
Thedeclineofricequalityandgerminationabilityintheprocessofstoragewasabigproblemtofoodproductionandmanagement.Gasandtemperaturecontrolwasusedtode creasestoragelosing,butselectinggermplasmwithgoodstoragecharacterswasrare.Inpractice,itwasfoundthatstorag…  相似文献   

20.
广西桂林地区杂交水稻制种技术总结AsummaryofhybridriceseedproductiontechniquesinGuilinPrefecture,Guangxi杨定勋(广西桂林地区种子公司541000)我地区杂交水稻推广获得了连续10a增...  相似文献   

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