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1.
LUChuangen ZOUJiangshi 《中国水稻研究通报》2000,8(4):14-15
Gametophytegenes(ga)forsegregationdistortionhavebeenreportedbymanyresearchers.Iwataetal(1964)reportedthepresenceofagametophytegenega1onchromosome6whichcontrolledaselectivefertilizationofgametesinthecrossbetweenanatomic_bomb_irradiatedmutantandanormal… 相似文献
2.
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
3.
Japanese japonicaricecommonlyprovideswithanovicidalresistanceagainstthewhitebackedplanthopper(WBPH).Similarly,ovicidalactivi tywasalsofoundtoplayasignificantroleinastablefieldresistancetoWBPHinsomeChinese japonicarice.Ricevarietieswithovicidalre sistan… 相似文献
4.
杂交早稻旱床育秧易出现的几个问题及对策 总被引:1,自引:0,他引:1
杂交早稻旱床育秧易出现的几个问题及对策Somecommonproblemsandthecountermeasuresinthedrylandseedlingraisingofearlyhybridrice1出苗不整齐秧苗出现几层楼现象,有的甚至到拔秧... 相似文献
5.
The trapping catches of sex pheromone lure of the rice stem borer, Chilo suppressalis at different storage duration 总被引:1,自引:0,他引:1
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
6.
CAIHongfa CHENQinggen 《中国水稻研究通报》2000,8(2):14-16
RiceisthestaplefoodcropinChina.Inthesecondhalfofthe20th century,ricehasplayedanimportantroleinfeedingalargenumberofpeople.Inthe21stcentury,ricewillstillbeamainfoodcropinChinaandmakegreatcontributiontoChinesepeople′slife.1.Greatachievementsofrice produ… 相似文献
7.
QIANQian ZENGDali TENGSheng CHENWenhua 《中国水稻研究通报》2001,9(1):13-14
ThestudyledbyDrKunihiroY.(Japan)andDrQIANQian(China)nowadvancessmoothly.Mainpurposesandbackgroundsofthestudycanbedescribedasfollows:1)RiceisthemaincerealcropinChina.Successofthehybridricemakesthericeyieldsatisfyingtheincreas ingdemands.Butcreating aco… 相似文献
8.
LIRongbai 《中国水稻研究通报》2001,9(3):6-7
Recently,anewTGMSsource,UPRI95_140TGMS,hasbeenidentifiedinourhybridbreedingprogram.TheTGMStraithaddisplayeddigenicin heritance.However,thedetailedin vestigationofthelinerevealedmuchcomplicatedinheritance.Thesalientfindingsweresummarizedbelow:1.Basicge… 相似文献
9.
In-situ conservation of Dongxiang wild rice 总被引:1,自引:0,他引:1
YINGCunshan CHENDazhou 《中国水稻研究通报》2000,8(3):6-6
In1978_82,theninecommunitiesofDongxiangwildrice(DXWR)belongingtoOryzarufipogonhadbeenfoundscattering about2_3hectaresinDongxiang County ofJiangxiProvince.Dongxiangissituatedat28°14′N,116°36′Eandelevationof47.6m,belongingtothezoneofredsoil.Itisthenorth… 相似文献
10.
Whitebackedplanthopper(WBPH,SogatellafurciferaHorvath)isoneofthemostdestructiveinsectsforrice.TheutilizationofWBPHresistancegenesisalwaysanefficientsolutiontothis problem.BesidesfiveWBPHresistancegenesregistered,Wbph1,Wbph2,Wbph3,wbph4,andWbph5 ,class… 相似文献
11.
在室内试验中,增加甲黄隆喷雾能显著减少tralkoxydim防除野燕麦的活性。该现象在 tralkoxydim低剂量(例如,125ga.i/ha)和甲黄隆高剂量(8或 12 ga.i/ha)使用时非常明显。甲黄隆能单独显著地使野燕麦生长发育减少。而绿磺隆在剂量达到 33ga.i./ha仍不能减小野燕麦生长,只能引致 tralkoxydim的活性轻微的下降。在混合使用时,施药后6h时甲黄隆能使施在叶片上的14C-tralxoxydim的吸收减小,但是在后来的取样时间里不影响14C-tralkoxydim的吸收和移动。在体外分析中,分析剂中的甲黄隆10μM 和100μM对野燕麦辅酶羧酸酶(ACCase)的活性无影响,也不干扰tralkoxydim对ACCasc的抑制作用。另外,用甲黄隆4,8和12g/ha处理野燕麦植株,喷药后24-96h收获时,并没有降低可提取的 ACCase的活性水平。甲黄隆对生长发育的暂时性抑制为绝大部分tralkoxydim代谢为无活性物质提供了充足的持续时间,因此减少了tralkoxydim所引致的损害。 相似文献
12.
Fromover800fungalstrainsofTri chodermaSpp.,6strainswerefoundtogreatlyinhibitthegrowingofRhi zocotoniasolani,thepathogenofricesheathblightindualculture.Amongthem,strainT3wasthebestantago nist,whichreducedthe growing ofthepathogenby52.54%(Table1).Infield,… 相似文献
13.
Study on the ancient cultivated rice in China 总被引:1,自引:0,他引:1
ZHANGWenxu 《中国水稻研究通报》2000,8(1):11-12
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
14.
Conservation and utilization of rice genetic resources in China 总被引:1,自引:0,他引:1
YINGCunshan 《中国水稻研究通报》2000,8(4):13-14
RicegeneticresourcespresentsvariablyinChina.Therearelandracesandwildspecies,cultivatedlowlandriceanduplandrice,indica(Hsien)andjaponica(Keng)rice,early,middle,andlatericeaswellasglutinousandnon_glutinousrice.UptoFebruary2000,atotalof76,646riceaccessi… 相似文献
15.
《中国水稻研究通报》2001,9(4):13-14
FragrantRice2:ThericeoriginatedfromChengguandYangxiancoun ties,ShaanxiProvince.Whencooked,itwasfragrantandwaseasytobedigested.Itwassuitableforoldandweakpersons.ZaocaiguRice:ItwasfromXinchengandTianhuatowns,Ding nanCounty,JiangxiProvince.Thericehadshor… 相似文献
16.
LIUWuge XUEQingzhong 《中国水稻研究通报》2001,9(3):4-4
Plantharbouredproteaseinhibitorisapartofthenaturalplantdefensesys temagainstinsectpredation.Plantstransformedwithforeign plant pro teaseinhibitorgenescanenhancere sistancetoinsectpests.Sofar,atleast20kindsofplants,includingtobacco,rice,tomato,cottoneta… 相似文献
17.
《中国水稻研究通报》2001,9(1):13-13
WushanRice:ItgrewinhillylandaroundWuMountaininWangCity,HunanProvince.Itsgrainisbrightandtransparent,andthecookedriceissoft,sticky,fragrant,andsweetintaste.Itwasa"TributeRice"inoldtime.IndianIndica:Growing inWuchang City,HubeiProvince,itwasalsocalled"R… 相似文献
18.
Activities of defense-related enzymes induced by benzothiadiazole in rice to blast fungus 总被引:1,自引:0,他引:1
GEXiuchun SONGFengming CHENYongye ZHENGZhong 《中国水稻研究通报》2001,9(4):10-11
Pretreatmentofriceseedlingsbyfo liarspraying withbenzothiadiazole(BTH)couldinducesystematicac quiredresistance(SAR)againstblast(Magnaporthegrisea)andbacterialleafblight(Xanthomonasoryzaepv.oryzae)diseases.Toelucidatethephysiologicalandbiochemicalmecha … 相似文献
19.
WANGHongkai LINFucheng LIDebao 《中国水稻研究通报》2001,9(4):6-7
M.griseacausesoneofthemajordiseasesonrice,riceblast.Appresoriumformationisthekeyforthepathogentopenetrateintohosttissue.So,itisim portanttostudytheeffectofenvironmentalfactorsontheappresoriumformationindetails.Thispaperreportsourre searchesonthissubje… 相似文献
20.
Bacterialblightofrice,causedby Xanthomonasoryzaepv.Oryzae(Xoo.),isoneofthemajorricediseasesinChina.Makingcleartheshiftofgeneticdiversityofthepathogenwillprovideimportantinformationforricebreed ing.Strainscollectedfrom11provinceslocatedinSouth ernregio… 相似文献