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1.
将杂交水稻制种基地转移到山区单季稻区Choosingmountaineousandsinglecroppingriceareaasthelotforhybridriceseedproduction杂交水稻是仙居县晚稻的主栽作物,常年大田种植面积在1万...  相似文献   

2.
杂交水稻制种田稻曲病的发生和综合防治技术   总被引:1,自引:1,他引:0  
刘平  张齐标 《杂交水稻》1998,13(2):36-36
杂交水稻制种田稻曲病的发生和综合防治技术Incidenceoffalsesmutanditsintegratedcontrolinhybridricesedproduction刘平张齐标吴宣发(安徽省庐江县种子公司231500稻曲病近年来在我国各稻区...  相似文献   

3.
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   

4.
抗水稻细条病和水稻白叶枯病转基因水稻植株的获得   总被引:1,自引:0,他引:1  
抗水稻细条病和水稻白叶枯病转基因水稻植株的获得RegenerationofTransgenicRicePlantsResistanttoBacterialLeafStreakandBacterlalBlightofRice¥中国水稻研究所生物工程系和...  相似文献   

5.
Plantharbouredproteaseinhibitorisapartofthenaturalplantdefensesys temagainstinsectpredation.Plantstransformedwithforeign plant pro teaseinhibitorgenescanenhancere sistancetoinsectpests.Sofar,atleast20kindsofplants,includingtobacco,rice,tomato,cottoneta…  相似文献   

6.
TTheinvitrobioassaytoscreeninsectresistanttransgenicriceinalargepopuTable1.CorrelationbetweenthenumberofGUSpositiveplantsandthenumberofin sect freeplantsatdifferentstagesa.LinecodeTilleringstage Bootingstage MaturingstageNo .ofNo.ofinsectNo.ofNo.ofinsectNo…  相似文献   

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

8.
FragrantRice2:ThericeoriginatedfromChengguandYangxiancoun ties,ShaanxiProvince.Whencooked,itwasfragrantandwaseasytobedigested.Itwassuitableforoldandweakpersons.ZaocaiguRice:ItwasfromXinchengandTianhuatowns,Ding nanCounty,JiangxiProvince.Thericehadshor…  相似文献   

9.
Japanese japonicaricecommonlyprovideswithanovicidalresistanceagainstthewhitebackedplanthopper(WBPH).Similarly,ovicidalactivi tywasalsofoundtoplayasignificantroleinastablefieldresistancetoWBPHinsomeChinese japonicarice.Ricevarietieswithovicidalre sistan…  相似文献   

10.
Thestudyofantisense_waxygene,coorporatedbyAgronomyCollege,YangzhouUnivandShanghaiPlantPhysiologyRe searchInst,theChineseAcademyofSciences,haspassedtheachievementevaluationrecently.Theresearchgroupcon structedanantisense_waxygenebyutilizingtheself_colo…  相似文献   

11.
Thericeblastdiseasecausedby Magnaporthegrisea(anamorph:Pyriculariagrisea)isoneofthemostseriousdiseasesofriceinChina.Riceblastoccursindifferentdegreeeveryyearandgenerallycausesyieldlossesof10_20 %upto40_50 %inseriousdiseasedregionintheepidemicyear,evenn…  相似文献   

12.
Thedeclineofricequalityandgerminationabilityintheprocessofstoragewasabigproblemtofoodproductionandmanagement.Gasandtemperaturecontrolwasusedtode creasestoragelosing,butselectinggermplasmwithgoodstoragecharacterswasrare.Inpractice,itwasfoundthatstorag…  相似文献   

13.
WushanRice:ItgrewinhillylandaroundWuMountaininWangCity,HunanProvince.Itsgrainisbrightandtransparent,andthecookedriceissoft,sticky,fragrant,andsweetintaste.Itwasa"TributeRice"inoldtime.IndianIndica:Growing inWuchang City,HubeiProvince,itwasalsocalled"R…  相似文献   

14.
Itiswellknownthatriceseedcontainslargeamountofseedbornebacterialpathogens.However,littleisknownaboutantagonisticbacteriaofthericeseed.ThissurveywastakentounderstandthedifferenceofthebiologicalagentsofthericeseedinthePhilippines(tropic)andinZhejiangPr…  相似文献   

15.
Genotypedifferencesontheul tra dryingtolerancesinricehavebeenreported,butthemechanismisstillunknown.Heretherelationshipbe tweenultra dryingtoleranceandheat stableproteinswasstudiedindifferentricecurredundernormaltemperatureandstronglight.Thephotoinhibi…  相似文献   

16.
水稻普通矮缩病 (又称普矮病 ) ,是由黑尾叶蝉为主传播发生的水稻病毒病。零星发生时 ,曾被农民误认为是种子不纯造成的杂株。 2 0 0 1年在建宁县里心镇大南村一坑垄单晚田中严重发生 ,除重病田翻犁改种外 ,余下的 6 67hm2 单季稻一般减产 2 0 %~ 30 %。随着发生区域的扩大 ,危害也日益趋重 ,特别是 2 0 0 2年春 ,该病在部分单季稻秧田中暴发成灾 ,导致补播补种而延误农时 ,对水稻生产已构成很大威胁。为控制该病的流行和危害 ,笔者于 2 0 0 1~ 2 0 0 3年就该病的发生及防治对策进行了探讨 ,现简介如下 :1 病状水稻矮缩病的症状田间常见…  相似文献   

17.
Abioticstressesincludingpotassiumdeficiencyarelimitingfactorsforincreasing rice yield.Ninerice genotypes(OryzaSativaL.,indica)differinginsensitivitytolowKstressselectedfrom200volume_solutionscreening wereusedinthisstudytoexamineaccumulationandtransloca…  相似文献   

18.
ThestudyledbyDrKunihiroY.(Japan)andDrQIANQian(China)nowadvancessmoothly.Mainpurposesandbackgroundsofthestudycanbedescribedasfollows:1)RiceisthemaincerealcropinChina.Successofthehybridricemakesthericeyieldsatisfyingtheincreas ingdemands.Butcreating aco…  相似文献   

19.
Thestrippedstemborer(SSB),Chilosuppressalis(Walker)isoneofthemajorinsectpestsofriceinChi na.ChemicalcontrolhasbeenacommonpracticeinSSBmanagementsince1950s.Insecticidesusedin cludedBHCbefore1983;organophos_phorusinsecticides(methyl_para_thion,trichopho…  相似文献   

20.
通过单季稻不同品种与播期南方水稻黑条矮缩病发生情况进行调查,结合分析白背飞虱发生量监测与带毒率检测,掌握了不同单季稻品种对南方水稻黑条矮缩病抗(耐)病性差异以及不同播种期对南方水稻黑条矮缩病发生的影响。结果表明,单季稻不同品种抗(耐)病程度存在较大差异,以中浙优1号、中浙优8号、春优618、C两优369品种抗(耐)病性较好,品种问总体抗(耐)病性表现为杂交晚籼好于杂交晚粳;不同播种期是影响南方水稻黑条矮缩发生的主要因素之一,同时还受白背飞虱发生量与带毒率影响,在预测预报过程中应综合分析水稻播种移栽期、白背飞虱发生量与带毒率三者吻合情况,提高防治指导准确性。  相似文献   

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