2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、中國農(nóng)業(yè)大學(xué)碩士學(xué)位論文轉(zhuǎn)基因抗蟲陸地棉推廣的實證研究姓名:李鐵莊申請學(xué)位級別:碩士專業(yè):種植業(yè)指導(dǎo)教師:李小云20040301中國農(nóng)業(yè)大學(xué)碩士學(xué)位論文Abstmct暑暑曼曼皇曼曼曼曼曼_毫詈曼曼曼置_量量皇曼曼曼量毫_—舅置曼曼曼曼鼉皇皇皇量詈曼皇!E!曼曼曼鼉皇量皇曾皇_I毫曼曼曼曼曼篁AbstractTopic:EmpiricalStudyonExtendingTransgenicCottonAuthor:litiezhuangS

2、pecialty:FieldofPlantingResearchProgram:DevelopmentofRuralAreaCollege:CollegeofHumanitiesandDevelopmentSupervisor:ProfessorlixiaoyanCotton(Gossypiumhirsutum)isanimportantcashcropDuringitslifecycleitmaybedamagedbymanyinse

3、cts,ofwhichthebollworm(Helicoverparmigera)isthemosthaxmfuloneWithallkindsofinsecticidesbeingusedoveralongperiod,theinsectinsecticideresistancehasgreatlyincreasedandthishasresultedintherapidincreaseinthecostofbollwonncont

4、r01Developingatransgunicinsect。resistantcottonvarietythroughgeneengineeringhasbecomepossiblewiththedevelopmentofmodemagriculturalbiotechnologyTheextensionoftransgeniccottoncouldreducethecostsofinsectcontrolandlaborrequir

5、ed,alleviatethechancesofinsecticidepoisoningofpeopleandanimals,andcouldalsodecreaseenvironmentpollutionItplaysapositiveroleincontrofiingpests,raisingyields,reducingCOSTS,increasingprofitsandimprovingenvironmentprotection

6、Thehypothesisstatesthattherearedifferencesamongthecottonfarmersindifferentareasintheirknowledge,farmingtechnologyandacceptanceleveltotransgeniccottonTherearealsomanyrelatedpartiesthataffecttransgeniccottonusebyfarmersand

7、thesedifferentpartiesfocusontheirindividualprofitmaximizationThisthesisusesQiliyingVillageofXinxiangCountyandJinbeigangVillageofWeishiCountyasexamplesItsystematicallyanalyzestheexpectanteffects,affectingfactors,beneficia

8、rytargetsoftransgeniccottonextensionandtheappraisalofdifferentbeneficiarytargetstotransgeniccottonWaystesolvetheaffectingfactorsandthemethodofregulatingtheprofitsamongdifferentpartiesarealsodiscussedAccordingtotherelated

9、conclusioas,scveralinterrelatedsuggestionstoeffectivelyextendtransgeniccottonaremadeTheconclusionsofthisthesisareasfollows:1Extendingtransgeniccottonisanimportantmeanstaisethewholecompetitiveabilityofourcountry’scottonma

10、rketItisanindispensablewaytoraisethecottonyield,improvethenaturalcnvironment,reducethelaborintensityandincreasetheincomeofcottonfarmersIfthetransgeniccottonvarietiesaregrownthecottonhollwormscanbeeffectivelycontrolled,an

11、dtheincomefromcottonDroductioncanberaised,andthecottonindustrycanbeassuredtodevelopcontinuouslysteadilyandhealthily2Therearemanyfactorsthatcouldinfluencetheextensionoftransgeniccotton,:includingvarietypolicymarket,cotton

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