1、浙江大學碩士學位論文番茄不同基因型耐熱性生理研究及種質改良相關技術的研究姓名：任彥申請學位級別：碩士專業(yè)：蔬菜學指導教師：盧鋼20060501浙江大學碩士學位論文番茄不同基因型耐熱性生理研究及種質改良相關技術的研究AbstractTomato(LycopersiconesculentumMill)’rankingthetopintheproductionareaandtotalyieldamongallthevegetablecrops

2、intheworld，playsagreatroleinvegetableproductioninChinaTomatobelongstothermophilicvegetablecrops，whosemostoptimumtemperaturerangeis20～25。Candadaptivetemperaturerangeis15～33℃However，inmanyChineseareas，daytimetemperatureoft

3、engoesbeyondthefavorabletemperaturerangefortomato。sflorescenceandfruitset，evengoingupto35℃ormore，inthesummeropenfield，sunlightgreenhouseandplasticgreenhouseduringthecrossingperiodbewteensummerandspring，whichleadstodamage

4、tomatogrowthandtorestrictitsdevelopmentEspeciallyinthelasttenyears，duetothegraduallyincreasinggreenhouseeffectthetemperaturerisesTherefore，thehightemperaturebecomesoneofthemainlimitaryfactorstostuntthenoramldevelopmentof

5、tomatoItisnecessarytostudythephysiologicalcharacteristicsandtheadjustingcapabilityoftomato’sgenotypicdifferenceinthetermofheattoleranceSuchresearchwillprovidehelpforthebreedingofheattoleranttomatovarietyandtoimprovethehe

6、attolerantcultivationtechnologyBasedonalargeaccountofcollectionofdomesticandoverseatomatoesandtheirmutants，ourworkevaluatedtheheattolerancesofninedifferentgenotypictomatoes，andselectedthe‘030701015’and‘ZhongshuNo6’thatow

7、nthedistinctdifferenceinthetermofheattoleranceTheeffectoffoliartreatmentwithbrassinolide(BR)onthetheirresponsetohightemperaturealsowerediscussedBesides，twoplantexpressionvectorsexpressingphytoenesynthasegene(crtB)werecon

8、structedtoestablishagreatbaseforthefuturestudyoiltheeffectof朋】，geneoverexpressiononfruitsetintheconditionofhightemperatureThemainresultsareasfollow：(1)Theobviousdifferencesamongphysiologicalandbiochemicalreactioncharacte

9、risticsandtheirchangedegreesofvariousgenotypictomatoeswerefoundTheincreaseddegreesofantioxidantenzymesfAPX，CATO—PODandSOD)activitiesandfreeprolineof‘03070105’werehigherthanthoseoftheothervarietiesTherefore，“03070105’’was

10、identifiedasahighheattoleranttomatovariety；‘LA3120’，‘LA4133’，‘LA3320’and‘LA3847’didnotshowdistinctheattolerancecapacityonthephysiologicalindexes，andtheheattolerancedegreeof‘LA3120’and‘LA3847’wereelementarilyconsideredash