不同耐貯性番茄果實成熟過程中生理特性差異的比較研究.pdf

1、中國農(nóng)業(yè)科學(xué)院碩士學(xué)位論文不同耐貯性番茄果實成熟過程中生理特性差異的比較研究姓名：馮錫剛申請學(xué)位級別：碩士專業(yè)：蔬菜學(xué)指導(dǎo)教師：胡鴻王孝宣20080601AbstractImprovementoffruitstorabilityisakeyobjectintomatobreedingInheritanceimprovementoftomatostorabilityhasacquiredmanyachievementsbymeansofm

2、aturemutationandgeneengineering，butthesewaysarelikelytomakethequalityworseGoodflavorqualityusedtoberequestedbyourcustomers，accordinglysomebreedswithgoodstorabilitybyabovebreedingmethodscan’tbeengeneralizedwellTherefore，c

3、hoosingbreedingmaterialsfromcommonripeningtomatocolonyisusefultoproductionandgoodflavorqualitymeaningfultoourtomatobreedingThisdissertationmadeuseoftwocommontomatomaterials(‘079一31’，‘079一33’)withgoodstorabilityandquality

4、aswellasFIhybrid‘079一32’(‘079一33’‘07934’)，thesematerialsconlefromourlabOurpurposeistestifyingphysiologymechanismofthesematerials’storabilitybymeansofstudyingrespirationandethylenemetabolizabilityTheseresultscanoffersomef

5、oundationsformolecularresearchontomatostorabilitycharacteristicsofregulationandcontrollingulteriorly1Thematerials‘079一31’and‘079一33’hadgoodstorabilityandtheftshelfliveswerelongclosetoorover40dThestorabilityofmaterial‘073

6、4’wasbad，itsshelflivewaslessthanonemonthComparedwiththefemaleparent，theshelflifeofFIhybrid‘079一32’wasover35d，becamelongerdistinctly2Duringfruitsripeningandsoftening，thematerials‘079一31’and‘079一33’withgoodstorabilitybehav

7、edthattheirclimactericpeakscamelateatpinkstage；Theclimactericpeal(ofcomparisonmaterial‘079一34’withbadstorabilitycameearlyatturningcolorstage；TheclimactericpeakofF1hybrid‘079一32’cameatthesaltlestageas‘079一34’，buttheclimac

8、tericpeakwasbelowthefemaleparentEthyleneproductionpeakshappenedatpinkstageforallthetrialmaterials，buttheethyleneproductionsof‘079一31’and‘079一33’werelessthanthecomparisonmaterial‘07934’obviouslyEthyleneproductionofF1hybri

9、d‘079一32’wasbetweentheparentsACCcontentsincreasedrightlythepeakvalueshappenedatredstageThematerials‘07931’and‘079一33’withgoodstorabilityhadlessACCcontentsthanthecomparisonmaterial‘079一34’；ActivitiesofACCsynthaseincreased

10、rightlytedstagetooSimilarlythematerials‘079一31’and‘079一33’withgoodstorabilityhadlessactivitiesthanthecomparisonmaterial‘079一34’；ActivitiesofACCoxidaseincreasedbeforepinkstage，andthendeclined，thematerials‘079一31’and‘07933

11、’withgoodstorabilityhadlessactivitiesthancomparisonmaterial‘079一34’；TheexhibitionsofFIhybrid‘07932’arebetween‘079一33’(maleparent)and‘07934’(femaleparent)inaboveaspectsTheresultsindicatedthatstorabilityofCOIllIIlOIltomato

12、eswereinaccordwithrespirationandethylenemetabolismduringfruitsripening3Duringfruitsripeningandsoftening，thematerialswithgoodstorability(‘079一31’，‘079一33’)behavedthattheyinteneratedmoreslowlytheirfirmnesswerebiggestatmatu

13、regreen，andthendeclined，theleastvalueswereover4kgcm2；Thefirmnessofcomparisonmaterial‘07934’wasless，theleastvaluewasonly205kgcm2：ThefirmnessofFIhybrid‘079一32’wasbiggerthanfemaleparent‘079一34’Theactivitiesofpolygalacturona