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1、浙江大學(xué)碩士學(xué)位論文飛船搭載對番茄誘變效果的研究姓名:鄭積榮申請學(xué)位級別:碩士專業(yè):農(nóng)業(yè)推廣指導(dǎo)教師:汪炳良王世恒20060501AbstractTomato(LycopersicumesculentumMILL)belongstoLycopersiconofSolanoideaeItsoriginisinPeruandEcuadorinSouthAmericaandisamainkindofvegetableinChinaOerrnp

2、lasmresourceisanimportantfactoroftomatobreedingTomatocultivar“HTl03—2”obtainedbyspaceflight,wasselectedgenerationbygeneration,andtheirmainagriculturalcharactersandeconomiccharacterswereobservedindetailinordertocontribute

3、totomatobreedingandspacemutationbreedingThemainresultswereshowedasfollows:1Thegerminatingrateandgerminatingenergywerechangedaftertomatoseedsweresenttospacebyrecoverablesatellite,buttheextentofthechangedependedtothemateri

4、alsAfterspaceflight,thefloweringdatewasdelayed,thevariationsamongplantsincreasedandtheplantstendedtobelowerthanCKSpacemutationhaderiectsonthepositionofthe1“inflorescence,thenumberofflowers,thenumberoffruits,thesizeoffrui

5、tsandSOonAndtheshapeofleavesandthecoloroffruitswerealsochanged2SpaceenvironmenthadgreateffectsontomatobotanycharactersandagriculturalcharactersTheresultsshowedthat,thegrowthenergyoftomatowasincreasedandsomevariationswere

6、heritableForexample,theaverageheightofSP3(fromH1)anditsoffspringwas7722~8772%higherthanthatofCK,andtheywereallindeterminategrowthhabitTheaverageheightofSP3(fromH3)anditsoffspringwas1804~2013%higherthanthatofCKandtheywere

7、alldeterminategrowthhabitThelengthofthegreatestleavesinSP4(fromH11)andSPs(fromH1一i)was21483126%longerthanthatofCKTheshapeoffruitshadgreatchangesinSP2Theychangedfromflatroundtound,highroundorroundwithalittlefiat3_Spaceenv

8、ironmenthadobviouseffectsontheeconomiccharactersoftomatoAfterspacemutation,theabilityoffruiting,theweightofsinglefruitandtheyieldwereincreased,anditwaspossibletoselectacultivarwithbiggerfruitsandhigheryieldTheresultsshow

9、edthat,thecolonywithhigheryield,alsohadstrongerfruitingabilityanditsfruitswerebiggerietheyieldsofSP3,SP4andSP5(allfromH2)wereall10%higherthanthatofCKAndtheirfruitingabilityoftheearliestthreeinfiorescenceswere30~75%higher

10、thanthatofCK,thefruitsaverageweightwas40%higherthanthatofCKButthecolonywithloweryield,hadweakerfruitingabilityandthefruitsweresmallerietheyieldsofSP4andSP5(fromH3—2andH3—21respectively)were18%lowerthanthatofCKAndtheavera

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