雜交棉新陸中31號高產(chǎn)性狀指標(biāo)及光合生理特性研究.pdf

1、石河子大學(xué)碩士學(xué)位論文雜交棉新陸中31號高產(chǎn)性狀指標(biāo)及光合生理特性研究姓名：高山申請學(xué)位級別：碩士專業(yè)：作物栽培與耕作學(xué)指導(dǎo)教師：馬富裕20080901Astudyonmorphologicalandphotosyntheticphysiologicalcharacteristicsofhighyieldhybridcultivar‘‘Xinluzhong31’’Graduatestudent：GaoShah(Cropcultivati

2、onandfarmingsystem)DissertationSupervisor：ProfessorMaFuyuAbs仃actAfieldstudywhichfocusedonthemorphologicalandphotosyntheticphysiologicalcharacteristicsofhi曲yieldhybridcultivar“Xinluzhong31”whichiswidelyadoptedinSouthXinji

3、ang，wasconductedinAlarFarm(40o50N，80040’E)in20062007Theobjectiveofthisresearchisthatthehighyieldmechanismcanbeexplainedthroughtheinvestigatingagronomicdevelopmentprocess，drymatteraccumulating，photosynthesisandyieldconsti

4、tutingfactors，andthattheoryandtechnologyforhi曲yieldcallbesupportedUnderhighyieldconditionthenetphotosyntheticrateandtransevaporationforXinluzhong31duringbudgrowthphaseandbolldevelopmentwere2493umolm2s1。1213retoolm2。sIand

5、2548lamolm乏sl，1862mmolIn2s1respectivelywhichweresignificantlyhigherthanthatforcontrastcultivarThecorrelativeandpathanalysisresultsshowedthatthebiggestcontributionforhighyieldofXirduzhong31Wasnetphotosyntheticrate，andthes

6、econdandthirdpositionwereoccupiedbyphotosyntheticactiveradiation(PAR)，transevanporationandwateruseefficiencyrespectivelyThehiighyieldoptimaldensityforXinluzhong31is200456plantshm～inSouthernXinjiangThecontributionordertoy

7、ieldforXinluzhong31aredensitybollnumberperplantbollweightlintpercentageamongdifferentyieldfactorsTherefore，Thechemicalregulationusingmepiquatchloride(DPC)WassignificantlyeffectivefordevelopingideacottonplantmorphologyUnd

8、erhi曲yieldcondition，theplantheightWasregulatedinrangeof90100cmusingDPC3759‘hm一，averagelengthofstemintemode55to60cm，theeffectivesympodiumbranchnumbe6to7，bollnumberperplant85to11，bollweight398to4129lintpercentage388406％，se

9、edcottonyieldCanreachto8250to9030kg‘hm吐Theoptimalperiodfortippruningisbetween818Julyfor“Xinluzhong31”insouthXinjiangplantheightisnomorethan95cmsympodiumbranchnumberis9to10，thetotalsympodiumpoint2628，theeffectiveboilingpe