不同品种啤酒大麦叶片光合特性与产量和品质关系的.研究

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1、甘肃农业大学2008届硕士学位论文relativelybad，Gswaslowest，itWaspossiblerelatedwiththeadaptabilityofclimateandenvi【ronmentinNorthwestChina．2．TherewasapositivecorrelationbetweenLAlandyieldofdifferentmaltingbarleycuRivars．FromjointingstagetOlaterfillingstage，thecorrelationbetweenLAIandyieldwasverysignificant．删，ofthir

2、tymaltingbarleycultivarsshowedobviousdifference,／_彳IofM．22、KHLEDI、Pasadena、Z014J081J、MERIT、Z090M066Metaltwo—rowedbarleywereallhigh．3．TherewasapositivecorrelationbetweenPn(photosyntheticrate)andyieldofdifferentmaltingbarleycultivars．ThecorrelationbetweenPnandyieldwasverysignificant(r=0．5024，0．5359，0．

3、6758)atbooting，headingtOfloweringandlaterfillingstage．4．Bygreyrelationalanalysis，therelatingsequenceofdifferenttraitandyieldwere：1000grainweight>planthigh>spikenumber>grainnumber，thus，improving1000grainweightwasthemainkey,meanwhileimprovingplanthigh，spikenumber,grainnumber．5．Bygreyrelationalanalysis

4、，therelatingsequenceofgrainproteinwere：l000grainweight，germinationrate，germinatingenergy,screeningrate．1000grainweightwas>38．00，germinationrateandgerminatingenergywere芝95％and之90％，screeningratewas芝75％，grainproteinWas<12．5，theyallmeasureduptofirstgradeindexes，traitsofmostmaltingbarleycultivarsmeasured

5、uptoqualityindexes．6．BygreyrelationalanalysisbetweenPnandyield，grainquality,fromflagleafstagetoheadingtoflowering，Pnhadimportantinfluenceonyieldandqualityofmaltingbarley,buttheimportanceofPnwasgraduallyweakenedatfillingstage．7．Bycomprehensivecomparison，photosyntheticcharacteristicsofMERITandZ090M066

6、Mweregood，yieldwerealsohigh，andmaltingbarleycultivarswithlowgrainproteincouldbeusedasthemainmaltingbarleycultivarswhichcouldbeplantedinNorthwestChinalargescale．Inaddition，M-22，KHDAMA，lⅢLEDI，SCARLETT,PasadenaandZ014J081Jwerethereservenewmaltingbarleycultivarswith“hi曲yield，highquality”．Keywords：Cultiv

7、ars；Maltingbarley；PhotosyntheticCharacteristics；Yield；Quality；IV甘肃农业大学2008届硕士学位论文独创性声明本人声明：所呈交的学位论文是本人在导师张恩和教授指导下进行的研究工作及取得的研究结果。据我所知，除了特别加以标注和致谢的地方外，论文中不包含其他人已经发表或撰写过的研究成果。对本论文研究所做的任何贡献均已在论文中作了明确的说明并