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抽穗期施氮肥对延缓小麦旗叶衰老机理初探

来源:花匠小妙招 时间:2025-09-17 09:53

                                           2007,21(3):291—294 JournalofNuclearAgriculturalSciences     :1000.8551(2007)03.291.04                            (         ,    210095) 291   :                  ,   Rubisco   ,           .                ,    ,Rubisco N        ,  953       ,Rubisco N     0.998  0.651 1.432  0.470,  5      ,Rubisco N      0.896  0.485 1.243  0.511,  Rubisco        ,          ,     Rubisco    ;             ,    ,Rubisco N         ,  ,Rubisco N            ,      ,     Rubisco      ;                     ,       .    :    ;  ;Rubisco    www.taodocs.com                                                  2007,21(3):291—294 JournalofNuclearAgriculturalSciences     :1000.8551(2007)03.291.04                            (         ,    210095) 291   :                  ,   Rubisco   ,           .                ,    ,Rubisco N        ,  953       ,Rubisco N     0.998  0.651 1.432  0.470,  5      ,Rubisco N      0.896  0.485 1.243  0.511,  Rubisco        ,          ,     Rubisco    ;             ,    ,Rubisco N         ,  ,Rubisco N            ,      ,     Rubisco      ;                     ,       .    :    ;  ;Rubisco    www.taodocs.com       

AI.RELD[NARYD,】STIGAnoNoNSENESCENCEMCI?iISMoFFLAY LEAFBYNITRoGENFERT?IZERINEARINGPERIoD GAOLingZHANGRong?xian (DepartmentofAgronomy,NanjingAgriculturalUniversity,Nanjing,Jiangsu210095) Abstract:Applyingnitrogenfertilizerinearingperiodcouldenhancenetphotosyntheticrate,contentoftotalnitrogen,content ofRubisco.whilecoulddeclinetheproteasesactivity.Duringtherelativeactivephotosyntheticduration(RAPD)ofwheatflag leaf.'NabundanceoftotalnitrogenandRubiscowereatthehighleve1.NabundanceoftotalnitrogenofLaizhou953 decreasedfrom0.998to0.651.whileNabundanceofRubiscowasfrom1.432to0.470;Nabundanceoftotalnitrogenof YangmaiNo5wasfrom0.896to0.485while"NabundanceofRubiSCOisfrom1.243to0.511.DuringtheRapid PhotosyntheticDuration(RPD)ofwheatflagleaf,theywereatalowerlevel("NabundanceoftotalnitrogenandRubiscowere nearthecontrolsampleleve1),andhalittlechanges.AUtheseindicatedthattherewerealargenumberRubiscore? synthestizedduringRAPD.buttherewas1ittleRubiscore.synthesizedduringRPD.ThesealSOillustratedthatwheathad higherabilityonabsorbingandutilizingnitrogenduringlaterstageofwheatgrowth. Keywords:wheatflagleaf;nitrogenfertilizer;Rubisco                ,                ,  ,      .              ,           ,     www.taodocs.com       AI.RELD[NARYD,】STIGAnoNoNSENESCENCEMCI?iISMoFFLAY LEAFBYNITRoGENFERT?IZERINEARINGPERIoD GAOLingZHANGRong?xian (DepartmentofAgronomy,NanjingAgriculturalUniversity,Nanjing,Jiangsu210095) Abstract:Applyingnitrogenfertilizerinearingperiodcouldenhancenetphotosyntheticrate,contentoftotalnitrogen,content ofRubisco.whilecoulddeclinetheproteasesactivity.Duringtherelativeactivephotosyntheticduration(RAPD)ofwheatflag leaf.'NabundanceoftotalnitrogenandRubiscowereatthehighleve1.NabundanceoftotalnitrogenofLaizhou953 decreasedfrom0.998to0.651.whileNabundanceofRubiscowasfrom1.432to0.470;Nabundanceoftotalnitrogenof YangmaiNo5wasfrom0.896to0.485while"NabundanceofRubiSCOisfrom1.243to0.511.DuringtheRapid PhotosyntheticDuration(RPD)ofwheatflagleaf,theywereatalowerlevel("NabundanceoftotalnitrogenandRubiscowere nearthecontrolsampleleve1),andhalittlechanges.AUtheseindicatedthattherewerealargenumberRubiscore? synthestizedduringRAPD.buttherewas1ittleRubiscore.synthesizedduringRPD.ThesealSOillustratedthatwheathad higherabilityonabsorbingandutilizingnitrogenduringlaterstageofwheatgrowth. Keywords:wheatflagleaf;nitrogenfertilizer;Rubisco                ,                ,  ,      .              ,           ,     www.taodocs.com       

     ,RNA     .        ,     ,    ,     ...,            ,       ,      .                 ,           ,         ,             .Rubisco(EC.4.1.39)   c                 .    ,Rubisco                 50%  .Rubisco  , RuBPCase                 ,                  ,             RuBPCase     .          :2006.11-07     :              (G1998010100)     :  (1967-), ,   ,   ,         ,E-mail:gaoling. 292  2l      ,         90%            ?],       ,     ,                          .           ,                        ,                     ,            ,          .                          . 1      1.1      www.taodocs.com            ,RNA     .        ,     ,    ,     ...,            ,       ,      .                 ,           ,         ,             .Rubisco(EC.4.1.39)   c                 .    ,Rubisco                 50%  .Rubisco  , RuBPCase                 ,                  ,             RuBPCase     .          :2006.11-07     :              (G1998010100)     :  (1967-), ,   ,   ,         ,E-mail:gaoling. 292  2l      ,         90%            ?],       ,     ,                          .           ,                        ,                     ,            ,          .                          . 1      1.1      www.taodocs.com       

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