桃果實(shí)蒸騰強(qiáng)度對(duì)源葉凈光合速率及相關(guān)生理反應(yīng)的影響.pdf

1、中國(guó)農(nóng)業(yè)大學(xué)碩士學(xué)位論文桃果實(shí)蒸騰強(qiáng)度對(duì)源葉凈光合速率及相關(guān)生理反應(yīng)的影響姓名：姚慧敏申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：果樹學(xué)指導(dǎo)教師：李紹華20050601AbstractTheeffectsofsmearingfruitwithwaxwereinvestigatedonnetphotosynthate(Pn)andotherPhotosyntheticparametersduringtheendocarphardeningstageandfi

2、nalstageofrapidfruitgrowthinfive—years—old‘YanfeugNo1’peachtrees【P，wnuspersica皿)Batsch】Fruittranspirationrateweredecreased579％and414％respectivelybysmearingfruitwithliquidwaxof1：10and1：100wax／watersolutionDecreasedPn，stom

3、atalconductance(Gs)andtranspirationrate但)andincreasedleaftemperatureOa)wereobservedonthetreatmentoffruitsimmersedinliquidwaxThesubstomatalC02ofsourceleaveswRsnotsignificantlyinfluencedbythedecreasedfruittranspirationAsig

4、nificantpositivelinearcorrelationwasfoundbetweenPnandGsonlywhenGswasinferiorto02m01m2s_1andtherewasaparaboliccorrelationbetweenPnandTIMoreoverPnfromthetreatmentsoffruitsimmersedinliquidwaxwaslowerhoweverJthanthatofCKinth

5、esameTIItissuggestedthatthedecreasedstomatalapertureandincreasedTImaybeanimportantmechanisminregulatingphotosynthateunderadecreasedstrengthofsinkdemandbyreducingfruittranspirationrateinpeachtreesThecontentofsolublesolid，