《不同授粉品种对苹果果实生长及内源激素含量的影响》

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1、植物生理学报PlantPhysiologyJournal2013，49(3)：277-284277不同授粉品种对苹果果实生长及内源激素含量的影响徐臣善德州学院农学系，山东德卅1253023摘要：以‘长富2号’红富士苹果(MalusdomesticaBorkh．CV．RedFuji，‘NagafuNo．2’)为母本，‘美红’、‘荷红’和‘红星’为授粉品种，进行人工授粉，测定不同授粉处理的果实在生长发育过程中果肉内源激素含量、果实单果重和纵横径的动态变化，从内源激素的角度探讨不同授粉品种对苹果果实生长发育的影响。结果表明：授粉品种

2、为‘美红’和‘红星’的果实单果重、纵横径净增长速率在花后10、14和22周出现高峰，授粉品种为‘荷红’的果实在花后14和22周出现高峰；花后l8周至采收时(花后26周)，授粉品种为‘美红’的果实的单果重、纵横径明显大于其他授粉品种(P

3、5)，ABA含量在花后22-26周低于其他授粉品种(尸l<0．05)，ZR含量在花后26周高于其他授粉品种(尸<0．05)。综上可知，不同的授粉品种通过影响苹果果实的内源激素水平调控果实的生长，相比于其他授粉品种，‘美红’更有利于提高果实单果重。关键词：苹果；果实生长；内源激素；授粉品种EffectsofDifferentPollinationVarietiesonFruitGrowthandEndogenousHormonesContentinMalusdomesticaBorkh．XUChen．ShanAgronomyDe

4、partment,DezhouUniversity,Dezhou,Shandong253023，ChinaAbstract：Inthisexperiment，RedFujiapple‘NagafuNo．2’wasusedasfemaleparent，and‘Meihong’，‘He—hong’and‘Starking’wereusedaspollinationvarieties，thendynamicchangesofendogenoushormonescon—tents．weightandvertical／horizonta

5、ldiameterinfruittreatedwithpollinationvarietiesweredeterminedtoex—ploremechanismsofcrosspollinationofapple．Theresultsshowedthat：thesinglefruitweight，vertical／horizontaldiameterpollinatedwith‘Meihong’and‘Starking’peakedatthe10th．14thand22ndweeksafterbloom．whilethosep

6、ollinatedwith‘Hehong’peakedatthe14thand22ndweeks．Singlefruitweightandverti—cal／horizonta1diameterpollinatedwith‘Meihong’werehigherthanothersfromthe18thweekafterbloomtoharvesttime(the26thweekafterbloom)(P<0．os)．IAA，GA(GA3)，zR(zeatin)contentsinfruitspollinatedwith‘Heh

7、ong’and‘Starking’increasedatthe10th。14thand22ndweeksafterbloom，coincidingwiththenetgrowthratepeaks．TheIAAcontentinfruitpollinatedwith‘Meihong’washigherthanthatof‘Hehong’duringthe8thand26thweeksafterbloom(J=P<0．05)，whiletheGA，contentwashigherthanothersduringthe20than

8、d26thweeksafterbloomfP<0．05)，theABAcontentwaslowerduringthe22ndand26thweeksafterbloomfP<0．05)andtheZRcontentwashigheratthe26thweekafterblo