几个水稻品种源库关系分析

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1、万方数据第32卷第1期2011年3月扬州大学学报(农业与生命科学版)JournalofYangzhouOniversity(AgriculturalandLifeScienceEdition)VoI．32No．1Mar．2011几个水稻品种源库关系分析张亚芳，陈宗祥，娄丽娟，左示敏，潘学彪(扬州大学江苏省作物遗传生理重点实验室／教育部植物功能基因组学重点实验室，江苏扬州225009)摘要：以不同穗型的5个水稻品种为试验材料，通过剪叶(见穗时剪去剑叶一半长度)、疏花(见穗时剪去逢奇数的一次枝梗)处理，研究其源、库特征。结果表明：3个粳稻品种中，剪叶和疏花

2、处理，对大穗型品种中超123饱粒率和粒重的影响较大，其次是穗粒并重型品种恢236，对多穗型品种武陵粳l号的影响相对最小；中超123有明显的二次灌浆现象，是源限制型品种；恢236库大源足，粒／叶比和粒重／叶比均最小，但籽粒充实度较差，其同化物质转运的流不畅；武陵粳1号源库关系较协调。2个籼稻品种中，扬稻6号表现与武陵粳1号相似．源库关系较协调；R6547籽粒充实度较好，即使在剪叶处理下灌浆后期物质也有向茎秆再积累的现象，表明R6547是典型的库限制型品种。关键词：水稻；源库关系；源限制型；库限制型中圈分类号：S511文献标志码：A文章编号：1671—46

3、52(2011)01—0006一04Analysisonsource-sinkrelationsforseveralricevarietiesZHANGYa-fang，CHENZong-xiang，LOULi-juan，ZUOShi-min，PANXue-biao(KeyLabofCropGenandPhysiolofJiangsuProv／KeyLabofPlantFunctGenomicsofMOE，YangzhouUniv，Yangzhou225009，China)ABSTRACT：Throughthetreatmentsofleaf-cutti

4、ng(cuttingoffhalfoftheflagleavewhenseeingpanicle)andspikeletthinning(cuttingoffoddprimarybrancheswhenseeingpanicle)，source-sinkrelationshipwasstudiedonfivericecuhi-varswithdifferentpanicletypes．Theresultsindicatedthatamongthethreejaponicaricevarieties，impactofleaf-cuttingandspik

5、eIet-thinningonboththefulfilledgrainpercentageandgrainweightofZbongchao123withlarge-paniclewasmostobvious，nextwasHui236withmoderatespikeletandpanicle，whileWulingujing1withmulti—paniclewastheleast．Moreover，Zhongchao123hadapparentphenomenonofthetwicegrainfilling，whichbelongedtOsou

6、rce-limitingtype．Hui236withlargesinkandamplesource，hadtheIeastratioofgrainnumber／leafandgrainweight／leaf。butthegrainfillingwaspoor，andtheassimilatetranslocationwasnotsmooth．Inaddition，thesource-sinkrelationofWulingiing1w鹳unisonous．Asfortwoindiearicevarieties，Yangda06showedsimila

7、rcharacteristicstoWulingjing1withconcertedsource-sinkrelation．Anotherindicavariety，R6547，wasfineingrainfillingandthephenomenonofmaterialstranslocatingtostemwasobservedinspiteofleaf-cuttingtreantment，whichshowedthatR6547wasatypicalsink-limitingtypevariety．KEYWORDS．．rice；source-si

8、nkrelationship；source-limitingtype；sink—limitin