不同栽培模式对双季稻生长发育与产量影响的.研究

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1、2．Abovegroundbiomass，tillernumberperm2，andplantheightatdifferentgrowthstagesweresignificantlyhigherunderhigh—yieldingcultivationpattemthanconventionalcultivationpattern．Inaddition，biomassatmaturitystageunderhi曲-yieldingcultivationpatternwassignificantlyhigherthanthatunderconventionalcultivationpat

2、tem．Thetotalbiomassofriceplantunderdrynurserywassignificantlyhigherthanthatunderwatersoakednursery．3．Atearlystage，thereWasnodifferenceinleafphotosyntheticratebetweenthetwocultivationpattems．However,atlatestage，theleafphotosyntheticrateWassignificantlyhigherunderhigh-yieldingcultivationpattemthanun

3、derconventionalcultivationpattem，aswellasleafareaindex，Naccumulation．Thesemaybethephysiologicalbasisforthehighergrainyieldunderhigh—yieldingcultivationpattem．4．Thereweresignificantdifferencesinleaf-relatedtraitsatfullheadingstageamongdifferentcultivationpattems．Thelength，width，andareaofflagleafand

4、the2ndleafwerehigherunderhigh—yieldingcultivationpattemthanunderconventionalcultivationpattem．However,thelength，width，andareaofthe5mleafwerelowerunderhigh—yieldingcultivationpatternthanunderconventionalcultivationpattem．Underhigh-yieldingcultivationpattem，theorderinleaflengthWas2-3—1—4—5，whiletheo

5、rderwas2-3—4-5-1underconventionalcultivationpattem．5．Incomparisonwithconventionalcultivationpattem，theyieldsofthreesimplifiedhigh-yieldingcultivationpattemswerehigher．Amongyieldcomponents，paniclenumberandspikeletsperm2weresignificantlyhigherunderhigh—yieldingcultivationpatternsthanunderconventiona

6、lcultivationpattern,aswellastheleafareaindexatfullheadingstageandbiomassproductionatmaturitystage．Keywords：Doublecroppingrice；Cultivationpattern；Growth；Yieldformation4缩略语表AbbreviationTable5华中农业大学学位论文独创性声明及使用授权书学位论文否如需保密，解密时间年月日是否保密独创性声明本人声明所呈交的论文是我个人在导师指导下进行的研究工作及取得的研究成果．尽我所知，除了文中特别加以标注和致谢的地方外，论文中

7、不包含其他人已经发表或撰写过的研究成果，也不包含为获得华中农业大学或其他教育机构的学位或证书而使用过的材料，指导教师对此进行了审定。与我一同工作的同志对本研究所做的任何贡献均已在论文中做了明确的说明，并表示了谢意。研牲鲐私初敏帅：汐。艿年多月肿学位论文使用授权书本人完全了解华中农业大学关于保存、使用学位论文的规定，即学生必须按照学校要求提交学位论文的印刷本和电子版本；学校有权保存提交论文的印刷版和电子版，并提供目录检索和