资源描述：
《双季晚粳稻不同栽培方式生产力及其群体质量差异研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、中国水稻科学(ChinJRiceSci),２０１４,２８(５):５０３－５１３http://www．ricesci．cnDOI:１０．３９６９/ji．ssn．１００１Ｇ７２１６．２０１４．０５．００８５０３双季晚粳稻不同栽培方式生产力及其群体质量差异研究许轲１张军１,２张洪程１,∗花劲１霍中洋１郭保卫１戴其根１魏海燕１高辉１(１扬州大学农业部长江流域稻作技术创新中心/江苏省作物遗传生理重点实验室,江苏扬州２２５００９;２淮安市农业技术推广中心,江苏淮安２２３００１;∗通讯联系人,EＧmail:hczhang＠yzu
2、．edu．cn)DifferenceinGrainProductivityandPopulationQualityofDoubleＧCroppingLatejaponicaRiceunderDifferentCultivationMethodsXUKe１,ZHANGJun１,２,ZHANGHongＧcheng１,∗,HUAJin１,HUOZhongＧyang１,GUOBaoＧwei１,DAIQiＧgen１,WEIHaiＧyan１,GAOHui１(１InnovationCenterofRiceCultivationT
3、echnologyinYangtzeValley,MinistryofAgriculture/JiangsuProvinceKeyLaboratoryofCropGeneticsandPhysiology,Yangzhou２２５００９,China;２Huai′anAgriculturalTechnologyPromotionCenter,Huai′an２２３００１;∗Correspondingauthor,EＧmail:hczhang＠yzue．duc．n)XUKe,ZHANGJun,ZHANGHongcheng,
4、etal．DifferenceingrainproductivityandpopulationqualityofdoubleＧcroppinglatejaponicariceunderdifferentcultivationmethods．ChinJRiceSci,２０１４,２８(５):５０３Ｇ５１３．Abstract:Ahighpopulationqualityisnecessarytoachievehighgrainyieldinrice,butlittleinformationisavailableabout
5、howdifferentcultivationmethodsaffectpopulationqualityandgrainyieldoflatejaponicarice．Zhendao１１(japonicaconventionalricecultivar)andYongyou８(japonicahybridricecultivar)weregrowninthefieldofdoubleＧcroppingricearea(Shanggaocounty,JiangxiProvince),underfivecultiva
6、tionmethodsincludingartificialtransplantingwithmiddleandstrongseedlingsindrynursery(AT),twoＧholeorderedtransplanting(OT),singleＧholeorderedbroadcasting(OB)andcasttransplanting(CT),withmechanicaltransplanting(MT)asCK．Theresultsshowedthat,theaverageyieldofthetwo
7、cultivarsunderATrankedfirst,followedbyOT,OB,CTandMT．ComparedwithgrainyieldunderMT,thegrainyieldofZhendao１１andYongyou８underAT,OT,OBandCTwerehigherby１７．１％and１６．８％,１２．７％and１１．７％,５．９％and５．４％,３．６％and１．８％,respectively．Andpercentageofproductivetillers(＞６５％),biomassin
8、wholegrowthdurationandfromheadingtomaturity,efficientandhighefficientleafarea,cropgrowthrate(CGR)andnetassimilationrate(NAR)ofriceinmiddleandlategrowingstage,grainＧleafratio,leafph
