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1、中國水稻科學(ChinJRiceSci),２０１５,２９(３):２７３－２８１http://www．ricesci．cnDOI:１０．３９６９/ji．ssn．１００１Ｇ７２１６．２０１５．０３．００６２７３秈、粳超級稻莖稈抗倒支撐特征的差異研究龔金龍１,２邢志鵬１胡雅杰１張洪程１,?戴其根１霍中洋１許軻１魏海燕１高輝１(１揚州大學農(nóng)業(yè)部長江流域稻作技術(shù)創(chuàng)新中心/江蘇省作物遺傳生理重點實驗室,江蘇揚州２２５００９;２江蘇省種子管理站,南京２１００３６;?通訊聯(lián)系人,EＧmail:hczhang＠yzu．edu．cn)DifferenceinLodgingResistanceofCulmBet
2、weenindicaandjaponicaSuperRiceG１,２,XINGZhiＧpeng１,HUYaＧjie１,ZHANGHongＧcheng１,?,DAIQiＧgen１,HUOZhongＧyang１,XUONGJinＧlong１１１Ke,WEIHaiＧyan,GAOHui(InnovationCenterofRiceCultivationTechnologyintheYangtzeValley,MinistryofAgriculture/KeyLaboratoryofCropGeneticsandPhysiologyofJiangsuProvince,YangzhouUnivers
3、ity,Yangzhou２２５００９,China;２SeedManagementStationofJiangsuProvＧince,Nanjing２１００３６;?Correspondingauthor,EＧmail:hczhang＠yzue．duc．n)GONGJinlong,XINGZhipeng,HUYajie,etal．Differenceinlodgingresistanceofculmbetweenindicaandjaponicasuperrice．ChinJRiceSci,２０１５,２９(３):２７３Ｇ２８１．Abstract:Torevealthedifferenceinl
4、odgingresistanceofculmbetweenindicaandjaponicasuperrice,afieldexperimentwasconductedbyusingtwomainrepresentativesuperhybridindicacombinationsandtwoconventionaljaponicasuperricevarietiesasmaterialsinthericeＧwheatcroppingregions．Characteristicsofmorphology,Fillingandmechanics,breakingresistance,bend
5、ingmoment,lodgingindex,apparentlodgingrateinthefieldandgrainyieldwereanalyzedsystematically．Resultsshowedthat:１)grainyieldofjaponicaricewassignificantlyhigherthanthatofindicarice,witharateof１２．３０％．Fortheculmof０－２０cmfromthebottom,thebendingmomentofjaponicaricewassignificantlyhigherthanindicariceand
6、thelodgingindexfollowedanoppositetrendwithoutlodging,comparedtotheaverageapparentlodgingratesinthefieldof１１．９７％,１２．５０％from２０１１to２０１２forYangliangyou６andLiangyoupeijiu,respectively．２)Forallthefourbasalinternodes,indicaricehadsignificantlyhigherbreakingresistanceandlodgingindex,whilebendingmomentfoll
7、owedanoppositetendency．３)Lengthofeachinternodeandplantheight,outerdiameterofbasalinternode,stalktypeindex,singlepanicleweight,heightofgravitycenterandratioofgravitycenterheighttoplantheightofjaponicaricewerelower
