资源描述：
《杂交籼稻f优498机械化种植的茎秆理化性状与抗倒伏性》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(６):６１２－６２０http://www．ricesci．cn６１２DOI:１０．３９６９/ji．ssn．１００１Ｇ７２１６．２０１４．０６．００７杂交籼稻F优４９８机械化种植的茎秆理化性状与抗倒伏性雷小龙１刘利１刘波１黄光忠２马荣朝１,∗任万军１,∗(１四川农业大学/农业部西南作物生理生态与耕作重点实验室,四川温江６１１１３０;２成都市郫县农村发展局,四川郫县６１１７３０;∗通讯联系人,EＧmail:marongcao＠１６３．com,rwjun＠１２６．com)PhysicalandChemicalCharacteristic
2、sandLodgingResistanceofCulmofindicaHybridRiceFyou４９８underMechanicalPlantingLEIXiaoＧlong１,LIULi１,LIUBo１,HUANGGuangＧzhong２,MARongＧchao１,∗,RENWanＧjun１,∗(１SichuanAgriculturalUniversity/KeyLaboratoryofCropEcophysiologyandFarmingSysteminSouthwestChina,MinistryofAgriculture,Wenjiang６１１１３０,China;２PixianB
3、ureauofRuralDevelopment,Pixian６１１７３０,China;∗Correspondingauthor,EＧmail:marongcao＠１６３c．om,rwjun＠１２６c．om)LEIXiaolong,LIULi,LIUBo,etal．PhysicalandchemicalcharacteristicsandlodgingresistanceofculmofindicahybridriceFyou４９８undermechanicalplanting．ChinJRiceSci,２０１４,２８(６):６１２Ｇ６２０．Abstract:InthetwentyＧfif
4、thdayafterfullheading,thephysicalandchemicalcharacteristicsandlodgingresistanceofbasalinternodesinmainstemandtillerswerestudiedunderthreeplantingmethodsattwosowingdatesinasplitplotfieldexperimentwithFyou４９８asmaterial．TheresultsshowedthatlodgingresistanceofartificallyＧtransplantedricewassignifican
5、tlyhigherthanthatundermechanizedplanting,andtheyieldofmechanicaldirectＧseedingricewassignificantlylowerthanthatofthemechanicaltransplantedandtheartificialtransplantedrice．Correlationanalysisindicatedthatlodgingindexwaspositivelycorrelatedwithgravitycenterheight,internodelength,bendingmomentandcon
6、tentsofNandP,andnegativelycorrelatedwithinternodediameterandthickness,culmtypeindex,dryweighttolengthratiooftheofunitinternode,contentsofcellulose,lignin,solublesugarsandK,spikeletnumberperpanicleandgrainyield．Comparedwithartificialtransplantingrice,mechanicaldirectＧseedingandtransplantingricesho
7、wedhighergravitycenterheight,longerbasalinternodesandhighercontentsofNandP,smallerculmtypeindexandRWLI(dryweighttolengthratiooftheinternode)．ThelodgingindexeswerelargerundermechanizeddirectＧseedingandtransplantingdueto
