资源描述：
《氮肥施用量对超级粳稻新稻18号强、弱势籽粒灌浆和稻米品质的影响》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),２０１３,２７(５):５０３－５１０http://www．ricesci．cnDOI:１０．３９６９/ji．ssn．１００１Ｇ７２１６．２０１３．０５．００７５０３氮肥施用量对超级粳稻新稻１８号强、弱势籽粒灌浆和稻米品质的影响殷春渊王书玉刘贺梅薛应征张栩王和乐孙建权胡秀明李习军(新乡市农业科学院,河南新乡４５３００２;EＧmail:yinyuan９２３＠１２６．com)EffectsofNitrogenFertilizerApplicationonGrainFilli
2、ngCharacteristicsandRiceQualityofSuperiorandInferiorGrainsinSuperjaponicaRiceXindao１８YINChunＧyuan,WANGShuＧyu,LIUHeＧmei,XUEYingＧzheng,ZHANGXu,WANGHeＧle,SUNJianＧquan,HUXiuＧming,LIXiＧjun(XinxiangAcademyofAgriculturalSciences,Xinxiang４５３００２,China;EＧmail:yinyuan
3、９２３＠１２６c．om)YINChunyuan,WANGShuyu,LIUHemei,etal．EffectsofnitrogenfertilizerapplicationongrainfillingcharacteristicsandricequalityofsuperiorandinferiorgrainsinsuperjaponicariceXindao１８．ChinJRiceSci,２０１３,２７(５):５０３Ｇ５１０．Abstract:Inordertoexplicitthecharacterist
4、icsofsuperiorandinferiorgrainfilling,anditsrelationshipwithricequalityofsuperjaponicariceXindao１８,afieldexperimentwith７and６Nfertilizerapplicationlevelswascarriedoutin２０１１and２０１２,respectively,onthefarmofXinxiangAcademyofAgriculturalSciences,HenanProvince,Chi
5、na．Thegrainfillingrate,ricequalityandyieldweredeterminedandtherelationshipbetweengrainfillingrateandricequalitywasanalyzed．TheresultsshowedthatthegrainfillingrateatlowNlevelwashigherthanthatathighNlevel．Themaxandmeangrainfillingrateofsuperiorgrainswas３９．５１％
6、and２０．３４％higherthanthatofinferiorgrains,２respectively．Themaxgrainfillingrateunder２５５．０kg/hmNlevelinsuperiorgrainswas１．１４mg/(grain?d),４０．８３％higherthanthatofinferiorgrains．ThemeangrainfillingrateunderzeroNlevelinsuperiorgrainswas０．７４mg/(grain?d),２８?５０％highert
7、hanthatofinferiorgrains．ThegrainweightatactivegrainfillingstageofsuperiorgrainswashigherthanthatofinferiorgrainswiththatunderzeroNlevelbeingthehighest．Thecorrelationanalysisindicatedthatsuperiorandinferiorgrainweightandtheirgrainfillingratewashighlypositive
8、lycorrelatedatpriorＧmiddlegrainfillingstage．Therelationshipbetweengrainplumpnessofinferiorgrainsatmaturestageanditsgrainfillingratewasextremelypositivelysignificant,whilethatofsuperiorgrainswasnotnotab
