正红玉米杂交种（组合）综合评价及其产量构成优势因素分析

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1、万方数据indicatethatthesehybridhavehighlyadaptableandsuitableforawidecultivatrange．TheincreasingyieldofZhenghon92andZhenghon93I1wereimprovingwiththeenhanceofenvironmentindex,meanstheyhavebigyieldimprovingpotential；Zhenghon92andZhenghon9311havemoreyieldimprovingpotentiala

2、siftheycultivateintheareawithenvironmentidexof400kg／667m2．4．Theperformanceofqualityandresistantofthe8hybrids：Zhen曲ongl02andZhenghongl15havethehighestwolumeweightof7729／Land7749／Lrespectively,arrivalthecommoditylevelstandard；forZhenghon9102，zhenghon96，zhenghon9311have

3、thehighestproteinof11．9％，10．8％，10．8％respectively,Zhenghongl02achievetheediblefirstgradestandards；Zhenghon9211,zhenghon9102havethehigheststarchesof79．6％and79．2％respectively,ishighstarchcorn．Zhenghon9102andzhenghon931arrivaledtheprimarystandardincommodity,fodderandindu

4、stry,arrivaledsecondstandardinedible，thatthetwohybridshavehighquality,extensiveuse，goodcommercial，C8／1bethefinematerialinthestarchfermentationandfoodprocessing．Artificialinoculationofdiseaseandinsectresultsshowedthe8maizehybridsisresistenttothemaindiseaseandinsectofm

5、aize．5．Thepotentialpromotionareaandperformanceofproductivityofthe48potentialcombinations：thereweredifferentperformanceofthe48potentialcombinationsinthedifferentecologicalareasrepresentativeplace．Takentogether,thepotentialnewcombinationsZH214andZH253havethewendofsingn

6、ificantincreaseyieldinShuangliu，Ya'anandDazhou，meansthesehybridshavefineecologicaladaptation，andsuitableforawidecultivatrange，carljionthecorrenspondingecologicalareatestofprovincailornationalregionaltest,dopreparethewayforitsfuterepromotion．6．Basedonthecon'relationan

7、dpathanalysisshowed：theyieldcomponettraitsonyieldofzhenghongseries，thehighestcontributionratetotheyieldisrowkernelnumber，followedeardiameter，earlength，earrownumber．Keywords：maize；Zhenghong，hybrid；potentialcombination；Productivity；yieldstability,promotionregional，hete

8、rosisofyieldcomponents万方数据目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯I1文献综述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1-1．1玉米的重要地位⋯⋯⋯⋯⋯⋯⋯⋯⋯