摘要
Theperformanceandinheritanceof7qualitytraitswerestudiedusingF2ricegrainderivedfrom8×8diallelcrossingmadebyemploying8parentsofdifferentecologicaljaponicaricetypes.Differencesineachtraitamong8parentswerenotobvious,butinF2generation,transgressivephenomenawerefoundinallthetraitsstudied,indicatingthatthegenescontrollingthesetraitsamongparentsweresegregated.Theinheritanceofgrainwidth,grainweight,chalkinessscore(CS),gelatinizationtemperature(GT)andgelconsistency(GC)weresuitabletoadditive-dominantmodel,anddominanteffectcontributedmainlyforthe5traits.Theinheritanceofgrainlength(GL)andamylosecontent(AC)didnotfitintoadditive-dominantmodel,existingepistaticinteractions.Dominantgenesforgrainwidthandgrainweighthadtheefficiencyofdecreasingeffect,anddominantgenesforCS,GTandGChadtheefficiencyofenhancingeffect.Koshihikaricontainedmorerecessivegenesforgelatinizationtemperaturethanothervarieties.Zhendao88hadmoredominantgenesingrainwidthandgrainweightthanothervarieties.Xiushui04possessedmoredominantgenesforGLandGC,andmorerecessivegenesforCSthanothervarieties.
出版日期
2004年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
