玉米不同基因型籽粒鋅、鐵含量遺傳差異的研究.pdf

1、河北農(nóng)業(yè)大學(xué)碩士學(xué)位論文玉米不同基因型籽粒鋅、鐵含量遺傳差異的研究姓名：高小寬申請學(xué)位級別：碩士專業(yè)：作物遺傳育種指導(dǎo)教師：黃亞群陳景堂20080610StudyonthegenotypicdifferenceofzincandironcontentinmaizeseedMajor：CropGeneticsandBreedingGraduate：GaoXiaoKuanSupervisor：ProfH瑚ngYaQunProfChenJin

2、gTangAbstracteInmisresearchtheZnandFecontentof100parentalinbredlinesandlocationmaterialsofmaizeweretestedtoanalyzethegenotypicdifferences。necombiningabilitygeneticvariance，geneticcorrelation，genotypiceffectandheritabilit

3、yofZnandFecontentinmaizeseedwerestudiedthrough7x7completediallelcrossingselfcrossandbackcrossbyusingsevenmaizeinbred1ineswithdifferentZnandFecontentT11eresultsshowed：1Accordingtotheanalysisdatumof100maizeinbredlines，theg

4、enotypicdifferencesofZnandFecontentinmaizeinbredlinesweresignificant。TherangeofZnFeandphyticacidcontentwere7204320m啦g，I20053。20mg&gand047094mgYg，respectively強eZ曩contentofYuanhuang。theFecontentofS0073andthephyticacidconte

5、ntofH019werethehighestinalloftestedinbredlines。Zi330wasthehigherZnandFeandJowerphyticacidinbred。2Ill7parentalinbredlinesforcompletediallelcrossing。theZncontentofinbredl78whichwas2375m趴gandtheFecontentofinbredZi330whichwa

6、s27。50mg／kgwerethehighest，respectivelyAmong42hybrids，theZncontentofthehybridZi330Luyuan92whichwas2475mg&gandtheFecontentofhybridZi330xZheng58whichwas24OOmg／kgwerethehighest，respectively3ThegeneralcombiningabilityofZnandF

7、econtentintheinbred1inesl78andZi330werehigherthanthatofotherinbredlineswhichindicatedthatthe178andZi330CanincreaseZnandFecontentthroughbreedingThenon—additivegenewasimportantforZnandFecontentinmaizeseed。4。AccordingtotheZ

8、nandFecontentof7inbredlinesin2005，2006and2007，theCVanalysisindicatedthatthestabilityofZnandFecontentwasdifferentamonginbredlinesandtherewasthebeststabilityforZnandFecontentinDan3405Theestimatesofgeneticvarianceindicatedt

9、hatthegenerationofallthekerneltraitsandZn，F(xiàn)econtentwereaffectedbytheseed’Sembryoeffect。endospermeffectandmaternaleffectsimultineously；maternaleffectwasthemaineffectsofthetraitsincludingZn，F(xiàn)econtentandseedtraits，incontras