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1、001989J.ShanxiAgric.Univ.学报文章编号:1671-8151(2005)02-0164-04绿豆产量构成因素的相关与通径分析申慧芳,李国柱(山西农业大学文理学院,山西太谷030801)摘要:用相关分析系统分析了与绿豆产量有关的12个农艺性状。相关分析结果表明,分枝数,单株荚数、单株产量、抗倒性和抗病性与产量呈正相关,其中单株荚数、单株产量和抗病性达显著或极显著水平;而株高、主茎节数、荚长、荚宽、百粒重和生育期呈负相关,其中荚长和生育期达显著或极显著水平。通径分析结果表明,12个性状对绿豆产量的直接作用依次为单株荚数>抗病性>荚宽>抗倒性>荚长
2、>株高>分枝数>单荚粒数>百粒重>单株产量>生育期>主茎节数。在高产绿豆新品种的选育中,首先应注重对单株荚数、抗性和生育期的选育,然后再综合考虑其他性状。关键词:绿豆;农艺性状;相关分析;通径分析中图分类号:S5221035文献标识码:ATheCorrelationAnalysisandPathAnalysisonMainCharactersofMungBeanSHENHui2fangeta.l(CollegeofArtsandScience,ShanxiAgriculturalUniversity,TaiguShanxi030801,China)Abstract
3、:TwelvecharacterswiththeyieldofMungBeenwerestudiedwiththemethodofcorrelationanalysisandpathanaly2sis.Theresultsshowedthatnumberofbranchesperplant,numberofpodsperplant,numberofgrainsperpod,yieldperPlant,lodgingresistanceanddieaseresistancewerecorrelatedposivitelywiththeyield.Amongofthe
4、m,correlationcoeffi2cientofnumberofbranchesperplant,numberofpodsperplant,yieldperplantanddieaseresistancewithyieldwassignifi2cantdifference.Plantheight,Numberofjointsofmainstem,podlength,podwidth,100-grainweightandgrowingperiodwascorrelatednegativelywithyield,andthecorrelationcoeffici
5、entofpodlengthandgrowingperiodwiththeyieldwassignili2cantlydifference.Theresultsofpathanalysisshowedthatthedirecteffectoftwelvecharacterswiththeyieldwasnumberofpodsper.Plant>dieaseresistance>podwidth>lodgingresistance>podlength>plantheight>Numberofbranchesperplant>Numberofgrainsper.Po
6、d>100-grainweight>yieldperPlant>growingperiod>numberofjointsofmainstem.WhenhighyieldvarietyofnewMungBeenwasselected,thecharacterofNumberofpodsperplantshouldbetakenintocon2siderationfirst,theresistanceandgrowingperiod,thentocomprehensivelyconsidertherestofcharacters.Keywords:MungBeen;C
7、haracters;Correlationanalysis;Pathanalysis绿豆是我国历史悠久并广泛种植的杂粮作物,但报道所用材料和所处环境不同,所得的结论也随着人们生活水平的提高和膳食结构的改变,绿有差别,分析不全面,为此我们对本教研室18个豆以其丰富的营养保健作用越来越受到人们的青绿豆材料产量构成因素的12个农艺性状和小区产睐,但生产上优良的绿豆品种较少,好多品种混量之间进行了较全面的相关分析和通径分析,以杂,种性退化,产量低而不稳,极大地限制了绿期为以后的绿豆诱变育种中突变体的筛选与鉴定豆产量和品质的提高。为此我们开展了绿豆辐射提供有价值的理论参考。
8、诱变育种工
