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1、本科毕业论文南方夏大豆生育期结构与产量性状关系的研究吴光祥200830010616指导教师年海教授学院名称农学院专业名称农学(信息技术方向)论文提交日期2012年5月7日论文答辩日期2012年4月27日摘要采用广东、广西、湖南、江西、四川共50份受试材料,在常规(3次重复,3行区,行长2.5m,株距15cm,行距50cm)栽培条件下,对生育期结构与产量性状的相关性进行了研究。结果表明:(1)单株粒重、单株粒数最高的是晚熟材料,百粒重最高的是早熟材料;早、中、晚熟材料的花期占全生育期比例与单株粒数均呈正相关;早、中、晚熟材料的生殖生长期与百粒重均呈正相关。(2)各省区的材料间全生
2、育期和单株粒重的差异不达到显著,其它性状有显著差异,这说明地区来源对大豆性状表现有一定影响;广东、广西、江西材料花期占全生育期比例与单株粒数的呈正相关,与百粒重呈负相关。湖南、四川材料的花期占生育期比例与百粒重、单株粒重、单株粒数均呈正相关。(3)总体来说,50份材料的花期与单株粒数呈极显著正相关(r=0.412),生殖生长期和单株粒重呈极显著正相关(r=0.365)。关键词大豆生育期结构产量3RelationshipofGrowStageStructureandYieldofEstivalSoybeansfromSouthChinaWuGuangxiang(Collegeof
3、Agriculture,SouthChinaAgriculturalUniversity,Guangzhou,510642,China)Abstract:50soybeanmaterialsofthefiveprovincesareused:Guangdong,Guangxi,Hunan,Jiangxi,Sichuan.Intheconventionalcultivationconditions(3repetitions,threelinesforeachsubregion,2.5mforeachline,plantspacing15cm,linespacing50cm).Th
4、eobjectiveofthisstudyistoanalyzethecorrelationbetweenthestructureofthegrowthperiodandcharacterofyield.Theresultsshowthat:(1)Thegrainweightperplantoflatematuritymaterialandgrainnumberperplantoflatematuritymaterialarethemostlarge;Thefloweringperiodofallgrowthperiodproportionoftheearlymaturitym
5、aterial,andthefloweringperiodofallgrowthperiodproportionofthemiddlematuritymaterial,andthefloweringperiodofallgrowthperiodproportionoflatematuritymaterialallhavepositivecorrelationwithgrainnumberperplant;Thereproductivegrowthperiodoftheearlymaturitymaterial,andthereproductivegrowthperiodofth
6、emiddlematuritymaterial,andthereproductivegrowthperiodoflatematuritymaterialhavepositivecorrelationwithgrainweightper100grains.(2)Thereisnosignificanceofdifferenceofallgrowthperiodandgrainweightperplantofallgroupmaterialofallprovince,buttherearesignificanceofdifferencebetweenothercharacter.I
7、tindicatethatregionalsourcehasinfluenceonexpressionofcharacter;ThefloweringperiodofallgrowthperiodproportionofmaterialsofGuangdong,Guangxi,Jiangxihavepositivecorrelationwithgrainamountperplant,andthemhavenegativecorrelationwithgrainweightper100grai