玉米群体整齐度对产量的影响  

Effect of Uniformity on Yield of Maize

作　　者：宋雪[1] 宋碧[1] 钱晓刚[1] 

机构地区：[1]贵州大学,贵州贵阳550025

出　　处：《贵州农业科学》2011年第5期49-51,共3页Guizhou Agricultural Sciences

基　　金：贵州省农业攻关项目"贵州水稻玉米油菜超级品种配套技术体系研究"[黔科合NZ字(2005)3003];贵州省重大科技专项计划项目"贵州省粮食(水稻;玉米)高产科技示范工程"[黔科合重大专项(2009)6001]

摘　　要：为寻找提高玉米整齐度的有效技术措施,采用不同苗龄移栽方式,研究了玉米群体整齐度对产量的影响。结果表明:玉米乳苗移栽,返青期短,苗期植株大小基本一致,株高、叶片大小以及产量结构性状等群体整齐度较高,有利于提高玉米产量;大苗龄移栽,苗期植株大小不一致,群体整齐度差,不利于提高玉米产量。Effect of uniformity of maize on yield was studied by transplanting them in different seedling ages to explore effective technical measures to enhance the uniformity of maize.The results showed that when transplanted in nurseling-seedling age,the regreening stage is short,the plant size in seedling stage is basically uniform,the height,leaf size and yield architecture traits have high group uniformity,this is helpful to enhance maize yield.The plant size in seedling stage is inconformity,group uniformity is bad when maize is transplanted in big seedling age,this is bad for maize yield increasing.

关 键 词：玉米 苗龄 整齐度 产量 

分 类 号：S513[农业科学—作物学]