摘要
玉米叶面积损失对其生长发育有影响,2001～2002年分别在温室和田间进行了试验。结果表明:①在温室试验中,去叶处理在播种20d以后进行,每隔14d打去2～3片叶,会影响株高、抽雄期、吐丝期、根和地上部分的产量,不影响茎粗及根与地上部分之比。②在田间试验中,在50%的植株抽丝后7d做了6种去叶处理,打去植株所有的叶对果穗干重、子粒中干物质积累、千粒重和产量影响最大;打去果穗以上所有的叶片与打去果穗以下所有叶片对果穗和子粒干物质积累无明显差异;打去果穗以上半数的叶片与对照基本无差异。
Summary corn LA lose as to it’s the growth and development have influence,2001～2002the author proceeds with in the field at the glasshouse respectively experiment,research result enunciation:①experiment the inside in the glasshouse,and go to the leaf to handle in the dibble20ds later on proceedses,and the14ds per Parti-tion that were beated2or3leafs,can affect the stub high,the male ear draw out period yield for,spin silking first pe-riod,the root ascend with ground part.Ratio don't affect the diameter of stems and rooted to divide with ground up-per part.②that the in the field experiment the inside,at50%draw thread empress7ds made6leaf for leaf handle,beating the plant stub having to fuck to ears heavy,the grain inside fuck the material backlog,thousand heavy is biggest with yield influence.Beat the ears above all leaf’s slice and beat the ears below all leaf’s slice fuck the ma-terial backlog with grain to have no the obvious difference to ears.Beat the ears the leaf’s slice and the CK of the above half the number the fundamental to make no difference.
出处
《玉米科学》
CAS
CSCD
2004年第2期52-55,共4页
Journal of Maize Sciences
关键词
玉米
去叶处理
生长发育
干物质积累
吐丝期
Corn
Beat the leaf to handle
Growth and development
To fuck the material backlog
