摘要
以金山27为试材,以普通农户栽培为对照,研究高产栽培下春玉米农艺性状及冠层结构.结果表明,高产春玉米产量极显著的高于普通农户栽培,有效穗数极显著高于普通农户栽培,穗粒数和千粒重均较普通农户低,千粒重未达显著水平.高产春玉米穗长、穗粗、穗行数、行粒数均小于普通农户,粒深和秃尖高于普通农户栽培.高产春玉米株高和穗位高都高于普通农户栽培,茎粗、双穗率和空杆率小于普通农户栽培,但均未达到显著水平.LAI全生育期都大于普通农户,在峰值时差异最大,且棒三叶以下叶片的LAI差异最大,尤以乳熟期明显.高产栽培春玉米LOV在吐丝期和乳熟期均大于普通农户,乳熟期棒三叶以上尤为明显.
Using main cultivated JinShan27 as test material and ordinary households maize as the control,we analyzed the agronomic characteristics of high-yield maize.The results showed that the yield of maize was higher distinctly than control,the number of productive ear was more distinctly than control,Grain number per spike and 1000-grainweight was lower than control.Ear length,ear diameter,grain number per-row,row number per ear was less than control,and Grain length and Bald was higher than control.Plant height and ear position-ear length were higher more control,Stem diameter,double ear rate and empty ear rate were contrary.LAI of high-yield maize was greater than control all stage,and differences was the maximum in peak,Bottom leaf area index was different greatly from control,and Milkling stage was significant.Leaf oriented value of high-yield maize was higher more control,top leaf was obvious in Miking stage.
出处
《内蒙古民族大学学报（自然科学版）》
2010年第5期510-513,共4页
Journal of Inner Mongolia Minzu University：Natural Sciences
基金
国家"973"计划(2009CB118601)
内蒙古民族大学科研创新团队计划资助项目(NMD1003)
关键词
春玉米
农艺性状
冠层结构
Spring maize
Agronomic characters
Canopy structure
