不同种植密度下糯玉米产量及相关性状研究  

Study on yields and correlated characters of waxy corn under different planting densities

作　　者：陆雪珍[1] 沈雪芳[2] 沈才标[3] 徐晓梅[3] 张文献[1] 

机构地区：[1]上海市农业技术推广服务中心,上海201103 [2]上海市农业科学院作物育种栽培研究所,上海201106 [3]上海市南汇区农业技术推广中心,上海201311

出　　处：《上海农业学报》2008年第2期61-64,共4页Acta Agriculturae Shanghai

基　　金：上海市科技兴农推广项目(2006-4-1)资助

摘　　要：研究了3个种植密度下4个不同行距处理对糯玉米鲜果穗产量及外观性状的影响。结果表明:行距对产量和果穗粗细的影响大于密度因素;随着密度增加和行距缩小,果穗变细,秃顶程度提高;相对降低种植密度或扩大种植行距,有利于叶面积增大。采用4500株/666.7 m2和"0.55 m、0.75 m"宽窄行种植,产量最高,果穗性状佳。The experiment of planting waxy corn was carried out under 3 planting densities and 4 row spacings in order to study the effects of planting density and row spacing on yield and ear characters of waxy com. The result showed that the row spacing had a greater effect on the yield and ear diameter than the planting density. With the density increasing and the row spacing reducing, the ears got thinner and bare tip of ears got longer. Relatively reducing the density or expanding the row spacing was conducive to leaf area growth. Adopting the density of 4 500 plants every 666.7 m^2 and the alternate row spacing of 0.55 m and 0.75 m gained the highest yield and good ear characters in the experiment.

关 键 词：糯玉米 种植密度 行距 产量 果穗性状 

分 类 号：S513.037[农业科学—作物学]