不同密度下玉米郑单958叶面积及干物质积累的研究  

Study on Leaf Area and Dry Matter Accumulation in Different Density of Maize Zhengdan 958

作　　者：毛庆文[1] 吴桂丽[1] 阎立波 陈建新[1] 魏东[1] 黄智鸿[1] 

机构地区：[1]河北北方学院,河北张家口075000 [2]河北省农业科学院,河北石家庄050051

出　　处：《安徽农业科学》2010年第29期16171-16172,16174,共3页Journal of Anhui Agricultural Sciences

基　　金：河北省教育厅项目(2008413);河北省张家口市科技局项目(0801-066C)

摘　　要：[目的]探讨高产玉米品种郑单958在不同密度下叶面积及干物质积累的变化。[方法]在自然条件下,测定郑单958在不同生育时期叶面积的动态变化及干物质积累。[结果]不同密度下,叶面积在抽雄期都达到最大值;而玉米植株干物质积累与生育进程间呈"S"型生长曲线。[结论]在群体干物质积累速率和最终积累量方面都表现出种植密度①>种植密度②>高于种植密度③的趋势。[Objective] The research aimed to study leaf area and dry matter accumulation in different density of maize Zhengdan 958.[Method]In natural condition,dynamic variation of leaf area and dry matter accumulation of maize Zhengdan 958 was studied in different density.[Result] The leaf area of maize was the largest in grain filling and the biomass accumulation of maize plants accorded with S-shaped curve as plants developed in different density.[Conclusion] The dry matter accumulation rate and final accumulation of planting density ① were higher than those of planting density ② and planting density ③.

关 键 词：不同密度 郑单958 叶面积 干物质积累 

分 类 号：S513[农业科学—作物学]