【摘要】 紧凑型玉米杂交种的高产生理特征。突出表现在穗上叶与主茎夹角小 ,株型紧凑 ,耐密植 ,叶向值大 ,叶面积系数大 ,群体光合势高 ,净光合产物多 ,库容量大 ,经济系数高。紧凑型玉米高产栽培 ,必须充分发挥其耐密性的特点 ,适当增加种植密度 ,扩大群体库容量 ,加强田间管理 ,延长功能叶的有效期 ,增强源的供应能力。更多还原

【Abstract】 Compacted the flat type maize hybrid,the compacted-type have physiology characters including compacted plant type.Large leaf area cofficiente,high photosythesis potential large storage capacity,high economic cofficience and net photothesis yield.These characters the physiologic base on high yield.During the cultivation of compacted-type maize,the density-tolerance characters were considered.We can enhance the plant density and field management to increase the validly of functional leaf and the supply of source.更多还原