摘 要 ：从玉米各层根中的一条吸入染料溶液后追索其输往地上各器官的踪迹。从 n 层节根可输往叶片范围为≥n 节可见叶。主胚根输往各叶全部纵向大脉,次生胚根每条只输往各叶的50%纵向大脉,各层节根从不同方向输入后,各自通向相应叶片的特定部位。在茎内,每一条节根吸水后,一般在输入方向的一个局部内上升,输入节位愈高,上升途径愈靠
Abstract:This study concerns the pathways of water movement from each root of Zea mays L.to the stems leaves and reproductive organs.These pathways were followed by using dyesolution absorbed by individual root.Observation showed,solution absorbed by each nth level adventitious root of Zeamays could move up