利用扫描电镜研究草甘膦对地果的伤害

为了给地果在绿化上的开发利用以及农田除草提供理论依据，以扫描电镜为主要工具对经过草甘膦处理的地果进行微观结构的观察。研究结果表明：喷施草甘膦对地果叶片表皮细胞造成了阶段性的伤害，经过一定的时间叶片出现不同程度的失绿枯萎，在草甘膦的作用下叶片表皮细胞受损，气孔出现闭合现象，从而对地果的光合及蒸腾等生理作用产生影响。草甘膦对于嫩叶表皮的作用效果比老叶更显著一些。草甘膦对地果具有一定的杀灭效果，对地果在园林绿化中的应用有指导作用。

Effects of Glyphosate on Ultrastructure of Ficus tikoua Bur Epidermal Cells

In order to provide theoretical basis for the development and utilization of Ficus tikoua Bur on greening and farmland weed control, by using scanning electron microscope, the authors studied the microstructure of Ficus tikoua Bur, which was dealt with by glyphosate. The experiment results indicated that glyphosate could cause a periodical damage to the vegetative organ of Ficus tikoua Bur.; wither appeared at different degree of green leaf after certain time. Under the action of glyphosate, leaf epidermal cells were damaged; stomatal closure caused a serious effect on the leaf physicological function, such as photosynthesis and transpiration. The effect of glyphosate was more obvious to the tender leaves than the older ones. The research, which proves that glyphosate of bur, has certain killing effect, will guide the application of Ficus tikoua Bur. in landscape of urban areas.