EN
The influence of different concentrations of Goltix 700 SC (a.s. metamitron) on Lemna minor L. is described in this article. The research was conducted under controlled environment conditions (climatic chamber) in Petri dishes. Metamitron at 70 mg/dm3 reduced fresh weight by 91% (dry weight 98%) in comparison with control, but when it was used at 0.7 mg/dm3, fresh weight of L. minor was reduced only by 10% (dry weight 37%). The observation showed that metamitron at 70, 35 and 7 mg/dm3 caused strong injuries, as the plant bleaching and roots reduction.