تأثير الملوحة و عسرة المياه في سمية مبيد الكلايفوسيت لبرغوث الماء Daphnia pulex

الملخص EN

It has studied the effect of toxicity of glyphosate herbicide for waterflea Daphnia pluxe by measuring Meadian lethal concentration (LC50) in (48) hour exposure by using various concentration from the glyphosate graded from (30-5 mg / L), after this it has studied the effect of salinity and hardness on the toxicity of glyphosate, the result of the study appeared that LC50 value of glyphosate on the Daphnia pluxe is (15) mg / L, and the LC50 value increase in high salinity and hardness, this means that toxicity of glyphosate decreases in the high salinity and hardness.