Effects of two systemic fungicides: Artea (Propiconazole+cyproconazole) and Punch (Flusilazole) on the physiology and the respiratory metabolism of durum wheat (Triticum durum L.).

The present work aimed at the study of the effects of Artea and Punch; two systemic fungicides on durum Wheat (Triticum durum L. cv. GTA dur).

Toxicity of the ammonium nitrate NH4NO3 on the respiratory metabolism of three biological models: parameciums, mosses and lichens.

The inopportune throws out of diverse substances in the atmosphere, constitutes without any doubt the obvious of environmental pollution by man. Among these substances, we are interested in the ammonium nitrate NH4NO3, nitrate fertilizers widely used in farming in our region - Annaba located in the eastern part of Algeria - and manufactured in the same region. In fact, the excessive fertilization, the intensive spreading of animal faeces and the industrial pollution are the accumulation sources of nitrate in vegetables, drilling and the underground waters.