معرفي دانه رستهاي علفهاي هرز مهم استانهاي گيلان ، مازندران و گلستان و كليدشناسايي آنها

In this article 90 species of weed seedlings along with their identification keys are introduced from Gilan, Mazandaran and Golestan provinces, which are collected from cereal, sunflower, alfalfa, soyabean, rape and cotion farms. Some crops such as rice is dominant in Gilan, wheat, in Mazandaran and cotton in Golestan provinces, and the effort was made to collect weeds from dominant crops. The list of weed seedlings is provided in the Persian text.