Fuente: WIPO "tomato" The invention relates to a polymer composition consisting of components A and B, wherein the component A is selected from the group consisting of polysaccharides - preferably the polysaccharides are starches-, modified polysaccharides -preferably the modified polysaccharides are modified starches-, and mixtures thereof, and the component B is selected from the group of polyurethanes, polyureas, and mixtures thereof, wherein each one of the polyurethanes and polyureas has a glass transition temperature within a certain range and wherein the component B is able to form a film which exhibits certain mechanical properties each one of them within a certain range. Seeds treated with the polymer compositions of the invention exhibited reduced seed dust and excellent seed flowability.