INFLUENCE OF SOME FACTORS ON PHOTOSYNTHETIC SYSTEM OF <i>BETULA </i>L.
In article results of researches by definition of degree of influence of some factors of medium on the maintenance of a chlorophyll of phylum a, b, their sums, lipochromes, an relation of concentration of a chlorophyll an and b, and also the attitude of the general maintenance of a chlorophyll a, b to total concentration of lipochromes in sheet plates of a Betula verrucosa are presented. The general reduction of level of the maintenance of the basic photosynthetic pigments in leaves of trees Betula L. undergo to influence of anthropogenic emissions, in comparison with the areas possessing concerning the congenial connatural conditions, is positioned. The greatest lobe of participation of the pathogenic factor (basidial macromycet Inonotus obliquus (Pers.: Fr.) Pil.) in reactionary reduction of pigments of photosynthesis is revealed.