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 <i>a</i>, <i>b</i>, their sums, lipochromes, an relation of concentration of <i>a </i>chlorophyll an and <i>b</i>, and also the attitude of the general maintenance of a chlorophyll <i>a</i>, <i>b </i>to total concentration of lipochromes in sheet plates of a <i>Betula verrucosa </i>are presented. The general reduction of level of the maintenance of the basic photosynthetic pigments in leaves of trees <i>Betula </i>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 <i>Inonotus obliquus </i>(Pers.: Fr.) Pil.) in reactionary reduction of pigments of photosynthesis is revealed.