NATURAL SCIENCES

Journal of fundamental
and
applied researches

The relative analysis of birch stands of trees with various morphological CharacteristicsOn occurrence of macromycet Inonotus obliquus (Pers.: Fr.) Pilat

2014. №1, pp. 007-016

Balandaykin M. E. - post-graduate student, Ulyanovsk State University, 42 L. Tolstoy Str., Ulyanovsk, 432017, Russian Federation, 131119892007@rambler.ru

Specificity of influence of various factors of forest assessment on frequency of occurrence of I. obliquus (Pers.: Fr.) Pilat in birch woods of the Ulyanovsk region is considered. The program of researches regarding studying of features of influence of ecological factors on pathogen diffusion to large forests of the Ulyanovsk region concerned influence definitions on frequency of occurrence of a tinder fungus of an oblique class of age, a species composition, crop density, the form, parentage, a quality of locality of a stand of trees, and also phylum of vegetable forest conditions and recreational load degree. The certain tendency in influence of some morphological characteristics of birch stands of trees of the Ulyanovsk federal subject on frequency of occurrence of a tinder fungus bevelled in birch forests is traced. So, for example, prevalence of I. obliquus more low in birch forests of seed natural parentage in relation to natural growth; in two-storied, than single-deck. Occurrence of a xylotrophic mushroom as a whole increases in process of increase of a lobe of participation of a birch in the general formula of composition of a stand of trees, a class of age, a stage of recreational degradation of wood plantations. But decreases with increase of completeness and a quality of locality of a stand of trees (from V to Ia to a class). In more high capacity phylum of wood the wood-destroying mushroom is less propagated, than accordingly in low-productive. It is noticed that to the greatest degree prevalence of xylotrophic basidiomycet in stands of trees autochthonic birch populations is determined by a class of age of plantation, in the least – a typological accessory of birch plantations and their form (vertical frame).

Key words: Inonotus obliquus (Pers: Fr) Pilat, Betula pendula Roth, macromycet, plantation, morphological characteristics