Yurkevych O. The breeding basics of pine stand productivity increase in Rivne region.

Object of investigation - increase of pine stands productivity and stability in Rivne region by providing of planting material with improved genetic properties. Aim of investigation - development of the background of pine stands productivity increase by providing seed material with improved genetic properties. Investigations were carried out by the methods that are well-known in forest breeding and cultivation. Firstly for the region of investigation population structure of genetic reserves and plus stands of Pinus sylvestris were examined. Growth dynamics of half-sibs progenies of plus-trees with distribution to selective categories were investigated. Anatomy & morphology and cytological indices were studied for the buds of Pinus sylvestris clones and their seed progenies. The relations between growth energy of the progenies of Pinus sylvestris plus trees and particular anatomy & morphology and cytological indices of buds were revealed. Implementation - at creation of high productive pine stands. Sphere (branch) of use - forestry.