FEATURES OF THE CREATION AND USE OF FOREST BREEDING OBJECTS IN THE VINNYTSIA REGION
Abstract
Purpose. Forest breeding objects are an importantsource of obtaining forest seeds of improved breedingquality. These objects are key for growing highly productiveand environmentally resistant forest stands. Along withthis, there are trends towards the deterioration of the currentstate of forest breeding objects. This does not allow tofully use the genetic potential. Therefore, at present, theissue of assessing the state and functional suitability of forestbreeding objects is one of the main ones. The purposeof the work is to analyze the features of the selection and creation of forest breeding objects, as well as assess theircurrent state to increase the efficiency of their use.Methods. The research was conducted on the basis oftheoretical analysis and previously conducted field studiesof forest breeding sites within the Vinnytsia region.Results. As a result of the conducted research, itwas established that the objects of forest selection withinthe Vinnytsia region are represented by forest geneticreserves, “plus” stands, “plus” trees, clonal and seedlingseed orchards, family and archive of clones of the mainforest-forming species – common oak. Most of the selectionobjects are in satisfactory condition. Forest seedorchards of common oak are characterized by low seedproductivity. There is a need to create additional forestselection objects, in particular progeny tests.Findings. According to the results of the conductedresearch, it was established that the forest breeding objectsare mostly in satisfactory condition. Forest seed orchardsrequire measures to increase their seed productivity.The representation of genotypes of “plus” trees in forestbreeding objects is about 30%, which is insufficient. It isadvisable to create progeny tests in different forest conditionsin order to select the best genotypes for their productivityand resistance to environmental conditions.
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