Samoday V. Influence of Scots pine and English oak seed origin to progeny grown at provenance tests in Sumy region

The object is interspecific variability and inheritance of climatypes features in several generations; the aim is studying of Scotch pine and English oak features variability and degrees of their inheritance by І - ІІІ generations progeny depending on a geographical origin of seeds; selection of the most adapted climatypes to north-east Polesye and northern Left-bank of Ukraine conditions; methods - forestry, taxation, tree breeding, biometrical, phenological, mathematical statistics; the new approach - for the first time in Ukraine it was studied the age dynamics of quantitative and qualitative characteristics of a pine and an oak proveniences, were revealed the patterns of inheritance by progenies of quantitative and qualitative features of a Scotch pine and a English oak provenances during three generations; the main include - variability of a Scotch pine phenotypical signs in І - ІІІ generations progeny tests and an in І - ІІ generations English oak progeny tests was revealed; it was confirmed thatin a measure of progression to the east and the south productivity of climatypes of a pine and an oak decreases; the patterns of to inheritance by Scotch pine progeny of provenances quantitative characters for three generations; the best on the base of a parameters complex of a pine and an oak origin were determined; the field is forestry.