Variability of the Pinus sibirica Du Tour the different forms allocated at three-year age, on reproductive development

Data of 12-year supervision over the introduction of a Pinus sibirica Du Tour are provided in a reproductive stage of development. It is noted that copies, select at three-year age on category on height and a trunk dimeter, to number of top kidneys differ reproductive development. The largest seyanets (category 3 K), with 3-4 top kidneys (3-4 П) are perspective for selection on early reproductive development, intensity of education anthers and and to a regular crop.