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弗·恩·苏卡切夫认为,研究重要用材树种的各种类型,从中选择、繁殖最好的类型,是林木选种的主要方向。这些也是目前迫切的问题。银白杨的天然林分通常呈群体无性系,或者是单个的无性系。在中央黑土地带保存着这个树种唯一的地段,这是遗传选种最有价值的材料。在霍佩尔河和顿河的河滩里,沃龙涅什省的霍佩尔禁伐区,博古恰尔、达维多夫和巴甫洛夫机械化林场的银白杨,发现了干型和冠型,叶子的颜色和大小不一样的树木,尤其明显的是按树皮把这些类型划分为纵裂类型(典型的)、暗色粗皮类型和梳状类型。
Fern Sukachev believes that the study of the important timber species of various types, from which to choose the best type of reproduction, is the main direction of tree selection. These are also pressing issues now. Poplar natural forest is usually a group of clones, or a single clonal. In the central black soil preserved the only lot of this species, which is the most valuable genetic selection of materials. In the floodplains of the Wapere and Don rivers, the poplars in the Hoopel savannah in the Voronezh region, the silvery poplar in the mechanized forest farms in Bogutchall, Davydov and Pavlov, found dry and crown type , Leaves of different colors and sizes, and in particular the classification of these types by tree bark into the types of fissures (typical), the dark-skinned and the comb-type.