Selection bases of developing new varieties of willow family (Salicaceae Mirb.) to create energy plantations

Abstract

Purpose. To develop an algorithm of creation of new highly productive clonal varieties of Salicaceae family representatives with improved agronomic characters that can be used at energy plantationsMethods. Field investigations, laboratory analysis, analytical approach, selection method.Results. Flow chart of selection process with representatives of Salicaceae family included the following stages: the Ist stage – creation of primary families (F0); the IInd stage – creation of the second families, or branches; the 222rd stage – interfamily (individually-familial) selection; IVth stage – familial-group selection; the Vth stage – clonal selection (selection of ramets).Conclusions. Breeding process with the use of complex of advanced methods of selection (individual, familial, group and clonal ones) allows to get model populations with high-frequency of valuable alleles and genotypes and with the high level of genetic variety. Due to a negative multi-stage individual intrafamilial and interfamily selection, cleaning of artificial populations from undesirable forms takes place without the substantial decrease of genetic variety level.