Ефективність добору в селекції гречки / Efficiency of choice in buckwheat selection
Journal Title: Вісник Львівського національного аграрного університету. Агрономія - Year 2018, Vol 22, Issue
Abstract
Selection of the buckwheat crop is complicated by the fact that the combination of plants or agrophytocenoses is represented by biotypes, which differ significantly in their growth and development, and also by productivity. The main feature in the structure of the population is the isolation of individual biotypes, and, accordingly, their grouping is the branching zone of the stem. This feature is genetically determined. The proportion of each biotype or grouping that is allocated by the branching of the stem is different. The largest share is taken by biotypes with the branching zone of stems 4 and 5 nodes. The number of biotypes without the branching zone of the stem, with the branching zone of stems 2 and 3, is small, and also a small proportion of the biotypes in the structure of the buckwheat population with the branching zone 6 and 7 nodes. Between all biotypes there is rewinding with the domination of the sign, that is, the branching zone of the stem of the plant from which the pollen is transferred. The research work of buckwheat selection, aimed at increasing the efficiency of selection, is shown. It has been shown that the productivity of buckwheat plants is largely due to the phenotypic component. This greatly complicates the estimation of the genotype by the phenotype. It is proved that the productivity of part of plants, namely the fruiting zone, is much more controlled by the genotype. The selection of plants in the selection of buckwheat is proposed on the basis of productivity of the fruiting zone.
Authors and Affiliations
A. Gorash, R. Klymyshena
Keywords
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