Abstract
The goal of research – signification of influence of the genotype of rootstock varieties on the vegetative and reproductive characteristic of the Purple early (Fioletoviy ranniy) grafted grape variety during adaptation in the field. Observations of research was made with using rootstock varieties - PP 101-14, Kober 5BB, Vierul-3. The influence of the rootstock genotype was introduced on the basis of by the survival rate of bushes, plant growth characteristics of the Purple early (Fioletoviy ranniy) variety, and uvological properties. The least death of bushes was found by usage the rootstock Vierul -3. Was revealed influence of the rootstock genotype on the vegetative measures of the grafted variety. The genotype of the Vierul - 3 rootstock variety was materially affected the leaf-area and leaf-area duration of the bush. Was found that influence of rootstock on the reproductive properties of graft - rootstock combinations. Grafting on the rootstock Cober 5BB foster the increase slightly of yield per Bush. Uvology indicators point at a positive effects of rootstock Vierul-3 on the weight of cluster and berries, the size of cluster and berries, the structure and form of the cluster and total sugars. On-farm research of agrocenosis, is advisable to graft the rootstock Vierul-3 for Fioletoviy ranniy variety.
Highlights
Grapes, like most agricultural crops, are affected by biotic and abiotic factors that change the vegetative and generative processes, plant productivity and product quality
The influence of the rootstock genotype was introduced on the basis of by the survival rate of bushes, plant growth characteristics of the Purple early (Fioletoviy ranniy) variety, and uvological properties
In order to determine the effect of rootstock, exploring was conducted on Vitis vinifera L. varieties, which comprise the backbone of the assortment of European countries
Summary
Like most agricultural crops, are affected by biotic and abiotic factors that change the vegetative and generative processes, plant productivity and product quality. The factor that had a considerable influence on the development of winegrowing was the spread of plant pests of phylloxera. The origin of a native to North America, it is introduced to Europe with planting material in the later of the 19th century. On the Vineland of the Lower Don region, phylloxera spread in the later of 20th century. In most winegrowing regions, Vitis vinifera varieties massing its possible only by grafting on phylloxera-resistant rootstocks of American origin and their hybrids. Research programs in all winegrowing regions are designed to produce on studying the interaction of graft -rootstock. This study was focused on scientific scrutiny the influence of the genotype of rootstock varieties on the vegetative and reproductive characteristics of the Fioletoviy ranniy graft variety during adaptation in the field conditions of the Northern winegrowing
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