Fruit growing
and viticulture of South Russia

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The article presents the results of research on the effect of foliar fertilizing of the technical grape variety Rkatsiteli with the organomineral fertilizer "Renovation of the Protection brand" on the yield and its quality. The purpose of the research was to establish the optimal application rate of the drug per 1 hectare of vineyard. The research was carried out in OAO AF "Yuzhnaya" of Temryuksky district at the Chernomorets branch on a grafted, fruit-ing, stemmed vineyard, with the formation of a two-sided horizontal cordon. The scheme of the experiment included three application rates of the drug per 1 hectare of vineyard � 1, 2 and 3 kg/ha. Control variant was without processing. Foliar fertilizing was carried out three times � in the phase of isolation of inflorescences and 15 days after the second and third. The flow norm of the working fluid was 800 l/ha. Records and observations were carried out according to generally accepted methods in viticulture. It was revealed that at all application rates of the fertilizer, there was a significant increase in the mass of the bunch, an increase in the yield from the bush and the yield capacity of plantings. However, the greatest excess of indicators compared to the control occurred at the application rate of the drug 1 l/ha, where the mass of the bunch increased by 17.8 %, and the yield from the bush and yield capacity, respectively, by 22.8 and 23.0 %. The sugar content in berry juice increased by 0.9 g/100 cm3 in this variant. The influnce of the use of non�root Fertilizers on the concentrations of the main indicators of the quality of wine materials was determined � the volume fraction of ethyl alcohol, mass concentrations of volatile and titrated acids, sulfur dioxide and the reduced extract, as well as pH. An increase in the reduced extract was found in all variants of the experiment. The application of foliar dressing did not fundamentally affect the concentration of organic acids. There was an increase in the tasting score by 0.2 points in the variant with the use of "Renovation of the Protection brand " in a concentration of 2.0 g/dm3

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The description of new grapes varieties of the NCRRIH&V breeding with high resistance to diseases and frost for qualitative red wine making is presented in the article.

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The modern choose of varieties in the industrial wine growing is directed on the varieties with high competitiveness in the consumer market, at the same time the new highly productive varieties capable to produce the original wines are of interest. For possibility of expansion of assortment of industrial viticulture in the Temryuk district of Krasnodar Region the areas for cultivate of the introduced technical grapes varieties of the Greek breeding are selected. These varieties are early bearing and differ in very high productivity (25-30 t/hectare and more). The varieties are undemanding to soils, grow well on poor, dry and lime soils, differ in high drought resistance. In comparison with the zoned technical varieties of the Black Sea area the grapes varieties of the Greek breeding are more winter-hardy, cold-stable and with high stability to mildew, gray decay and an oidium. Due to noted advantages these varieties are of undoubted interest to deeper studying of features of chemical and biochemical grapes com-position to determine a possibility of varieties cultivation in the conditions of the region and for the choice of the direction of their using. In this work the assessment of indexes of the quality of the grapes mash received from the new grapes varieties of the Greek breeding growing in the conditions of the Taman subband of the Krasnodar Region has been carried out. It is shown that the different terms of grapes harvesting considerably influence the mass concentration of sugars in a grapes mash from the studied varieties, however it is not essential changes the titrable acidity of a mash. The results of the analysis we have been compared with an organoleptic assessment of table dry wine materials, and it has allowed to select the new perspective grapes variety of Singros for production of qualitative table white wines.

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The article presents the results of research of the influence of the new water-soluble foliar fertilizers as Atlant Plus, Nutrivant Plus, Kelik potassium-silicon and complex of microelements (KM) - B, Mn and Zn on agrobiological and technological characteristics of the technical grapes variety of Chardonnay. Research were carried out in the AF CGC "Primorskoye" of the Temryuk District. The experimental setup consisted 5 options: no treatment (control); Atlant Plus - 2 kg / ha; Nutrivant Plus - 1 kg / ha; Kelik potassium-silicon - 3 kg / ha; microelements (In, Zn, Mn) - 600 g / ha. The consumption rate of the working fluid is 500 l / ha. During the growing season the foliar application was carried out in three terms: after flowering, in the growth phase of berries (berry of a pea) and in the beginning of berries ripening. It was found that foliar fertilizing of vines by all tested fertilizers has led to some increase in weight of the bunch and the significant increase in yield from the bush on 4,3-6,5%. Kelik potassium-silicon contributed to an increase in safety factor and fruiting buds, Nutrivant Plus - factor of fruiting, and Atlant Plus and KM - the coefficient of fruitfulness and the number of fruit-bearing buds at least two buds. The use of fertilizers led to a significant increase in the sugar content in the juice of berries and to some reduction in the content of titratable acids. The highest content of chlorophyll (a + b), and the amount of carotene and pigments have appeared in the versions of "Atlanta Plus" and "Kelik potassium-silicon", in which the berries have the highest sugar content. Application of Nutrivant Plus and Atlant Plus helped to improve the quality of wine materials. The highest estimate was provided by foliar fertilizing of bushes by complex of micro elements (boron, manganese, zinc).

Annotation

The soil factor, according to option of many leading native and foreign scientists, is of great importance for a grapes plant, and its influence is shown not only in harvest size, but substantially determines the quality of fresh grapes and products of its conversion, first of all wines. Analyzing the soil maps of the Krasnodar Region, it was noted that often the industrial orchards of vineyards of heterogeneous structure, and a small area can be several different soils, causing a various grapes growing conditions. In this connection, there was a need to study the impact of the specific soil conditions in the grapes plant, harvest and quality of wines. We have carried out a study of Merlot grapes in different soil types, located within the same area of vineyards, with the same agro-technical background and management system. It was found that an increasing in number of shoots and inflorescences, increases in the yield on brown forest soils and more intense growth processes of the Merlot grapes are formed. On black soil the grapes plant increase in plenty of bunches, the fruiting rates and fruitfulness, the sugar content and the acidity of berries is reduced. The research shows that ordinary black soil provides the higher quality of grapes and dry table wine material by increasing in the volume fraction of the ethanol and content of phenolic compounds, including anthocyanins. The carried out research results are of scientific interest for predicting of grapes and wine quality under the different soil conditions.