Fruit growing
and viticulture of South Russia

Annotation

The article reveals the need to develop a computer program for the creation and control of the ampelocenoses production potential. This program is necessary for agricultural producers to make the control decisions on the creation and operation of ampelocenoses in order to ensure the competitiveness of produced products. The creation of united database of grape genetic resources and their quality indicators, manifested in the different soil and climatic conditions of the cultivation zones, will make it possible to quickly select the optimal assortment for all crop cultivation zones taking into account climate change, as well as to create the new highly effective variety forms, which is of significant interest for scientific institutions. The computer program being developed is based on spacious scientific knowledge, including data on varieties, the resource agroecological potential of grape growing regions, based on a systematic approach that provides the greatest degree of realization of the factors totality in the production process that determine the stability of fruiting, productivity and quality of grapes. As a result of the research, a system architecture was developed for the prototype of software methods to manage the integrated stability of grape agroecosystems to ensure maximum feasibility of the biological potential and self-reproduction of ampelocenoses under the conditions of technogenic intensification of production and climate change. The results of studies on the development of a database of economically valuable traits of various ecological and geographical origin grape varieties are presented, including a description of more than 80 traits and resource agroecological potential of grape cultivation areas in more than of 20 parameters, as well as the creation of basic models (laying a new vineyard) and operational models (care system for the existing vineyard) for cultivation technologies.

Annotation

The effects of climate change and their impact on agriculture, including viticulture, have became an actual problem. Typical for Russian viticulture are low-temperature stresses in a winter, excessively high temperatures and an acute deficit of precipitation in summer. The studies were carried out on the Anapa (Anapa) and the Don (Novocherkassk) ampelographic collections, 350 km apart. In the Anapa region, a change in air temperature is accompanied by a change in the beginning of the grape vegetation phases at a later date. In the varieties of the Western European ecological-geographical group, there was a reduction in the period from bud break up to the beginning of flowering: in technical varieties for � 9 days, and in the table varieties � for 2 days. The period from the beginning of flowering to the beginning of ripening of berries was shorten for 3 days for technical varieties and for 6 days for table ones. A similar trend is for technical varieties of the eastern eco-geographical group. A tendency to reduce the period from bud break to the beginning of grape ripening for a period of 5 to 26 days has been found for varieties of Western European and Eastern groups as well as for group of the Black Sea coast. In the �Don� area, the beginning of bud blooming has not changed in only 2 varieties (Muscadel, Plavai), in other varieties it occurs 1-4 days earlier. The beginning of flowering did not change for Galan variety, but for Aligote variety it became 2 days later, in all other studied varieties this process began earlier up to 7 days. The duration of the period from the beginning of bud blooming to flowering in 3 varieties did not change, in 6 varieties increased in 1-3 days, for the other 14 varieties � decreased in 1-5 days.

Annotation

In the article are provided experimental data confirming the regularities of changes in the productivity of the table grape variety Victor due to change in the load of bushes with shoots and clusters. Field studies were carried out in the Central Agroecological zone of viticulture of the Krasnodar Region, the scheme of bushes planting is 3.8 × 2.0 m, the formation of bushes is a high-standard two-armed cordon, rootstock is Berlandieri × Riparia SO4. The average annual air temperature is 12.5-13.0 ºC, the sum of active temperatures is 3900-4100 ºC, the maximum temperature during the growing season is plus 40 ºC, the temperature in winter drops to minus 30 ºC. The annual amount of atmospheric precipitation is 700-800 mm. The soils are low-humus, powerful leached chernozems. The variety showed a high responsiveness to changes in the load of bushes with shoots and clusters under this agroecological conditions. The correlation dependence of the total mass of clusters from one bush on the number of fruitful shoots and the number of clusters is medium and high, respectively, r = 0.63 and r = 0.75. The dependence of productivity on the load of bushes with shoots and clusters is high. The correlation coefficient is 0.88-0.93 and 0.86-0.99, respectively. The largest mass of a cluster, 0.757 kg, is formed when the bushes are loaded with shoots of 26 pcs. per bush and clusters in the amount of 10 pcs. per bush. Clusters are close in size to this mass when the bushes are loaded with 21 shoots and 13 clusters per bush, as well as when the bushes are loaded with 16 shoots and 12 clusters per bush, respectively, 0.714 and 0.756 kg. The highest yield of grapes, 14.83 and 14.50 t per ha, is formed with the greatest load of bushes with shoots of 26 and 21 pcs. per bush in combination with a load of clusters in the amount of 17 pcs. per bush.

Annotation

The reaction norm of grapes of introduced varieties convar pontica negr Rkatsiteli and Saperavi in terms of yield capacity parameters to the variability of weather conditions has been established. The stud-ies were carried out in the period from 1997 to 2011 in unstable conditions of a moder-ate continental climate of the Black Sea zone of the first viticulture subzone (BS1, Taman Peninsula) of the Krasnodar region on southern chernozems. By the years of research, the air temperature varied in a wide range: from 7.2 to 24.4 during budbreak, shoot and inflorescences growth; from 15.5 to 23.3 during flower-ing; from 19.2 to 28.7 during active growth of grape berries; from 16.6 to 25.6 during grape ripening; from 5.8 to 28.7 ºC during vegetation. In some years, the temperature went beyond the optimal values and reached a critical level. The absolute max-imum temperature during the period of active growth of grapes raised to +38 ºC. The studied varieties experienced stress three times during wintering with a de-crease in the minimum air temperature in 1997 and 2002 to 20 ºC, 2006 � -24 ºC. The reaction norm according to the yield capacity parameters of the Rkatsiteli grape variety is 77, Saperavi � 113 c/ha in unsta-ble weather conditions. The modification variability of the yield capacity of grapes of the Rkatsiteli and Saperavi varieties was most influenced by the air tempera-ture from the second decade of June to the end of August during the period of active growth of grape berries starting immedi-ately after flowering (r = -0.69, -0.22). The average and moderate dependence of yield capacity was also on the minimum temperature in June-October of the previ-ous year (r = -0.48, -0.51). This relation-ship is determined by favorable conditions for the initiation and differentiation of embryonic inflorescences for the next year's yield. The relationship of yield capacity with the total precipitation was noted during the period of active growth of grape berries (June-August). The effect of precipitation on the yield capacity at other times was insignificant.

Annotation

Quality of extract is one of the most important indicator of the wines of different types. Its content in the wine depends on the grape components and the products of the wine yeast vital activity. The concentration of the extractive grape components depends on the variety, the conditions of its growth and agrotechnology of cultivation. It is established a change in the mass concentration of extractive substances and testing estimation of white and red table wine materials depending on the soil maintenance, the load of grape bushes by harvest, the application of antitranspirants, the exposure of slopes and parts of the bunches used for wine materials. It is shown in our research that for Chardon grapes the turfing of soil in the comparison with the control ��black vapor soil� � a quantity of the extract was lowered on 12-15 %, with processing of grapes by antitranspirant � on 12 %, with the cultivation of grapes only on the Southern slope � on 9 %. In wine material from the Cabernet-Sovinon grapes the index of the extract increased both with soil turfing (by 1,1-1,4 time) and with a change in the load (by 1,1-1,2 times). This index was also higher on the Southern slopes, than that for the control version and for the Northern slopes (26,1 mg/dm3 against 23,1 mg/dm3). For the testing estimation of Chardon wine material the greatest positive influence was shown in the case of grapes processing by Vapor Gard antitranspirant as well the increase in the load of bush. The soil turfing led to an increase in wine material acidity and reduction in its testing estimation. The use of soil turfing, and Vapor Gard antitranspirant as well as the arrangement of bushes on the Southern slope led to an improvement in the organoleptic mer-its of wine materials from Cabernet-Sovinon grapes.