Fruit growing
and viticulture of South Russia

Annotation

The main feature and principal essence of the current stage of agricultural production is the need to increase its efficiency in the face of the need to reduce the consumption of energy resources, while not reducing, but increasing in the productivity of cultivated crops. Today, one way to increase in the quantity and quality of grapes yield and produced wine from it is to apply foliar fertilizers and surfactants in the tank mixtures of pesticides that increase in their efficiency. This article outlines the results of a study conducted in 2015-2016 on the biological regulation as to the application of a liquid complex fertilizer �Nutri-Fait PK� and surfactant �Spartan� in the orchards of winemaking and table grapes varieties in the South Coast and South-Western viticultural regions of the Crimea. The preparations of interest were added to tank mixture of pesticides during the chemical treatment of grapevines in the following phases of grapes plants development: "before bloom"; "after bloom" and "closure of berries into clusters." The results obtained in the course of carried out research evidenced the positive impact of �Nutri-Fait PK� and �Spartan� preparations on the yield and quality of winemaking grapes variety of Cabernet Sauvignon and Kesha table variety. It was found that the three-stage spraying of the vineyards with the preparations under investigation significantly increases in the biomass buildup of the above-ground grapes bush parts (up to 22% as compared to standard). The grapes yield capacity increases the yields up to 9-12 %, as well increases in accumulation of sugar in the juice of the berries by 0,5-0,6 g/100 sm3, thus speeding up the ripening of the grapes in the conditions of the South Coast and South-Western Crimea.

Annotation

At present, the prospect of increasing in the efficiency of protective measures in the vine orchards can be achieved with the development on the modern level of environmental approaches to the improvement of plant protection practices taking into account the features of the resort areas of Crimea. The purpose of our research was studying of efficiency of natural origin preparation of domestic production, the working off of regulations of their application for effective control of mildew, oidium, gray and sour decay, the increase in yilding of grapes orchards that is extremely urgent direction of research today. Laying of experiences and accounting were carried out using the standard techniques in the vine growing and protection of plants. Intensity of diseases defeat of a grapes bush organs in the experiment's options was compared to control option (without processings) and to a standard option (use of chemical fungicides by 100% to norm). The results of studying of the using effeciency of Bactofit, SK and Agat-25K, FP bio-logical agents for control of diseases in grapevine orchards of the South-Western and Southern coast viticultural zones of Crimea in the period of 2014-2016 are presented in this article. On the basis of carried out research the time-limit for the application of the biological protective agents in the integrated system of vines protec-tive measures has been established, taking into account the peculiarities of the culture and the pathogenic pathway of the epiphitotiously hazardous diseases. The data obtained in an experiment show that Baktofit application, SK and Agate-25K, TPS increase in the quantity of grapes harvest of the Muscat Yantarny (for 7,6%), Rkatsiteli (for 8,6% and 13%) and the Muscat Bely (for 11,6% and 10,7%) and improve the qualitative characteristics of these varieties.

Annotation

We carried out a two-year research in the affected by phytoplasma disease (Bois noir) Chardonnay vineyards in the South-West zone of Crimea. In 2014, when 26.8 % of the vine bushes have been demonstrated the symptoms of phytoplasma disease, and the damage degree constituted on average 2.5 affected shoots per bush, we found a significant reduction in the average number of bunches on the affected bushes, specifically by 34.5 %; the average bunch weight was reduced by 23.5 %; the estimated vine yield went down by 50.4 %. In 2015, when 62.7 % of vines showed the symptoms of the disease, and the damage degree constituted on average 3.7 affected shoots per bush, the reduction in the average bunch weight reached 61.7 %, that of the vine yield � 66.7 %. Monitoring of Auchenorrhyncha revealed four native species that can act as phytoplasma vectors spreading the disease from the infected to healthy plants: Hyalesthes obsoletus, Hyalesthes luteipes, Reptalus panzer, Fieberiella florii. The number of the pests was 1-5 samples in a trap during June-September period. When studying the possibility of reducing the negative impact of Bois noir on grape-vines in case of using plant growth bioactivators K-Humate-Na + Gumasporin and Sana-Tam, as well as bactericide Fitoplazmin (water-soluble concentrate) we weren�t able to obtain reliable data on curbing the spread of phytoplasmos with the abovementioned drugs under test rates and frequency of treatments. Removing the affected vine shoots resulted in 14.8 % reduction of the number of affected by Bois noir plants and reduction in the damage degree by 1.2 times. Combining agricultural practices with experimental preparations had, to varying degrees, a positive impact on certain quantitative yield indicators; the influence on sugar content in the juice of the berries has not been established. The obtained results are preliminary; the research will be continued.

Annotation

The article reports the results of multi-year monitoring of zonal peculiarities of development of complex of diseases and pests on grapes plantations of the Crimea under the conditions of climate change, wide introduction of foreign grapevine planting material and significant change of the range of plant protection means. It has been established that the following pests and diseases are wide spread annually in all viticultural zones: downy mildew, powdery mildew, Botrytis cinerea, Lobesia botrana, thrips, Eriophyes vitis; focally develop Schizotetranychus pruni and Tetranychus urticae, Viteus vitifolii, bud pests (Otiorrhynchus spp., Theresia ampelophaga and others); while black rot, black spot, Alternaria spp. and Helicoverpa armigera are characterized by periodic injuriousness. Due to changes in the assortment of insecticides and acaricides applied in the vineyards we can observe the increase in sucking arthropod populations of planting: Eriophyes vitis Pgst., a complex of phytophagous thrips (Thripidae), leaf form of Phylloxera vastatrix. On the other hand, there was a decrease in the spread of spider mites (Tetranychidae). The decline in the level of agric and technical practices applied on industrial vineyards resulted in the tendency to accumulate the bud pests and pests that damage the perennial wood of grapes plants. In recent years the following invasive for the Crimea diseases and pests have progressively developed in the vineyards: Bois noir, leafhoppers (Stictocephala bubalus, Arboridia kakogawana, Scaphoideus titanus). It was found that the following identified aboriginal species of cycads pose have a potential hazard for the stable development of Crimean viticulture: Hyalestes obsoletus Sign., Hyalesthes luteipes Fieb., Reptalus melanochaetus Duf. They are capable to spread the phytoplasma infection.

Annotation

The article summarizes the main results of fundamental research by scientists of the FSBI �VNNIIViV �Magarach� RAS� in the field of viticulture in 2021, conducted in accordance with the Re-search Plan for 2021-2023, which forms the basis of the State task, and the Pro-gram of fundamental scientific research in the Russian Federation for the long term (2021-2030). The results are the stage of development of scientific, methodological and methodic foundations for ensuring the innovative development of authentic viticulture, improving the quality and competitiveness of domestic products. A trend has been established for a constant, progressive de-crease in the viability of grape plants, a decrease in the productivity of the vine, an increase in the intensity of its damage by various diseases, premature or sudden death under the influence of stressors of various nature. To increase the stress resistance of grape plants, the priorities are: selection and creation of resistant varieties and rootstocks by classical breeding methods; regulation of physiological and biochemical mechanisms of stress resistance; development of elements of technology for growing grapes, reducing the negative impact of stressors; formation of adaptive pest control systems. The stud-ies were carried out on the basis of the cen-ter for collective use Ampelographic collection �Magarach�, as well as in the production plantations of the leading wine-growing enterprises of the Crimea using generally accepted and original methods for studying the gene pool of grapes. As a result, digital information databases of the complex of morphobiological characteristics of local grape varieties of the Crimea of the Ampelographic collection �Magarach�, a complex of economic characteristics of local grape varieties of Crimea, sources of valuable biological and economic characteristics, genetic resources of institute �Magarach� grapes and molecular genetic passports of indigenous grape varieties of Crimea were created; the standard of the organiza-tion was prepared � Grapes, fruit, nut-bearing, berry, ornamental crops, water and soil. Determination of bacterial phytopathogens based on polymerase chain reaction; methodology for the development of globular, heart-shaped and torpedo-shaped embryoids for the induction of pol-yploidy and somatic embryogenesis in grapes; digital cartographic model of agroecological optimization of varietal composition and terroir specialization of the viticulture and wine industry of the Republic of Cri-mea; methodological recommendations on agricultural technology for growing new clones of technical and table grape varieties in the Crimea; a list of economically justified agrotechnical measures for updating standard technological maps for the cultivation of vine plantations; initial requirements for a machine for cutting (chasing) grape shoots, loosening (cultivating) the soil; on a tunnel-type sprayer; methodological recommendations on phytosanitary monitoring and control of development of new pests in ampelocenoses of the Crimea.