Fruit growing
and viticulture of South Russia

Annotation

The article presents the results of the institution�s research work obtained in 2023. Research is focused on solving problems: accelerated creation of new varieties of horticultural crops based on the mobilization of bioresource collections using molecular genetic methods and digital technologies; ensuring environmental and economic sustainability and optimal productivity of perennial agrocenoses, as well as the quality and safety of preserved plant agricultural raw materials based on biologization and digitalization of technological processes. An analysis of the effectiveness of scientific and technical activities is given according to the criteria of research, publishing, publi�ation, inventive activity, innovative, educational and financial and economic activities of a scientific institution. As a result of R&D, 115 completed developments of fundamental importance have received, forming the methodological and methodical basis for the creation of scientific and technical products of a priority applied level. Fundamentally new developments in applied research in the fields of knowledge relevant to the scientific institution were 81 developments that provide improvement in the quantitative and qualitative indicators of biocenotic and production processes in fruit and vineyards, technological processes during storage and processing of agricultural products. The gene pool is preserved � 7,253 samples of fruit, berry, nut crops and grapes, replenished with 127 varieties; clones were selected and 7 donors were identified and 53 sources for creating new varieties that combine high potential productivity, winter hardiness, drought resistance, sustainability to the most harmful diseases and pests. The State Register of Breeding Achievements approved for use in 2023 in the North Caucasus (6) region includes 3 varieties of apple trees, one grape variety, one clonal rootstock of small stone fruit crops, a rose variety bred by the scientific institution. Output products are registered in the USAIS electronic accounting database in the form of intellectual property for 99 completed developments. Regulatory documentation has been developed in the form of organizational standards, technological instructions and technical conditions for 37 completed developments.

Annotation

The article summarizes the main results of scientific research conducted by scientists of Anapa ZESV&W � branch of FSBSI NCFSCGVW in 2023 in the performance of the State task, aimed at the search, mobilisation, conservation, study and replenishment of gene resources of grapes, development of a method of analysis of vegetation indices of ampelocenoses according to long-term satellite data and obtaining new knowledge about the regularities of the influence of biotic and abiotic factors of growing grapes, as well as technological methods of wine production on changes in the biochemical composition of grapes. The researches were carried out in plantations of the center of collective use Anapa ampelographic collection and production plantations of grapes of Krasnodar region by generally accepted and adapted methods. As a result of fulfilment of the thematic plan, 7 completed developments of fundamental and 4 of priority-applied importance were obtained, including: 5 sources of breeding-valuable traits, 2 elite forms, 1 standard operating procedure for growing hybrid grape seedlings (SOP 00668034-005-2023), 1 database (Certificate of state registration of database � 2023623958 from 14.11.2023, application � 2023623768 from 08.11.2023), 1 computer programme (Certificate of state registration of database � 2023623958 from 14.11.2023, application �2023623768 from 08.11.2023), 1 technological instruction (Technology of production of wine and wine in bulk (wine material) dry white �Barkhatnyi Muscat� (TI 11.02.12-185-00668034-2023). 2 patents have been obtained based on the results of research. In general, the scientific institution maintains 21 objects of intellectual property, 14 of them � for varieties. The benchmark for fulfilment of the R&D plan on publication activity according to the state assignment for 2023 was a publication score of 7.0. The actual implementation was 11.6 points. The total number of published papers is 24, 11 of which were included in the RSCI core.

Annotation

The main results of scientific research of the Krasnodar research Institute of storage and processing of agricultural products � branch of the FSBSI �North Caucasian Federal scientific center of horticulture, viticulture, winemaking�, obtained in 2023 by scientists of the Institute in the implementation of the State order in 4 areas of scientific research, as well as data reflected the publication fecundity and patent activity. Research work was carried out in accordance with the PFSR in the Russian Federation for a long-term period (2021-2030) in the direction: 4.4.1 Storage and processing of agricultural products. Ensuring the priorities of the PFSR in the Russian Federation for the long term (2021-2030) provides for the need to conduct scientific research, the purpose of which is to develop algorithms for predicting the properties of biologically active substances based on molecular modeling methods, to identify patterns of controlled transformation of dietary fiber complexes, phospholipids and carotenoids using biotechnological and physico-chemical methods and, based on the identified patterns, to develop technologies for the production of beet pectin, modified phospholipids, lycopene and beta-carotene, as well as scientific research, aimed at identifying the mechanisms of microbiological, physiological, physico-chemical and biotechnological processes occurring in preparation for storage, storage and processing of vegetables (zucchini, eggplant, carrots and beets, tomatoes, leafy and cabbage vegetables), fruits (apples, grapes), for the development of resource-saving storage technologies based on the identified patterns. The results of scientific research have been published in 35 scientific articles, among them 11 articles in journals included in the core of the RSCI, in journals included in the list of the Higher Attestation Commission under the Ministry of Education and Science of the Russian Federation � 9 articles, in journals indexed in the international information and analytical citation systems Scopus � 3 articles, in materials and collections of scientific and practical conferences � 12 articles. 1 methodological recommendations have been published. Comprehensive score of publication performance: plan � 9.6, fact � 14.4. According to the results of the scientific research carried out, 6 patents of the Russian Federation for inventions were obtained and 2 certificates for computer programs, as well as 6 applications for alleged inventions were submitted to the FIIP.

Annotation

The article presents the main results of the research work of scientists of the DBESVVG � branch of NCFSCHVW, carried out in accordance with the State Task for 2023 and the Research Plan for 2022-2026 on the basis of the PFSR of the state Academies of Sciences for 2021-2030. The research results reflect the main directions of the research station: genetic resources, breeding and variety studies of grapes, vegetable and subtropical fruit crops; development of a methodology for the creation and operation of intensive own-root plantations of grapes in the phylloxera infestation zone; obtaining environmentally safe products of grapes, vegetables and subtropical fruit crops. The main objectives of the research work are the creation of new genotypes of grapes, subtropical fruit and vegetable crops based on the mobilization of the potential of wild species, native and high-value introduced varieties with high productivity, product quality and resistance to abiotic and biotic stressors; improvement of the methodological base to accelerate the breeding process of grapes; identification of mechanisms for the realization of the genetic potential of indigenous and promising introduced grape varieties against the background of phylloxera infection, mechanisms for the formation of genetic and functional tolerance to the pest and scientific (biological) foundations for the creation of intensive own root plantations of grapes; identification of patterns of accumulation of dry matter and BAS in raw materials obtained from young broccoli plants and secondary products of grape and tomato processing depending on from varietal characteristics, stages of development, harvest period, processing methods; development of scientific and applied bases for obtaining environmentally safe raw materials for the production of functional food products and dietary supplements intended for the prevention of cardiovascular and oncological diseases. The research results expanded the base of genetic sources and methodological approaches for the creation of adaptive grape varieties in the changing climatic conditions of southern Russia, allowed to expand methodological approaches to the creation of root-related grape plantations and management of resistance to stressors, confirmed the fundamental possibility and effectiveness of hormonal management of the development of grape plants from the first year of life, as well as the quality of raw grapes, tomatoes and broccoli to create environmentally safe functional food products and dietary supplements, focused on the prevention of socially significant diseases.

Annotation

Research is presented that contributes to an increase in the production of domestic grape and wine products, including in the system of organic farming. The object of research is grapes of native, classical and breeding varieties. The research was carried out on the basis of the Center for collective use of the Ampelographic collection �Magarach�, as well as in industrial plantations of the Crimea according to generally accepted and original methods. Characteristics of 50 varieties for the database, 4 sources of valuable traits were obtained, genotyping of wild grapes was performed, 99 allele variants were identified. Optimal concentrations of substances for the development of proembryogenic calluses and cells in suspension cultures were selected. The influence of biologically active substances on the development of heart shaped and torpedo shaped embryos has been established. The obtained 6 transgenic lines of the Podarok Magaracha variety were adapted to in vivo conditions to assess their cold resistance and frost resistance. In the vegetative collection of plants in vitro, samples are maintained under conditions of active and slow growth. An aseptic culture of 14 grape varieties was obtained. The molecular diagnosis of the latent form of phytopathogens of plant material after the recovery procedures was carried out. The biovar Agrobacterium tumefaciens was identified by the method of molecular diagnostics. During molecular diagnostics, the Rupestris stem pitting virus was detected in the samples. New knowledge has been gained about the dynamics of changes in the quality indicators of grapes depending on the variety and region of cultivation against the background of a complex of agro-climatic parameters and indices used to isolate terroirs. Varietal-rootstock combinations have been identified. The formation of datasets has continued in order to train neural networks for the detection of harmful organisms and pathologies of the development of grape plants. The technology of organic viticulture production for autochthonous varieties and varieties of the Magarach Institute breeding has been tested. The technology of storing table grapes based on the use of calcium-containing preparations has been optimized. For the first time, an information technology of cross-platform integration has been developed for the implemented hardware and software complex for photo-fixation and neural network detection of the number of pests in specialized �traps�.

Annotation

The article presents the results of research activities for 2023 of the Federal State Budget Scientific Institution All-Russian National Research Institute of Viticulture and Winemaking Magarach of the RAS in the field of winemaking, carried out in accordance with the Program of Fundamental Scientific Research in the Russian Federation for the long term (2021-2030). The methodology of wine quality management with ecostatus has been created, aimed at revealing the individual characteristics of wines caused by natural factors and reducing the risks of negative effects on humans. Promising yeast strains have been identified: Steinberg, Champanskaya G-14, ShM-30, Novocimlyanskaya 3 with a description of their taxonomic affiliation, morphological and physiological-biochemical properties. Two strains of O. oeni active acid-reducing agents are recommended for practical use. The application of technology for the production of young sparkling wines of Crimean autochthonous grape varieties: Kokur belyi, Sary Pandas, Soldaiya and Kefesiya is justified. The system of criteria indicators for assessing the quality of grapes for the production of high-quality cognac distillates and cognacs is substantiated. A working collection of 63 natural strains of lactic acid bacteria has been formed. The optimal technological factors of the process of single-stage extraction by infusing with a food water-alcohol solution of green grape shoots of the Vitis vinifera, Vitis abrusca species have been established, allowing to increase the yield of total polyphenols by at least 2.6 times for the production of functional products. The most optimal technological modes of cold treatment of dry and fortified wine materials have been established to substantiate the constructive solution of an energy-saving installation for the purpose of cold treatment of wine materials based on the study of the main factors affecting the mass transfer process of potassium bitartrate crystallization. The obtained results of research work contribute to improving the quality of domestic wine products and expanding its production, including winemaking with ecological and geographical statuses, the production of domestic cognac and grape processing products of a functional orientation. The introduction of scientific developments into production will increase the competitiveness of domestic wine products, accelerate import substitution and ensure the country's food independence.

Annotation

The article presents the results of scientific research conducted by the ARRIV&W � branch of the FSBSI FRARC in 2023. As a result of the research, new knowledge was obtained in the field of viticulture and winemaking, data was obtained on the agrobiological potential of autochthonous and introduced varieties in the Don ampelographic collection named after Ya.I. Potapenko, systematization and digitalization of ampelographic resources data was carried out, 3 databases of grape ampelographic resources and the conditions of their growth were created. Varieties resistant to harmful organisms have been identified. Recommendations on the variety assortment and direction of use of autochthonous and introduced varieties have been developed. A method for storing grape plants in in vitro culture, methods for forming a collection and long-term non-transplant storage of grape plants in in vitro culture, ensuring non-transplant storage of microplants for up to 10-12 months have been developed. Breeding material was obtained: 25 sources of valuable traits (large size, productivity, resistance to mildew), 21 seedlings were selected as elite. Two grape varieties were submitted to the State Varietal Testing. An improved technology for obtaining basic planting material has been developed. The technology of adaptation to non-sterile conditions has been improved. Technologies for the production of planting material using PAS and elicitors have been developed. Seven modifications of high-standard grape formations have been developed, and optimal agro-technical parameters for cultivating grapes under various cultivation methods have been determined. Based on the analysis of geophysical, geological, climatic and soil characteristics, experimental data were obtained on the zoning of vineyard lands in the Rostov region, the determination of ecological, agrobiological, technological parameters that determine the terroirs of the Rostov region, the development of technologies that improve the quality wine products.

Annotation

At the present stage, with an increase in the volume of consumption of grape-growing products, it is necessary to carry out a monitoring forecast of the possibility of its production for each individual variety or scion-rootstock combination, depending on edaphoclimatic conditions and cultivation technology. This is possible only if predictive models of the behavior of the grape variety or its scion-rootstock combination are developed in the grafted culture in various ecoagrobiocenoses. The purpose of the study was to consider methodological approaches to the creation of mathematical models for predicting the behavior of an individual variety or groups of grape varieties, depending on the abiotic and agrotechnological characteristics of cultivation. To achieve this goal, a previously created database was used, obtained during an experiment conducted on the basis of uterine plantations and an open grape school of the Institute "Agrotechnological Academy" of the V.I. Vernadsky Crimean Federal University, collected in the period from 2018 to 2021 and subjected to multidimensional regression analysis using the developed program. The total number of items included in the database is 1,860. (31 parameters). The research proved the possibility of developing regression models for predicting productivity using nonparametric digital introduction of varieties, as well as environmental factors. It is established that regression models characterizing the quality of the vine, taking into account varietal characteristics and weather conditions, can vary depending on a particular variety. Thus, a similar model for the Cabernet Sauvignon variety is fundamental with a multiple correlation coefficient of R = 0.9866, and for the Syrah variety it is logarithmic at R= 1.0000. Promising possibilities and ways of developing digital (mathematical) models characterizing individual varieties or groups of varieties by origin according to their productivity, depending on edaphoclimatic conditions, production technology, as well as quality parameters of manufactured products are considered.

Annotation

Recently, the task of updating the walnut assortment with new adaptive and high-quality varieties of domestic breeding has been solved, since foreign varieties cannot fully realize their biological potential in the conditions of the North Caucasus. In order to solve the issue of import substitution, it is necessary to create competitive, highly productive varieties with lateral fruiting, adaptive to unfavorable factors. At the same time, an extremely important characteristic of the variety is the quality of the fruit. The article presents the results of research on the search for promising forms of walnut. During the route trips, a preliminary assessment of the studied samples was carried out for the presence of lateral fruiting and fruit load, as a result of which 11 promising forms were identified for assessing the morphometric characteristics and quality of the fruits. All 11 selected forms of walnut are valuable for breeding and can serve as sources of economically useful traits (lateral fruiting, large fruit, high percentage of kernel yield, light, well-filled kernel, thin shell). Forms � 1, � 3, � 4, � 5, � 6, � 7, �. 8, � 10 can be considered the most promising in terms of the complex of phenotypic characteristics of fruits. These samples have an average (� 1, � 5, � 7, � 8) and high (� 3, � 4, � 6, � 11) percentage of kernel yield, good kernel extractability, kernel completion and can be used in breeding work, such as sources of economically valuable traits.

Annotation

The main breeding techniques used in the 50s of the 19th century by breeder F.M. Zorin � creator of the Friendship Tree, candidate of agricultural sciences (1944), are considered. Fyodor Mikhailovich developed valuable varieties of mandarin oranges, grapefruits, lemons, plums, figs, and hazelnuts. Author of more than 40 scientific papers. He was awarded the State Prize for the creation of new varieties of fruit plants. This article shows theoretical research and practically used methods for breeding new varieties of citrus fruits. The basis of his research was vegetative hybridization (from Greek �hybris� � inbreeding) � the production of hybrids by grafting. Zorin F.M. paid a special role in the breeding work to �tree gardens�, which were of both scientific and industrial importance. Fruits from such a tree could change shape, size, color and ripening time. At the same time, he paid attention not only to the selection of the scion, but also the rootstock. As a result, such a tree had many trunks, and the crown consisted of numerous varieties and species of three genera � Citrus, Fortunella, Poncirus of the Rutaceae family. Almost the entire Pomeranian subfamily (Aurantioideae) grafts onto each other and is highly compatible. It is important to take into account varietal characteristics: timing of flowering and ripening, as well as their biology. The main advantages of citrus �tree-gardens� are the saving of garden space, the aesthetic appearance of the trees and originality, as well as the ability to obtain more varieties per unit area.

Annotation

The increase in high-temperature stress in recent years during the summer growing season complicates the realization of the production potential of the apple tree. Therefore, it is very relevant to use scion-rootstock combinations based on rootstocks with high drought resistance in creation mother-cutting orchards of apple trees in the �Basic� category. In the conditions of Krasnodar, the summer months of 2018-2023 became hotter, which is confirmed by data on the excess of the average monthly temperature over long-term values. July was the hottest in 2018, 2020 and 2021. (38.0, 38.0 and 36.3 ºC, respectively). In August, the excess of the long-term norm was greatest in 2018, 2021 and 2023. The trend of increasing temperatures in the autumn months has led to a lengthening of the growing season and a decrease in the resistance of apple plants to unfavorable overwintering conditions, which can negatively affect the quality of cuttings. The purpose of the research was to identify the most adaptive apple tree rootstocks for use in mother-cutting plantings of the �Basic� category. We assessed the drought resistance of the most common introduced apple rootstocks M 9, MM-106 and the rootstock breed by FSBSI NCFSCHVW SK 2U under conditions of high-temperature stress during the summer growing season. Leaf water content in particularly hot years (2020, 2021, 2023) was predominantly higher in the M 9 and SK 2U rootstocks. The best water-holding capacity of leaves was observed in the rootstocks M 9 and SK 2U, the worst � in the rootstock MM-106. Preference should be given to the semi-dwarf rootstock SK 2U when designing mother-cutting apple tree plantings of the �Basic� category. SK 2u will be able to maintain the intensity of growth processes and ensure the production of cuttings of a standard size and the required quality in greater quantities under conditions of summer high-temperature stress than mother trees on a dwarf rootstock M 9 with a smaller crown volume than on SK 2U.

Annotation

In connection with the extension of areas under vineyards, it becomes necessary to use rootstocks, resistant to certain soil and climatic conditions (high content of active lime and salts in the soil, drought). Growth of the assortment of rootstocks available for propagation is one of the most important strategies of domestic nursery farming development, along with the production of improved planting material and better performance of its quality indicators. Today it is important to optimize clonal micro-propagation technology for promising grape rootstocks in order to increase net reproduction while maintaining the genetic identity of planting material. The purpose of the work was to study the dynamics of morphogenesis of grape rootstocks in the system in vitro to optimize the technology of clonal micro-propagation, taking into account the genetic specificity of particular genotypes. The study materials were the in vitro plants of grape rootstocks: Fercal clone 242, Ruggeri 140, and Gravesac (clones 11 and 12). The methods accepted in biotechnology and developed in the Breeding Department of the Institute Magarach were both used in the process of research. Cultivation was carried out on PG medium supplemented with NAA (α-naphthylacetic acid) 0.05 mg/l. The results showed that the dynamics of morphogenesis of rootstocks Fer�al clone 242, Gravesac clone 11 and Gravesac clone 12, analyzed on the basis of net propagation, did not differ significantly by varieties, with the exception of the second passage. The study of morphogenetic potential of Ruggeri 140 rootstock bud made it possible to reveal the dependence of net propagation on the line, it was especially noticeable in the first passage. Separate lines showed high net propagation in the second passage. The average indicator value for all lines was 2.59. In general for all rootstocks, similar results were obtained in successive passages, indicating a tendency for net propagation to be decreased. In order to increase the efficiency of technology, it is necessary to optimize the conditions of cultivation for industrial propagation, taking into account the genetic characteristics of every rootstock.

Annotation

In 2022-2023, in the conditions of the Black Sea zone of the Krasnodar region (OOO �Abrau-Durso�, Novorossiysk), an agrobiological study of the effectiveness of using foliar top dressing of grapes with aqueous solutions of the BioconcentrateZ effluent was carried out using field experience. A new, environmentally friendly, safe organic fertilizer was obtained using a biotechnological method of metangeneration with the participation of anaerobic bacteria by-products of animal husbandry, as well as compost mixtures based on them with plant biomass. In accordance with the characteristics of the composition of the drug, "Bioconcentrate-Z" consists mainly of humic and fulvic acids. The fertilizer also contains a complex of macro- and microelements, phytohormones (in micro quantities), growth regulators, strains of living rhizospheric soil microorganisms, amino acids. The drug is non-toxic, does not contain heavy metals, meets the requirements of GOST 33380-2015 "Organic fertilizers. The effluent. Technical conditions", is intended for use in the system of organic and biologized agriculture based on international standards of organic agriculture. As a result of studying the effectiveness of foliar treatment of grape plants with the "Bioconcentrate Z" effluent, the prospects of using the method of increasing plant stability and productivity against the background of the negative influence of abiotic factors according to the criteria were revealed: assimilation and metabolic activity of plants, economic productivity, dynamics of accumulation of dry substances by berries, commercial quality of the yield. Against the background of the use of the drug, in comparison with the control variant (without treatments), a higher assimilation activity of leaves during the summer period of photosynthesis depression, an increase in the content of organic acids, phenolic compounds, f ree amino acids, including the osmoprotector proline, was established. The increase in yield in 2022 and 2023 was obtained mainly due to an increase in the number of fruiting shoots per bush and the mass of the bunch due to its higher density.

Annotation

The article considers the issue of loading bushes of seedless grape varieties with shoots and bunches in the world practice. The analysis is presented on the timing and length of pruning shoots, the load of bush by shoots, the load of bushes by bunches and methods for regulating the compactness of bunches of seedless grape varieties. The timing of pruning regulates the growth strength of shoots and the maturation time of early seedless grape varieties. Experiments on the timing of pruning often combined with subsequent treatment with growth regulators to increase yields. The length of the pruning of shoots affects the condition and death of the buds, the timing of the passage of phenological phases, productivity and quality of seedless varieties. Variety specificity and pruning dependence are noted: some varieties prefer short pruning (Perlett in India, White Seedless and Red Seedless in Iran), some � long (Beauty Seedless in India, Kishmish Batir in Uzbekistan, etc.). With an increase in the number of shoots per bush, yield capacity increase, however, the quality of grapes decreases, which also happens when the load of bunches increases. For the Jumba Seedless variety, despite the high performance with a low load of bushes with bunches, a higher one is recommended for an optimal ratio of productivity and quality. Thinning of bunches is also a common technique for regulating yield and quality, however, it is necessary to take into account the timing of thinning � too early removal of part of the inflorescences can lead to the formation of an excessively loose bunch, as in the BRS Vitoria variety in Brazil. Studies of the load of bushes of seedless grape varieties with shoots and bunches are relevant, especially in view of modern climate changes and increasing demand for high-quality products. Such studies are few in number in Russia, which requires closer study for the development of table seedless viticulture.

Annotation

The article presents the actual results of observations on the prevalence of sugescent pests in the Rostov region, the dynamics of abundance, population, and the peculiarities of the phenological development of pests on technical varieties, depending on meteorological conditions. It is noted that an air temperature of +14 ... +30 ºC and a relative humidity of 52 % are necessary to maintain viability and fertility. The eggs of the buffalo ceresa leafhopper overwinter in the branches and trunks of trees of woody species, often in young annual shoots. The female ovipositor cuts the bark and lays eggs in two rows of 5-11 eggs. Damage by the buffalo ceresa leafhopper causes a violation of the flow of nutrients to the tops of shoots, weakening and a sharp decrease in their growth. The rose leafhopper gives up to 4 generations during the summer. Damaged leaves turn yellow, photosynthesis processes are disrupted in them, plant nutrition deteriorates, which affects the reduction of economically valuable indicators. The presence of sucking pests increases the risk of spreading viral diseases. Insecticides and phytosanitary monitoring are most effective in fruit-bearing vineyards only in combination with high agricultural techniques of cultivation. In this connection, there is a decrease in yield losses and environmental pollution with chemicals. Therefore, it is necessary to deal with weeds in a timely manner, to carry out maintenance work to ensure good ventilation of grape bushes, to regularly carry out phytosanitary monitoring of the population with sugescent pests and diseases, to carry out row-to-row tillage. Chemical treatments are necessary only if the threshold number of pests is exceeded. The article provides suggestions on how to contain the number of pests at a low level to obtain an environmentally safe grape yield.

Annotation

Pear psylla Psylla pyri L. it is one of the main pests of pears worldwide. Decisions on the timing of preventive treatments and the choice of plant protection products used are made on the basis of regular monitoring of the stages of phytophagan development and taking into account the specifics of the action of insecticides on a particular stage of pest development. The article analyzes the range of insecticides allowed on pear against pear psylla, which is represented by preparations from 8 chemical classes. To reduce the resistance of pear psylla to the used pesticides, it is necessary to expand the range of broad-spectrum insecticides against this phytophagan. In this study, insecticides with larvicidal action, such as Voliam Flexi, SC, Lirum, SC, Lufox, EC, were tested in laboratory conditions. The characteristics of the used pesticides are given and the mechanisms of their action are described.Samples of annual pear growth were selected in the Prikuban zone of the Zakuban horticulture subzone of the Krasnodar region, Ust-Labinsk district. As a result of the study, it was found that the following pesticides have the best biological efficacy against nymphs (first-third age) of pear psylla: Voliam Flexi, SC with a consumption rate of 0.5 l/ha and Lirum, SC 1.5 l/ha. On the seventh day, they showed a maximum biological efficacy of 100 %, which was at the level of the standard preparation Movento Energy, SC. In this experiment, Lufox, SC had low efficacy, due to the fact that the drug has a longer mechanism of action, it takes 10-12 days for a good effect. We recommend using the data obtained in the case of registration of tested preparations for the control of pear psylla.

Annotation

Grape berries, which contain organic substances, vitamins, amino acids, minerals, aromatic substances, have valuable taste and nutritional properties. An important source of biologically active substances are the pulp, skin and seeds of grape berries containing a significant amount of essential components. The purpose of the work is to determine the biochemical parameters: biologically active, mineral and aroma-forming substances in the structural elements of Narma and Rkatsiteli grape varieties cultivated in Dagestan. A capillary electrophoresis system was used to determine vitamins, composition and number of cations. The research was carried out on the device �Kapel 104T�, RF, NPF LUMEX. The aroma-forming components in the experimental samples were identified using a gas chromatograph �Crystal 2000M� (RF). The mass concentration of antioxidants was measured on the device TSVET YAUZA 01-AA, (RF). The total amount of vitamins and vitamin-like substances in the autochthonous Narma variety was: in the pulp - 0.7123 mg/dm3 , in the skin � 3.4101 mg/dm3 and in the seeds � 3.7827 mg/dm3 . The total concentration of mineral elements in the skin of the studied grapes (Narma �33,2 mg/dm3 , Rkatsiteli � 20,8 mg/dm3 ) is higher than in the pulp and seeds. Significant total amounts of antioxidants were found in the seeds of the studied grapes: Narma � 6.71 mg/dm3 , Rkatsiteli � 8.51 mg/dm3. High concentrations of aroma-forming substances were determined in the skin and seeds of berries of the Narma variety � 376.26 and 253.71 mg/dm3 , and in the Rkatsiteli variety the content of these compounds was 82.34 and 91.00 mg/dm3 , respectively. The research results complement the biochemical characteristics of Narma and Rkatsiteli grape varieties, which can be successfully used as raw materials in the food industry to enrich food with biologically active, mineral and aroma-forming substances.