Relevance. In connection with the development of industrial hydroponics in the country, the need arose to create targeted varieties and hybrids of F1 small radish for salad lines, which have special requirements. They should be productive, early ripening and shade-tolerant, with a rounded root shape and a small compact rosette of leaves, resistant to premature stem formation (stem formation). Root vegetables should be juicy, dense, without voids and bitterness, as well as with a high content of ascorbic acid and other biologically active substances and low accumulation of pollutants.Methodology. The material for the study was selection samples of small radishes created in the laboratory of selection and seed production of table root crops of the Federal State Budgetary Institution " Federal Scientific Vegetable Center". The assessment of promising breeding material was carried out in the seedling department of the Richel greenhouse and in the production conditions of Moskovsky LLC according to the methods adopted by the Federal Scientific Center.Results. Based on the assessment results, promising leveled material was identified, adapted to the conditions of salad lines, both in terms of a set of characteristics and in individual areas of selection: No. 81 with high yield and marketability, having large red root crops of a round-oval shape and a small leaf rosette, No. 83 – with large roots, small leaf rosette and resistance to flowering, No. 80 is a genetic source of high resistance to flowering (3.6%) combined with marketability and a small leaf rosette. Genetic sources of high dry matter content were identified – the Dutch hybrid F1 Gloritet, monosaccharides – sample No. 83, ascorbic acid – No. 76, 81, 82, 84, high content of vitamin "C" and monosaccharides in root vegetables – No. 76. In the production conditions of Moskovsky LLC, three promising samples small radishes stood out with a yield of more than 2200 g per 1 m2 and a marketability of 93.9-96.8%, distinguished by large rounded red root crops, a small rosette of leaves and a thin axial root.

Relevance. The use of mineral fertilizers in the cultivation of tomato in the first place should ensure the best conditions for the nutrition of plants during the entire growing season in accordance with their need.The research methodology was based on generally accepted methods for vegetable growing. The main goal of this study was to improve the zonal technology for cultivating tomato in open ground using leaf dressing with KCL and KNO3 preparations, aimed at increasing the level of yield during irrigation in the north of the Astrakhan region. Field experiments were carried out at the experimental irrigated land use area of the Federal State Budgetary Scientific Institution "Caspian Agrarian Federal Scientific Center of the Russian Academy of Sciences" in the period from 2021 to 2023. The scientific novelty of the study was the theoretical and practical justification for the use of leaf dressing with KCL and KNO3 in the cultivation of vegetables, aimed at the formation of highly productive commercial products.Results. During the research work, a comparative analysis of various standards of use of drugs was carried out, highlighting the most promising option. Three-year studies found that the use of potassium fertilizer KCl with a concentration of 0.5%), 30... 40 days. after planting (flowering), 50 days. after planting and 60 days. after planting gave a significant increase in yield relative to the control option. Conclusions. Based on the results of the analysis, an average of five charges, the KCl treatment variant Background + 3 (concentration 0.5%) was identified, which had the highest yield of 130.56 t/ha. This option was significantly different from both control and other options under study. The increase relative to the control was + 4.08 t/ha or + 3.2%.

The regular inclusion of green vegetables in the diet is beneficial to human. In Russia the main time manufacture and consumption of fresh vegetable production falls in the June-October. Seasonality of consumption of vegetables may lower the conveyor production using secure ground, as well as the introduction of a larger number of species in the production of vegetable crops. One of the priority directions of the development of greenhouse vegetable production is the introduction of hydroponic technologies, including longline. In Federal Scientific Vegetable Center has passed the test of cultivars of lettuce, rocket salad, mustard leaf and watercress breeding laboratory of green and spicy taste cultures on multi-level narrow column hydroponics (MUG). It is shown that when grown on the installation of MUG, it is possible to obtain ecologically safe and valuable spicyflavoring and salad green products. The studied varieties are looking not only for growing hydroponic salad lines, but for multi-level narrow column hydroponics (vertical vegetable growing) during the off-season. The studied varieties are promising not only for growing on hydroponic salad lines, but for multi-level narrow column hydroponics (vertical vegetable growing) during the off-season.

Several early ripening pumpkin varieties adn hybrids with high yield and resistance to cold and diseases and high organoleptic properties were developed in Federal Scientific Vegetable Cencer. They are early, cold-resistant, yielding and resistant to a diseases and they have high taste and technological qualities of fruits. Most varieties of pumpkin need to fruit ripening to improve their taste. Lateripening varieties with long-term storage of fruits, until the end of November – early December, accumulate up to 10% of the amount of sugars. The timing of pumpering and storage of pumpkin fruits without loss of quality and taste indicators are individual for each variety and can vary greatly between each other. Gourds of a pumpkin of a dining room are shown as practically not requiring, and requiring in fruit ripening – from two weeks to two months. To a large extent, all varieties differ in terms of the shelf life of the fruit. Using these characteristics of varieties, even in the conditions of the Moscow region, you can create a continuous conveyor of consumption of pumpkin fruits. Recommendations are given on the timing of dosage and use of fruits of different varieties of pumpkin selection Federal Scientific Vegetable Center.

The historical reference of Asparagus officinalis (Asparagus officinalis L.), its species composition and practical use is given. Biological and agrotechnical features of culture, the most common diseases and pests are presented. Grades and methods of selection work. Sexual type of asparagus, perennial varieties and the ability of plants to vegetative propagation are important factors in asparagus breeding. The following methods are used in asparagus selection: hybridization; formation of male varieties via self-pollination of bisexual flowers found on male plants; utilization of the heterosis effect the formation of homozygous inbred-lines; production of tetraploid forms by exposure of colchicine to asparagus seedlings. Selection can be done either on individual plants or using multiple approach. Improvement of selection may be achieved using several parameters: plant yield, the mass of seedlings; plant height of the most developed shoot; the number of shoots. This allows to discard undesirable forms at early stages. Laboratory of green vegetables, spicy-flavoring and flower crops of the Federal Scientific Vegetable Center possesses the collection nursery of 7 samples of Asparagus officinalis: K-25, K-28, K-41, K-46, Mary Washington Bruswick, Paradise. The latter are used for Asparagus selection with the aim to retain economically valuable traits.

In the he article are presented the research result on effectiveness of application new form of urea on potato. New urea form is urea with urease inhibitors. This fertilities type allow to reduce losses of nitrogen in ammonium form. Field experiment was carried out in 2017 on solonetc light chestnut soils with heavy granulometric compound in the conditions of the Volgograd region in the experimental polygon of the lower Volga agricultural research Institute – branch of Federal state budgetary scientific institution "Federal scientific center for agro-ecology, integrated land reclamation and protective afforestation wounds". As an object of research used potatoes mid-early table varieties Nevsky. The advantage of a new fertilizer form is the yield increase and improvement of tubers quality. Urea UTEC application leads to formation bigger and uniform tuber size. The use of urea UTEC provide the potato yield of 56.4 t/ha, with marketable tubers fraction up to 54.82 t/ha, the total yield increase to the control – 35.6%, in monetary terms this amounted to 245887.0 RUB/ha additional profit. Under these conditions, was obtained lowest amount of non-marketable yield – 0.16 t/ha, which is 2.65 times less than in the control variant. The advantage of urea UTEC application in comparison with ammonium nitrate was the increase in the yield of marketable potatoes by 5.1 t/ha and an additional profit up to 76.8 thousand rubles/ha. The Assessment of the potato quality showed that the best treatment was also the treatment with UTEC urea, the starch content in tubers was 9.22%. Note that almost the same value of the indicator in the variant with the use of urea (option 2), and the lowest starch content was noted when using ammonium nitrate – 9.05%.

Relevance. Growing European radishes in protected soil on hydroponics provides year-round fresh vitamin production. For the autumn-winter turnover shade-tolerant varieties with a short growing season are necessary. For the spring-summer turnover, the resistance of the variety to high temperatures and premature stem formation is of particular importance. Selection of targeted radish varieties is an energy-consuming process, which can be optimized by using an open-type multi-tier narrow-stack hydroponics installation with a different combination of limiting factors for tiers (light, heat).Methods and results. In Federal Scientific Vegetable Center radish varieties were tested in different conditions. The informativeness of the tiers on the installation as backgrounds for selection for adaptability and specificity is determined. It was found that the assessment and selection of productivity and large-fruited is effectively carried out on 1-2 tiers; for resistance to premature stem formation – on 1 tier; for shade tolerance, early ripening, with a stable manifestation of the marketable mass of the root crop – on 4-5 tiers. Radish varieties were selected as the starting material for the suitability for hydroponic cultivation of intensive type and highly adaptive. The uniqueness of the use of a multi-level narrow column hydroponics for the purpose of radish breeding is shown.

Material for research was fresh leaves of Amaranthus tricolor L. varieties Early Splendor. They were grown in a greenhouse (Federal Scientific Vegetable Center, Moscow region). Using GC-MS, 8 and 11 amino acids were identified in extracts of hetero- and autotrophic leaves. One of the mechanisms that provide resistance to stresses of various natures is the accumulation of free amino acids; therefore, the total content of antioxidants can serve as an indicator of plant resistance. The amino acids found in amaranth leaves have pronounced functional activity in the human body. For example, tyrosine is the most important neurotransmitter, stimulates the brain, is involved in the control of stress. In humans, the precursor of tyrosine is the essential amino acid phenylalanine, while tyrosine is formed by hydroxylation of the phenyl group of phenylalanine. In this case, the lack of the latter in food leads to a deficiency of tyrosine in the body. Tryptophan controls the body's protective and adaptive functions. Amino acids valine, leucine, glutamine, proline - stimulate the growth of beneficial intestinal flora and biomass accumulation. Thus, the amino acid composition determines the nutritional and pharmacological value of amaranth leaf biomass. This indicates that amaranth leaves are a promising raw material for creating functional products and herbal remedies.

Relevance. Onion is one of the most important vegetable crops of the borscht group, in the NonChernozem zone it is cultivated mainly through sowing, but modern technologies of cultivation of new varieties and hybrids of intensive type, drip irrigation, new types of mineral and organic fertilizers and plant growth regulators allow to obtain a high yield of onions (50 – 70 t/ha) in an annual crop in conditions of fertile alluvial soils and dramatically increase the profitability of production. Onions grown from seeds, as a rule, respond poorly to the use of large doses of mineral tuks due to the increased concentration of soil solution and a decrease in the density of standing plants.Material and methods. Research in 2014-2020 were carried out on the experimental field of the Department of Agriculture and Agrochemistry of VNIIO – a branch of the Federal State Budgetary Scientific Institution of the Federal Scientific Research Center on the alluvial meadow soil of the central part of the Moskvoretskaya floodplain (Ramenskiy district, MO). The experiments were carried out in 3 replicates, with a systematic distribution of replicates. As the main mineral fertilizer, nitroammophoska was used, containing 16% of ae. nitrogen, phosphorus and potassium. As organic fertilizers, we used biocompost of cattle, horse and chicken manure from TONEKS LLC, a domestic manufacturer of agrochemically and agronomically valuable bioorganic products of the BIUD family.Results. These studies made it possible to find out that biocompost from cattle manure, horse and chicken manure in balanced doses with mineral fertilizers for nitrogen, as well as growth regulators Zircon and Argolan, can significantly increase the yield of annual onions to 58.8-66.4 t/ha while increasing the standard of bulbs without reducing the biochemical quality indicators. The most effective were chicken manure (16% increase), Argolan (21% increase) and Zircon (10-21% increase in the yield of different hybrids).