The terms of seeding on rosette plants have been found. Affect of the elastic adhesive emulsion on the seeds loosing has been revealed.

Carrot is one of the main vegetable crops due to its high yield and long-term preservation during winter storage. In the Amur Region, the vegetable crop zoning is underdeveloped. As a result, the assortment of recognized varieties and hybrids of carrot has long been outdated and is not replenished with new items. As part of the research work of the Federal State Budgetary Educational Institution of Higher Education "BGPU" at its agrobiological station, the specialists perform testing and assessment of various vegetable crops, including carrot. The purpose of the study is to identify high-yielding varieties of garden carrots suitable for cultivating in the agricultural and climatic conditions of the south of the Amur Region. The field trial was performed in accordance with the methods developed by B.A. Dospekhov (1985) and the state variety testing of agricultural crops described in "Vegetable and Cucurbit Crops, Potato, and Fodder Root Crops" (1956). The researchers applied agricultural technology that is commonly used in the region. Fifteen carrot samples of foreign selection were the object of the study. The hybrid F1 Abaco that had been grown at the agrobiological station for a long time was set as a standard. The vegetative period of the studied varieties under the regional conditions is 92-110 days. Nanco F1 and Sylvano F1 showed high yields, producing 41.0 and 47.0 tons of marketable roots per ha, with an average root weight of 110.1 and 120.9 g, respectively. The marketability of harvested root crops was 89.0% for Nanco F1 and 94.0% for Sylvano F1. We recommend vegetable growers in the region to establish a cultivation conveyor for garden carrots using the mid-early Presto F1 hybrid for sale in an early bunch and high-yielding F1 hybrids Nanco and Sylvano for fall use.

Relevance. Root chicory is a valuable economic crop. However, its attractiveness for the producer is reduced due to the high labor intensity of cultivation and a high proportion of manual labor, primarily when harvesting root crops. Modern agricultural production is in urgent need of new varieties of root chicory that combine high yields and the necessary chemical and technological qualities, having the form of a root crop suitable for mechanized harvesting and adapted to cultivation in the soil and climatic conditions of the non-Chernozem zone of Russia. The purpose of this work is to test varieties of root chicory in a collection nursery in the Yaroslavl region.Material and methods. The research was conducted at the the Yaroslavl region. The material for research was three varieties of Dutch selection Wixor RS, Rexor RS, Luxor. The experience is based on the "Guidelines for the study and maintenance of the world's collection of root crops", recommended by VIR. Vavilov.Results. Investigated varieties in the soil and climatic conditions of the non-black earth zone of Russia were distinguished by a short root crop (up to 25 cm long) with a large diameter (up to 9 cm). We recommend them as donors in the selection of root chicory for suitability for mechanized harvesting. From long-term observations, it follows that the varieties Wixor RS, Rexor RS and Luxor are early-maturing. The length of their vegetative period does not exceed 125 days. This group of varieties is the most valuable when breeding for early maturity. Based on the analysis of the results of economic-biological and environmental studies of Dutch varieties of root chicory, it was found that they have high average values of certain economic-valuable characteristics and stability of their manifestation over the years.

The advantages of varieties of vegetable pea of VNIISSOK breeding have been shown. These varieties are suitable for canning, freezing, gardening, and for universal use.

Relevance. In the vegetable market, cucumber is in stable demand. It also occupies one of the leading places in the structure of sown areas after root crops, cabbage, and tomato. In addition to high yields, modern varieties (hybrids) of cucumber, are characterized by good marketability of green cukes and transportability. The stable demand for green cukes among the population, as well as their high economically valuable characteristics, ensure constant interest in this crop both at large and small farms, which supply a significant part of the market with the fresh produce in spring and summer. Local peasant farms grow cabbages, root vegetables, onions, and watermelons, but very few of those cultivate cucumbers. Those are mainly grown in spring greenhouses. This imbalance is explained by the lack of cucumber varieties and hybrids adapted to local conditions.The purpose of this study is the assessment of a collection of parthenocarpic F1 cucumber hybrids and identification of highly productive varieties suitable for growing in polycarbonate greenhouses suitable in the spring-summer rotation in the south of the Amur Region. The object of the study were 11 F1 cucumber hybrids of domestic and foreign selection.Results. According to the results of studying the collection of parthenocarpic hybrids of cucumber grown in spring/summer polycarbonate greenhouses in the south of the Amur Region, marketable green cukes are formed on day 44-54 after germination. The hybrids Amur F1, Artist F1, Director F1, Componist RZ F1, Bjorn F1, Gunnar F1, and Cedric F1 are characterized by high productive facility. They have formed 9.0–13.0 kg/m2 of marketable green cukes. According to the test panel score, the hybrids Bettina F1, Pasalimo F1, and Gunnar F1, have the best gustatory quality (4,8-5,0 points).

Relevance. Increasing the resistance of vegetable plants to unfavorable growing conditions with the use of growth regulators that actively affect the seed quality, increase the survival rate of seedlings, stimulate the setting, formation and maturation of the crop is a significant reserve for increasing productivity with the already achieved level of intensification of their production.Material and methods. The effect of verbascosides obtained by exhaustive extraction with 60% aqueous ethyl alcohol from the aboveground part of Verbascum densiflorum Bertol. (Scrophulariaceae) was studied on the germination, growth, development and yield of tomatoes, cucumbers, onions and white cabbage. Before sowing, the seeds were soaked in an aqueous solution of verbascosides for 15-20 minutes, followed by drying to flowability at the rate of 0.5-0.8 liters of solution per 1 kg of seeds.Results. It is shown, that possessing phytoregulatory activity and influencing the metabolic and synthetic reactions of plants, these compounds, applied exogenously, stimulate the seed germination energy and total germination of vegetable crops, provide simultaneous appearance of seedlings and optimal plant density, accelerate the growth dynamics of plants assimilation surface and fruit mass. Reducing the consequences of stresses arising in the process of plant growth and development, they thereby contribute to increasing plant resistance, productivity and improving the commercial quality of the products. The ability of these compounds to improve the production process of vegetable crops, depending on the type and variety of vegetables was established. Their highest stimulating effect was determined on cabbage variants, where the yield exceeded the control by 34.3%. The performed studies and obtained results allow to recommend the pre-sowing seed treatment with a 0.01% solution of biological active substances from Verbascum densiflorum Bertol. as an element in technology of growing vegetable.

The article presents the results of long-term studies of evaluating of different types of pumpkins at their cultivation in the conditions of the Moscow region. The difference among the types of pumpkins based on the yield of fruits, seeds, as well as the number and weight of fruit per plant was found. Varieties and hybrids with high yield of fruits and seeds were selected.