ASSESSMENT OF NEW TOMATOES HYBRIDS IN A COVERED CROP

Abstract

In the conditions of covered crop in Dagestan tomato ranks the first in terms of cultivation area and in the country it is the second place after cucumber. However, tomato production has not yet reached the level necessary to meet people’s need. Growing it allows solving the problem of import substitution, ensures a constant supply of fresh vegetable products and solves the problem of a balanced, complete nutrition human nutrition throughout the year. When studying vegetable crops in covered crop conditions were revealed both general provisions characteristic of any region and specific features depending on the complex of local natural conditions. The level of radiation, temperature, humidity, wind and snow loads leave a certain influence on the growing tomatoes technology, which makes the problem of developing scientifically grounded elements of technologies for their production, ensuring high yields of vegetable plants and environmentally safe out-of-season products. With a wide variety of soil and climatic conditions in Dagestan, territories with extreme natural contrasts, even within a single agroclimatic region, the features of light and other microclimate regimes require clarification of the most important elements of agricultural technology. One of the main components of tomato growing technology is timely protection against diseases and pests. In the absence of a system of protective measures yield losses can reach 50% or more. In this context, the assessment of new F1 hybrids in film greenhouses in the winter-autumn circulation was carried out, the most promising of them for the conditions of Dagestan were identified, and the main elements of their cultivation were developed. The article presents the results of the dynamics of the yield of the crop by months. The influence of sowing and planting dates on the tomatoes yield is shown, the optimal scheme of sowing and planting tomatoes is determined. A phenological calendar for plant protection was compiled. The prospects of growing the studied hybrids in this region have been substantiated. Обоснована перспективность выращивания изучаемых гибридов в данном регионе.