UDC 632.51
The objective of the study is to evaluate the use of physiologically active substances - VIVA, NAGRO to improve the productivity and quality of seed grape varieties in the conditions of the unstable moisture zone of the Shelkovsky district of the Chechen Republic. The research results convincingly proved the effectiveness of the use of biopreparations VIVA and NAGRO, their positive effect on the growth and development of seed grape varieties. Fertilizer NAGRO affected the chemical composition – the sugar content of berries increased. The studied drug had a positive effect on increasing the size of berries and their weight. All options in which top dressing was used exceeded the control option in bunch weight, the number of berries in a bunch and the weight of 50 berries. The doses of the studied fertilizer were determined that provide an increase that increases the yield and quality of grapes while reducing the cost of production. It is advisable to use the obtained results to improve the technology of grape cultivation. The research results convincingly proved the effectiveness of the use of growth regulators VIVA and NAGRO, their positive effect on the growth and development of seed grape varieties. A significant difference in the growth intensity in the initial period of shoot growth was noted, which is an indicator of the absorption of preparations by plants after treatment. All doses of the new generation growth regulators had a positive effect on the yield, quality and transportability of grapes. According to the berry crushing strength indicator, the berries were characterized by a very strong attachment to the stalk. The strength of the berries to tear off the stalk increased after applying different doses of NAGRO. The bunches had a smart appearance, there was no pea-like shape of the berries. Based on the above, the expediency of using VIVA and NAGRO growth regulators in the zone of unstable moisture is beyond doubt.
growth regulators, seed grape varieties, cultivation technology, yield, sugar content, berry strength, transportability
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