Sunflower yields death from the application of growth regulators in the conditions of the Forest-steppe of the West

V. Sendetskyi

Анотація


The results of studies carried out during 2013-2016 are presented. On studying the influence of growth regulators «Vermimag» and «Vermioiodis» for presowing seed treatment and one-two-time spraying of sunflower plants of the hybrids of HP Brio on their growth and development, and the yield of sunflower seeds under the conditions of the Forest-steppe of the West.

It is established that plant growth regulators «Vermimag» and «Vermioiodis» activated the basic processes of vital activity of sunflower plants. In the cases of presowing seed treatment and one-time spraying during the vegetative period of sunflower plants, the growth regulators of Vermimag and Vermioidis increased the crop yield by 10.6%, and after preplanting treatment of seed of a double spraying by 14.2-16.4% Control.

In the variant with presowing treatment of seeds with Vermioiodis (4 liters / tonne) and double spraying of sunflower plants of hybrid HP Brio, the Vermioiodis growth regulator at a dose of 4 liters / ha yielded the highest yield - 3.70 tons / ha, or 0, 52 T / ha more than on the control.

The use of growth regulators «Vermimag» and «Vermioidis" allows to fully realize the genetic potential of plants, regulate the maturation period, increase the yield of sunflower and improve the quality of products. Their use is an important component of the system of agrotechnical measures for the care of crops. The use of biopreparations does not require additional costs, except, of course, its own cost, so their use contributes not only to an increase in gross production, but also to a reduction in its cost, which is especially important in market conditions.

Ключові слова


plant growth regulators, «Vermimage», «Vermioiodis», growth and development, yield, quality

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