THE INFLUENCE OF GROWTH REGULATORS ON SUNFLOWER PRODUCTIVITY IN THE FOREST-STEPPE ZONE OF THE REPUBLIC OF INGUSHETIA.

The results of two-year observations of the growth and development of four sunflower varieties: Master, Flagman, Lakomka, Rodnik against the background of the use of three plant growth regulators: Zircon, Epin and Regoplant on the soil in the forest-steppe zone of the Republic of Ingushetia are presented. Studies have shown that the effect of growth regulators begins to manifest itself even during the period of seed germination. The length of seedlings and roots was most influenced by Zircon, less by Regoplant and Epin. Sunflower seeds treated with these growth regulators had roots 2.0-2.5 cm longer than the roots of untreated seeds (control), and the length of seedlings exceeded the control by 2.7-3.5 cm, while the Flagman variety had a small length of seedlings and roots. advantage. During the study period, the Flagman cultivar was distinguished by the highest yield, the Lakomka cultivar was somewhat less productive, and the Rodnik and Master cultivars were the least productive. On average, over two years of research, the varieties Flagman and Lakomka against the background of the use of Regoplant provided 2.5 t / ha of oilseeds, which is significantly more than other options.