YIELD AND DROUGHT RESISTANCE OF SUNFLOWER HYBRIDS OF DIFFERENT MATURITY GROUPS IN STEPPE AGROECOSYSTEMS
In the field experiment of the Lugansk NAU, the productivity and drought tolerance indices of sunflower hybrids of different ripeness groups treated with Niva growth stimulant were studied. It was shown that the highest yield and water holding capacity of sunflower leaves are observed in the mid-ripening hybrid “Don” after leaf treatment with a growth stimulator, which indicates an increase in adaptive properties in arid conditions of steppe agrocenoses.