Responsiveness of hybrid sunflower forms on growing conditions

The results of testing hybrid sunflower forms: Altai ♀ x Poseidon 625♂ and Poseidon 625♀ x Altai♂, with their parent forms: Altai variety and Poseidon 625 variety. The research was conducted in the field on the basis of the farm "Nauka" and the agrochemical laboratory of NPO Altai LLC in 2017-2018. It was revealed that the formation of the maximum value of the characteristics of hybrids is influenced by the maternal form. Thus, the precocity of the hybrid Altai x Poseidon 625 was influenced by the maternal form, the Altai variety. And when forming signs, the mass of 1000 achenes and the oil content of the achenes in the hybrid Poseidon 625♀ x Altai♂ is the maternal form of Poseidon 625♀.