The influence of the norm of seeding on seed efficiency of hybrid alfalfa in the conditions of Krasnoyarsk forest-steppe

The goal was to identify the influence of seeding rate on seed production of hybrid alfalfa. The objectives were to determine the possibility of controlling winter hardiness and safety of the plant for harvest by changing the seeding; to establish optimal structure of the plant stand, allowing them to realize biological potential of culture absolutely; to assess the agrophytocenoses of alfalfa hybrid quantity of seed; determining seed yield depending on seeding rate. The research methods were the experiments and observations carried out according to the methodology of the Institute of Forages and the methodology of the state variety testing in 2017-2019. The norms of seeding of hybrid alfalfa 5, 10 and 20 kg/hectare acted as the object of the research. The control was seeding rate recommended for the forest-steppe zone of Krasnoyarsk Region with ordinary sowing - 15 kg/hectare. According to the amount of precipitation of vegetative period, 2017 corresponded to the norm, 2018 was dry and 2019 exceeded the norm...