PARAMETERS OF FORMATION OF BUCKWHEAT PRODUCTIVITY BY DETERMINANT VARIETIES SELECTION OF THE INSTITUTE OF AGRICULTURE OF NORTHERN EAST OF NAAS OF UKRAINE

Purpose. The purpose of our research was to study the level manifestation productivity elements based on biometric parameters plant growth and development determinant varieties buckwheat selected by Institute Agriculture Northern East NAAS. Methods. conducted during 2019–2021. object three one indeterminant (control variant) Field laboratory methods involved determination plants their productivity. establishment experiments, parameters, analysis obtained results, mathematical statistical processing were carried out in accordance with generally accepted methods. Results. As a result study, superiority over established terms related leaf surface. Indeterminant form greater number flowers inflorescences branches first order, however, peculiarities structure (increased assimilation area, placement plant, etc.) led an increase percentage realization into grains 13 %. latter made it possible obtain equal full-fledged comparison control variant, due formation larger seeds varieties, exceed individual variant 17 Conclusions. features habit identified, which consist lowgrowing bushes well-developed increased supply 40 % compared ones. It that generative organs location is significantly different from usual morphotype. Despite certain advantage variety, size allowed same through implementation fruits. Thus, mass grain exceeded variety 8–25 basic factor influencing fruits per (r=0.97) weight 1000 (r=0.91).