Features of seeds production of sunflower inbred lines using group net isolators

Influence of net isolator canopy on illumination and temperature inside the isolator is studied. Net canopy reduces on 24-42 %, depending on a measuring height, intensity of sun light influence on sunflower plants and decreases air temperature inside the isolator on 3-10 °C. In this connection, the different cultivation methods (terms and methods of sowing, various nutritious area, and plant populations) of sunflower inbred lines in group net isolators were studied. There are showed the most effective of them. Calculation of economic efficiency of group net isolator usage at production of breeder seeds of sunflower inbred line VK-678 is presented. Profitability of isolator usage in primary seed growing exceeds 64%.