Autofertility under open pollination of sunflower lines as additional criterion for an estimation of breeding material

It is studied 13 constant self-pollinated lines on selectivity of fertilization and autofertility. Essential distinctions between lines according to parameters are noted. The variation on selectivity of fertilization by own pollen was from 19.2 % at line VK-462 up to 87.5 % at line VK-734. The most valuable to selection are the forms combining raised selectivity of fertilization with autofertility. Lines VK-174, VK-810, VK-789, VK-585, VK-551 and VK-653 concern to them. The parameter selectivity of fertilisation 155 in addition to a parameter of auto fertility allows identifying more precisely the self-pollinated lines of sunflower on their selection value and should find application in practice of breeding.