In both maintainer and restorer lines of BSH-1 hybrid and Cv. Morden of Sunflower, significant increase in the values of oil per cent, 100-Seed weight, germination per cent of seeds, shoot length, root length and seedling vigour index were observed with decrease in plant density. Lower plant density (55,555 pi/ha) recorded highest values of seed quality compared to medium (83,333 pl/ha) and higher (1,66,666 pl/ha) plant densities