Borysenko V. Performance sunflower hybrids of different terms depending on the density of sowing and row spacing on the Right steppes

The object of research - the formation and realization of the productive potential of sunflower plants, the processes of growth and development, the formation of crop productivity and quality of seeds. Purpose - to study the effect of planting density and row spacing on growth, development, yield and quality of the crop sunflower hybrids of different terms under steppes right bank. Methods - field, laboratory, statistical and comparative settlement. The dissertation contained - especially the growth, development, formation of productivity of crops Ukrainian sunflower hybrids F1 and Zagrava depending on the effects of different row spacing and plant density planting. Determined mutual way of sowing, planting density and weather conditions on yield and seed quality sunflower hybrids of different terms. The peculiarities of water consumption, economic efficiency and the biology investigated elements of cultivation technology. Implemented - Cherkassy region farms on the area of 65 hectares. Sector - agriculture.