1. Seed yield, head characteristics and oil content in sunflower varieties as influenced by seeds from single and multiple headed plants under humid tropical conditions;Olowe;Annals of Applied Biology,2013
2. Changes in seed yield and oil fatty acid composition of high oleic sunflower (Helianthus annuus L.) hybrids in relation to the sowing date and water regime;Flagella;Agronomy Journal,2002
3. Organic and conventional production systems in Wisconsin integrated cropping systems trials I. Productivity 1990–2002;Posner;Agronomy Journal,2008
4. Nitrogen use efficiency, yield and other characteristics of sunflower (Helianthus annuus L.) hybrids as affected by different levels of nitrogen;Qahar;Biological Diversity and Conservation,2010
5. Investigation of yield and yield components of sunflower (Helianthus annuus L.) cultivars in the ecological conditions of Berlin (Germany);Canavar;Helia,2010