AbstractTreatment of normal varieties of sunflowerseed with chemical mutagens and development of their progenies have resulted in hydrids bearing oil with oleic acid contents in excess of 80% and linoleic acid contents less than 10%. Fatty acids compositions are unaffected by climatic conditions. Analyses of the seed, oil and meal produced from the first commercial U.S. production show values not to differ significantly from normal high linoleic sunflower, except where anticipated on the basis of fatty acid composition.