Back to matchesWe found a matchYour institution may have rights to this item. Sign in to continue.TitleMasthead.SubjectsPUBLISHING; SUNFLOWERS; SUNFLOWER seeds; CROP yields; SUNFLOWER varieties; AGRONOMY; AGRICULTUREPublicationHelia, 2012, Vol 35, Issue 56, piISSN1018-1806Publication typeArticleDOI10.1515/helia.2012.35.56.i