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Agronomic study of two annual helianthus species naturalized in Argentina as potential sunflower crop genetic resource
(Universitat de Lleida, España, 2008)The genus Helianthus (Asteraceae), native from North America comprises not only the cultivated sunflower H. annuus var. macrocarpus L., but also some invasive species. The wild H. annuus ssp. annuus (common sunflower) and ... -
Can achene selection in sunflower crop–wild hybrids by pre-dispersal seed predators hasten the return to phenotypically wild sunflowers
(2016-04)Bird attack is a serious limitation to sunflower yield in several regions of the world, but it could also cause selection. The wild Helianthus annuus, naturalized in several regions of the world, hybridizes with the crop ... -
Exoferality in sunflower (Helianthus annuus L.): a case study of intraspecific/interbiotype interference promoted by human activity
(2013)Helianthus annuus subsp. annuus, a biotype of the same species of the domesticated sunflower H. annuus var. macrocarpus, is an emergent noxious weed in several regions of the world. The frequent hybridization that occurs ...