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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 ... -
Cold stress tolerance during early growth stages of naturalized Helianthus petiolaris populations
(2016-07)In the last 10 years the sunflower crop area of Argentina has shifted towards the Southwest as a result of the expansion of soybean cultivation. Early sowings require greater tolerance to low temperatures in order to ... -
Genomic relationships between hexaploid Helianthus resinosus and diploid Helianthus annuus (Asteraceae)
(Springer, 2014-05)Genus Helianthus comprises diploid and polyploid species. An autoallopolyploid origin has been proposed for hexaploid species but the genomic relationships remain unclear. Mitotic and meiotic studies in annual Helianthus ...