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Natural hybrids between cultivated and wild sunflowers (Helianthus spp.) in Argentina
(Springer, 2008-12)
Two introduced wild species Helianthus annuus L. and H. petiolaris Nutt. have become widespread in central Argentina and overlap the sunflower crop region. Intermediate off-type plants between the wild and cultivated species ...
Gene flow between cultivated and wild sunflower Helianthus annuus in Argentina
(Elsevier Science, 2008)
Chemical Characterization of Oils and Meals from Wild Sunflower (Helianthus petiolaris Nutt)
(Springer, 2004-12)
Chemical characterizations of oils and meals from the wild sunflower species Helianthus petiolaris Nutt and their comparison with those from cultivated sunflower (H. annuus) were performed. Seeds from indigenous populations ...
Inheritance of disc flower color in Helianthus petiolaris
(Institute of Field and Vegetable Crops, 2009)
Disc flowers of Helianthus petiolaris (Asteraceae) are usually purple reddue to anthocyanin pigments in corolla lobes, style and stigma. However, yellow-flowered plants are occasionally found. The inheritance of this trait ...
The role of domestication and maternal effects on seed traits of crop–wild sunflower hybrids (Helianthus annuus)
(Wiley, 2017-08-18)
Hybridization between crops and their wild relatives may promote the evolution of weeds. Seed germination and dormancy are the earliest life-history traits and are highly influenced by the maternal parent. However, the ...
Wild sunflower diversity in Argentina revealed by ISSR and SSR markers: An approach for conservation and breeding programmes
(Wiley Blackwell Publishing, Inc, 2011-05-29)
Wild sunflower Helianthus annuus originates from North America and has naturalised in Argentina where it is considered invasive. The present study attempts to assess the genetic diversity using two different molecular ...
Ecological characterization of wild Helianthus annuus and H. petiolaris germplasm in Argentina
(CropGen International, 2009-04)
Helianthus annuus and H. petiolaris (Asteraceae) are wild sunflowers native to North America but have become naturalized in central Argentina covering an area of about 5 million hectares. Wild H. annuus has been recognized ...
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 ...
Genetic variation for tolerance to extreme temperatures in wild and cultivated sunflower (Helianthus annuus) during early vegetative phases
(Csiro Publishing, 2020-06-04)
The increased incidence of extreme temperature events due to global climate change poses a major challenge for crop production. Ability to increase temperature tolerance through genetic improvement requires understanding ...
Maternal control of early life history traits affects overwinter survival and seedling phenotypes in sunflower (Helianthus annuus L.)
(Wiley Blackwell Publishing, Inc, 2021-03)
When cultivated and wild plants hybridize, hybrids often show intermediate phenotypic traits relative to their parents, which make them unfit in natural environments. However, maternal genetic effects may affect the outcome ...