Seed Morpho-Anatomy, Dormancy and Germination Requirements in Three <i>Schizanthus</i> Species (Solanaceae) with Ornamental Potential

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dc.contributor.authorMoreno, Joaquin
dc.contributor.authorGomez, Miguel
dc.contributor.authorContreras, Samuel
dc.date.accessioned2025-01-20T16:09:05Z
dc.date.available2025-01-20T16:09:05Z
dc.date.issued2024
dc.description.abstractSchizanthus carlomunozii, S. hookeri, and S. porrigens are herbaceous species native to Chile and Argentina and have high ornamental potential. Their propagation through seeds is challenging due to low and uneven germination percentages. This study aimed to determine the morpho-anatomical characteristics, dormancy, and germination requirements of the seeds of these three species. The seeds from all three species have a flattened and reniform shape with a foveolate testa. However, the seeds of S. hookeri are distinguished by their larger size, more pronounced C-shape, seed coat with more marked prominences, and symmetrically arranged areoles. Histological analysis and imbibition tests with methylene blue revealed that the seeds have well-developed embryos and permeable seed coats, ruling out physical and morphological dormancy. Germination tests under various conditions showed that the seeds of the three species exhibit physiological dormancy. Imbibition in gibberellic acid (200 ppm) proved to be an effective treatment to promote germination. When evaluated in S. hookeri seeds, cold stratification and after-ripening also improved germination. The optimal temperatures for seed germination were calculated to be 26 degrees C for S. carlomunozii, 19 degrees C for S. hookeri, and 23 degrees C for S. porrigens.
dc.fuente.origenWOS
dc.identifier.doi10.3390/horticulturae10080867
dc.identifier.eissn2311-7524
dc.identifier.urihttps://doi.org/10.3390/horticulturae10080867
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90129
dc.identifier.wosidWOS:001307331400001
dc.issue.numero8
dc.language.isoen
dc.revistaHorticulturae
dc.rightsacceso restringido
dc.subjectphysiological dormancy
dc.subjectS. carlomunozii
dc.subjectS. hookeri
dc.subjectS. porrigens
dc.subjectoptimal temperature
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleSeed Morpho-Anatomy, Dormancy and Germination Requirements in Three <i>Schizanthus</i> Species (Solanaceae) with Ornamental Potential
dc.typeartículo
dc.volumen10
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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