SEED DORMANCY IN 4 SPECIES IN A CHILEAN SAND-DUNE - A LABORATORY STUDY

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dc.contributor.authorBALBOA, O
dc.date.accessioned2025-01-23T19:43:59Z
dc.date.available2025-01-23T19:43:59Z
dc.date.issued1983
dc.description.abstractSeeds of Neoporteria subgibbosa, Trichocereus litoralis, Plantago hispidula and Calandrinia arenaria were collected in 1979 from Mantagua dunes located 32.degree. 48''S and 72.degree. 30''W. The germination tests were carried out in the laboratory using continuous white, green, red, far red light (20 .mu.mol m-2 s-1) or darkness. N. subgibbosa and T. litoralis germinated under the 4 light regimes but darkness. White or red light gave the highest percent germination in both species. C. arenaria required scarification to start germination, which was low (35%); however, addition of GA3 (50 ppm) improved it reaching 75%. P. hispidula responded equally well to light and darkness. These seeds have the remarkable capacity to imbibe water up to 15-fold their fresh weight due mainly to the mucilaginous layer surrounding them. Thus, these species show different reproductive adaptations to cope with natural environmental conditions.
dc.fuente.origenWOS
dc.identifier.issn0243-7651
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99898
dc.identifier.wosidWOS:A1983RV59500004
dc.issue.numero4
dc.language.isoen
dc.pagina.final361
dc.pagina.inicio355
dc.revistaActa oecologica-oecologia plantarum
dc.rightsacceso restringido
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleSEED DORMANCY IN 4 SPECIES IN A CHILEAN SAND-DUNE - A LABORATORY STUDY
dc.typeartículo
dc.volumen4
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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