Effect of dry heat on seed germination of Desmodium and Stylosanthes species

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cg.contributor.affiliationBioversity International and the International Center for Tropical Agricultureen
cg.creator.identifierLuis Guillermo Santos Meléndez: 0000-0001-7093-1271
cg.creator.identifierPeter Wenzl: 0000-0003-4657-8468
cg.identifier.doihttps://doi.org/10.15258/sst.2020.48.3.11en
cg.isijournalISI Journalen
cg.issn0251-0952en
cg.issue3en
cg.journalSeed Science and Technologyen
cg.reviewStatusPeer Reviewen
cg.subject.alliancebiovciatGERMPLASM CONSERVATIONen
cg.subject.ciatGENETIC RESOURCESen
cg.volume48en
dc.contributor.authorSalazar, Daniel E.en
dc.contributor.authorSantos, Luís Guillermoen
dc.contributor.authorWenzl, Peteren
dc.contributor.authorHay, Fiona R.en
dc.date.accessioned2020-12-04T21:10:33Zen
dc.date.available2020-12-04T21:10:33Zen
dc.identifier.urihttps://hdl.handle.net/10568/110411
dc.titleEffect of dry heat on seed germination of Desmodium and Stylosanthes speciesen
dcterms.abstractMechanical scarification with a scalpel is the best treatment to break physical dormancy and reach high germination percentages in many legumes. However, it is highly time-consuming. Given the ecological relation­ship between the presence of physical dormancy and high temperatures in tropical grasslands, dry heat treatment could also promote breaking of physical dormancy in Desmodium and Stylosanthes species. This study assessed seed germination of several accessions of nine species of Desmodium and Stylosanthes. Seeds were treated with dry heat (80°C for 30 minutes) and scarified with a scalpel to determine whether dry heat is a reliable alternative treatment to overcome physical dormancy. Mechanical scarification with a scalpel was effective and resulted in high germination for all species. In S. guianensis, both treatments had an equivalent effect, making dry heat a feasible alternative. Dry heat could also be a reliable alternative in D. heterocarpon, D. velutinum, S. hamata, and S. scabra, but tetrazolium tests may be necessary to confirm viability. For D. barbatum and D. scorpiurus, dry heat could be an alternative but further research is needed to confirm this, while in S. capitata and S. viscosa dry heat is not a reliable alternative.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationSalazar, D.E.; Santos, L.G.; Wenzl, P.; Hay, F.R. 2020. Effect of dry heat on seed germination of Desmodium and Stylosanthes species. Seed Science and Technology 48(3):419-437en
dcterms.extent419-437en
dcterms.issued2020-12-31
dcterms.languageen
dcterms.licenseCC-BY-NC-4.0
dcterms.publisherInternational Seed Testing Associationen
dcterms.subjectdesmodiumen
dcterms.subjectstylosanthesen
dcterms.subjecttratamiento de semillasen
dcterms.subjectseed treatmenten
dcterms.subjectbanco de genesen
dcterms.subjectgene banken
dcterms.subjectdormicionen
dcterms.subjectdormancyen
dcterms.subjectgerminacion de las semillasen
dcterms.subjectseed germinationen
dcterms.subjectviabilidaden
dcterms.subjectviabilityen
dcterms.typeJournal Article

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