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dc.contributor.authorMajak, W.
dc.contributor.authorMcDiarmid, R. E.
dc.contributor.authorHall, J. W.
dc.contributor.authorWillms, W.
dc.date.accessioned2020-09-18T14:53:56Z
dc.date.available2020-09-18T14:53:56Z
dc.date.issued2000-03-01
dc.identifier.citationMajak, W., McDiarmid, R. E., Hall, J. W., & Willms, W. (2000). Alkaloid levels of a tall larkspur species in southwestern Alberta. Journal of Range Management, 53(2), 207-210.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4003284
dc.identifier.doi10.2458/azu_jrm_v53i2_majak
dc.identifier.urihttp://hdl.handle.net/10150/643749
dc.description.abstractTall larkspurs (Delphinium spp.) are widely distributed in western North America and they kill more cattle on rangelands than any other poisonous plant. In Alberta, Canada, D. brownii Rydb. has a long history of causing cattle poisoning. The neurotoxic norditerpenoid alkaloid methyllycaconitine (MLA) was first detected in D. brownii over 50 years ago. A 2-year (1996 to 1997) survey was conducted on the levels of MLA in D. brownii collected at 5 sites in the foothills of southwestern Alberta. The vegetative stage of growth yielded the highest levels of MLA and the decline and change in concentration during that interval could be predicted on the basis of Julian day alone. The MLA levels during bud to pod development were not significantly different but they exceeded the reported levels for MLA in low larkspur by 5-to 10-fold. A new method is described for the determination of MLA by HPLC.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectDelphinium glaucum
dc.subjecthigh performance liquid chromatography
dc.subjectdevelopmental stages
dc.subjectAlberta
dc.subjectDelphinium
dc.subjectditerpenoid alkaloids
dc.subjectmethyllycaconitine
dc.titleAlkaloid levels of a tall larkspur species in southwestern Alberta
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume53
dc.source.issue2
dc.source.beginpage207-210
refterms.dateFOA2020-09-18T14:53:56Z


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