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dc.contributor.authorLimbach, W. E.
dc.contributor.authorCall, C. A.
dc.date.accessioned2020-09-23T17:49:34Z
dc.date.available2020-09-23T17:49:34Z
dc.date.issued1996-07-01
dc.identifier.citationLimbach, W. E., & Call, C. A. (1996). Germination response of Russian wildrye to variations in seed mass at fluctuating temperatures. Journal of Range Management, 49(4), 346-349.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4002595
dc.identifier.urihttp://hdl.handle.net/10150/644260
dc.description.abstractThe effects of seed mass and fluctuating temperatures on the germination and heterotrophic seedling development of 3 seed sources of Russian wildrye, Psathyrostachys juncea (Fisch) Nevski, were studied. Seeds that weighed 2.4, 3.0, 3.6, and 4.2 +/- 0.1 mg of each seed source were germinated in an unlighted incubation chamber at 5-10 degrees C, 5-15 degrees C, 10-l5 degrees C, and 10-20 degrees C. Germination and heterotrophic seedlings development were assessed using: 1) mean time to germinate (T/1), 2) the mean proportion of seeds to germinate (G) and 3) mean maximum radicle and coleoptile extension. Data were analyzed using a 4 X 4 X 3 factorial analysis of variance (n = 144) comprised of main effects, temperature (T), seed mass (M), and seed source (S). Time to germination was significantly affected by T (F = 647.44, P < 0.0001), S (F = 28.29, P < 0.0001) and the T X S (F = 4.71, P < 0.0003) and S X M (F = 2.21, P < 0.0489) interact. The mean maximum proportion of seeds to germinate was significantly affected by T (F = 13.63, P < 0.0001), S (F = 10.53, P < 0.0001), M (F = 8.11, P < 0.0001) and the T X M interaction (F = 2.21, P < 0.0276). Radicle extension was significantly affected by T (F = 21.94, P < 0.0001), S (F = 14.29, P < 0.0001), M (F = 12.70, P < 0.0001), and the T X S (F = 13.69, P < 0.0001) interaction. Coleoptile extension was significantly affected by T (F = 810.24, P < 0.0001), S (F = 68.83, P < 0.0001), M (F = 56.00, P < 0.0001), and the T X M (F = 3.84, P < 0.0003) interaction. Apparently, Syn-A seeds germinate more vigorously and have longer coleoptiles than Vinall but apparent differences remain confounded between seed sources since the effects of seed age and maternal environment cannot be eliminated from the study.
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.subjectradicles
dc.subjectprovenance
dc.subjectseed size
dc.subjectcoleoptiles
dc.subjectPsathyrostachys juncea
dc.subjectseedling growth
dc.subjectseed germination
dc.subjecttemperature
dc.titleGermination response of Russian wildrye to variations in seed mass at fluctuating temperatures
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.volume49
dc.source.issue4
dc.source.beginpage346-349
refterms.dateFOA2020-09-23T17:49:35Z


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