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dc.contributor.authorAbbott, L. B.
dc.contributor.authorRoundy, B. A.
dc.date.accessioned2020-09-18T05:06:30Z
dc.date.available2020-09-18T05:06:30Z
dc.date.issued2003-01-01
dc.identifier.citationAbbott, L. B., & Roundy, B. A. (2003). Available water influences field germination and recruitment of seeded grasses. Journal of Range Management, 56(1), 56-64.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4003882
dc.identifier.doi10.2458/azu_jrm_v56i1_abbott
dc.identifier.urihttp://hdl.handle.net/10150/643717
dc.description.abstractPeriodic summer rainstorms in some semi-arid regions result in variable soil moisture and differential establishment of seeded species. A 2-year study investigated soil water effects on germination and survival of 6 native and 2 non-native southwestern U.S. grass species. Bags of seeds were buried and retrieved before and during the summer rainy season. High field germination in seed bags (20-100%) and limited germination in the laboratory of seeds that were ungerminated in seedbags (0-45%) were exhibited by 6 native grasses following initial rainfall events in which the surface soil was saturated for 2 days or water potential (1-3 cm depth) was above -1.5 MPa for more than 9 days. Fewer Lehmann lovegrass (Eragrostis lehmanniana Nees) seeds germinated in response to initial and subsequent rainfall events (0-49%), but this species retained more residual germinable seeds (49-99%) than all other species studied. For 2 sowing dates, the soil drying front exceeded estimated seminal root depth 13 days after germination. Lack of recruitment for some species sown on these dates was probably due to seedling desiccation before adventitious roots had sufficient time to develop. The ability of Lehmann lovegrass to retain a viable seedbank when rainstorms are separated by long dry periods allows it to establish better than some native grasses that germinate quickly and are then subject to seedling desiccation. During a summer with more consistent rainfall, native species recruitment was greatest when seeds were planted during, rather than before the summer rainy season.
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.subjectMuhlenbergia porteri
dc.subjectBothriochloa barbinodis
dc.subjectdrying front
dc.subjectchoice of species
dc.subjectLeptochloa dubia
dc.subjectEragrostis intermedia
dc.subjectLeptochloa
dc.subjectrevegetation plants
dc.subjectDigitaria californica
dc.subjectadventitious roots
dc.subjectrecruitment
dc.subjectBouteloua curtipendula
dc.subjectEragrostis
dc.subjectsemiarid grasslands
dc.subjectseedling emergence
dc.subjectdrought tolerance
dc.subjectrain
dc.subjectspecies differences
dc.subjectsoil water content
dc.subjectsummer
dc.subjectseed germination
dc.subjectEragrostis lehmanniana
dc.subjectArizona
dc.subjectwarm season
dc.subjectdesert grasslands
dc.subjectrangeland revegetation
dc.subjectdrought tolerance
dc.subjectBouteloua curtipendula
dc.subjectBothriochloa barbinodis
dc.subjectLeptochloa dubia
dc.subjectDigitaria californica
dc.subjectMuhlenbergia porteri
dc.subjectEragrostis lehmanniana
dc.subjectEragrostis intermedia
dc.subjectEragrostis lehanniana X tricophera
dc.titleAvailable water influences field germination and recruitment of seeded grasses
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.volume56
dc.source.issue1
dc.source.beginpage56-64
refterms.dateFOA2020-09-18T05:06:30Z


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