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dc.contributor.authorSharifiamina, Shirinen
dc.contributor.authorMoot, Derrick J.en
dc.contributor.authorBloomberg, Marken
dc.date.accessioned2020-05-20T02:52:04Z
dc.date.issued2016en
dc.identifier.issn2463-2872en
dc.identifier.urihttps://hdl.handle.net/10182/11904
dc.description.abstractThe objective of this study was to quantify the combined effects of temperature and moisture on germination of tall fescue seed. Seeds were incubated for up to 50 days at a range of constant temperatures (5-35ºC) and germinated at five water potentials (0, -0.18, -0.37,-0.63 and -0.95 MPa). The maximum final germination percentages were 94 to 98 at 15-30ºC when water was not limited (0 MPa). Germination rate increased linearly from 5 to 27.5ºC, and then decreased linearly from 27.5 to 32.5ºC. Extrapolation of the sub-optimal temperatures identified a base temperature of 3.5 ± 0.5ºC and an optimum temperature of 27.5ºC. More negative water potential indicative of drier conditions, delayed germination and reduced germination rate. The average base water potential was -0.95 MPa at the sub optimal range of temperatures. An optimum range of germination (80-100%) occurred when temperatures were between 10 and 30ºC and water potential was between 0 to -0.37 MPa (moderate stress). These results provide a matrix of soil temperature and moisture conditions that are expected to result in successful germination and therefore provide the maximum opportunity for emergence of tall fescue seedlings.en
dc.format.extent163-168en
dc.language.isoenen
dc.publisherNZGAen
dc.relationThe original publication is available from - NZGA - https://www.grassland.org.nz/viewpublication.php?pubID=399en
dc.rights© The authors and NZGAen
dc.subjectFestuca arundinaceaen
dc.subject'Finesse Q"en
dc.subjecthydrothermal timeen
dc.titleCalculating “Hydrothermal time” to quantify seed germination of tall fescueen
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Agricultural Sciencesen
lu.contributor.unitFaculty of Agribusiness and Commerceen
lu.contributor.unitDepartment of Land Management and Systemsen
lu.contributor.uniten
lu.contributor.uniten
dc.subject.anzsrc0701 Agriculture, Land and Farm Managementen
dc.subject.anzsrc0703 Crop and Pasture Productionen
dc.relation.isPartOfJournal of New Zealand Grasslandsen
pubs.organisational-group/LU
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/AGSC
pubs.organisational-group/LU/Faculty of Agribusiness and Commerce
pubs.organisational-group/LU/Faculty of Agribusiness and Commerce/LAMS
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/2018 PBRF Staff group
pubs.publication-statusPublisheden
pubs.publisher-urlhttps://www.grassland.org.nz/viewpublication.php?pubID=399en
pubs.volume78en
dc.identifier.eissn2463-2880en


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