Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/9249
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dc.contributor.authorDevadas, Rakheshen
dc.contributor.authorLamb, Daviden
dc.contributor.authorSimpfendorfer, Stevenen
dc.contributor.authorBackhouse, Daviden
dc.date.accessioned2012-01-18T09:38:00Z-
dc.date.created2009en
dc.date.issued2010-
dc.identifier.urihttps://hdl.handle.net/1959.11/9249-
dc.description.abstractThe project dealt with modelling the interaction of nitrogen nutrition and stripe rust (yellow rust) incidence in wheat using spectral reflectance characteristics at different spatial scales as observed by ground based sensors, airborne and satellite data. Experimental plots, with different levels of N application, variety and seed treatment for stripe rust disease, were set up in crop seasons 2006 and 2007. Temporal ground based multispectral data were collected using Crop Circle ACS-210 (Holland Scientific Inc., NE, USA) and the GreenSeeker model 505 (Ntech Industries Inc., CA, USA). Hyperspectral data were collected using USB 2000 (Ocean Optics, FL, USA). This ground based data were analysed in relation to airborne data collected using an airborne multispectral sensor, UNEBiRD (UNE, Armidale). Multispectral and hyperspectral vegetation indices (VIs) derived from the two years of data were analysed in relation to the occurrence of N deficiency, disease incidence, LAI, chlorophyll content, biomass and yield in wheat. Further, applicability of these VI based models at a higher spatial scale was examined employing multispectral (Landsat 5TM ) and hyperspectral (EO1 Hyperion) satellite data acquired over commercial wheat paddocks in northern NSW, Australia. Analysis of agronomic data confirmed the expected outcomes of a positive correlation between N application and yield up to a certain rate of N application, with further addition of N causing yield to plateau or subsequently decrease. This study also confirmed that there was significant positive correlations between N application and stripe rust severity.en
dc.languageenen
dc.titleAnalysis of the interaction of nitrogen application and stripe rust infection in wheat using 'in situ' proximal and remote sensing techniquesen
dc.typeThesis Doctoralen
dc.subject.keywordsNatural Resource Managementen
local.contributor.firstnameRakheshen
local.contributor.firstnameDaviden
local.contributor.firstnameStevenen
local.contributor.firstnameDaviden
local.subject.for2008050209 Natural Resource Managementen
local.subject.seo2008960703 Environmental Education and Awarenessen
local.subject.seo760104 Environmental education and awarenessen
dcterms.RightsStatementCopyright 2009 - Rakhesh Devadasen
dc.date.conferred2010en
local.thesis.degreelevelDoctoralen
local.thesis.degreenameDoctor of Philosophyen
local.contributor.grantorUniversity of New Englanden
local.profile.schoolPhysics and Electronics Engineeringen
local.profile.schoolOffice of Faculty of Science, Agriculture, Business and Lawen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailrdevadas@une.edu.auen
local.profile.emaildlamb@une.edu.auen
local.profile.emaildbackhou@une.edu.auen
local.output.categoryT2en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune_thesis-20090505-065146en
local.contributor.lastnameDevadasen
local.contributor.lastnameLamben
local.contributor.lastnameSimpfendorferen
local.contributor.lastnameBackhouseen
dc.identifier.staffune-id:rdevadasen
dc.identifier.staffune-id:dlamben
dc.identifier.staffune-id:dbackhouen
local.profile.orcid0000-0003-0663-6002en
local.profile.roleauthoren
local.profile.rolesupervisoren
local.profile.rolesupervisoren
local.profile.rolesupervisoren
local.identifier.unepublicationidune:9440en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleAnalysis of the interaction of nitrogen application and stripe rust infection in wheat using 'in situ' proximal and remote sensing techniquesen
local.output.categorydescriptionT2 Thesis - Doctorate by Researchen
local.relation.urlhttp://www.arspc.org/abstract/69.htmen
local.thesis.borndigitalyesen
local.search.authorDevadas, Rakheshen
local.search.supervisorLamb, Daviden
local.search.supervisorSimpfendorfer, Stevenen
local.search.supervisorBackhouse, Daviden
local.uneassociationYesen
local.year.conferred2010en
Appears in Collections:Thesis Doctoral
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