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dc.contributor.authorWildy, D.T.
dc.contributor.authorPate, J.S.
dc.contributor.authorSefcik, Lesley
dc.date.accessioned2020-02-13T05:32:53Z
dc.date.available2020-02-13T05:32:53Z
dc.date.issued2004
dc.identifier.citationWildy, D.T. and Pate, J.S. and Sefcik, L.T. 2004. Water-use efficiency of a mallee eucalypt growing naturally and in short-rotation coppice cultivation. Plant and Soil: international journal on plant-soil relationships. 262 (1-2): pp. 111-128.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/77909
dc.identifier.doi10.1023/B:PLSO.0000037030.61945.0d
dc.description.abstract

This study compared mature Eucalyptus kochii subsp. plenissima trees in inner regions or edges of natural bushland to young trees belt-planted through cleared agricultural land as uncut saplings or regenerating coppice over 2.7 years at Kalannie, Western Australia (320 mm annual rainfall). We assessed the ability of the species to alter its gas exchange characteristics, leaf physical attributes, and water-use efficiency of foliar carbon assimilation (WUE i) or of total dry matter production (WUE DM). Stomatal conductance (g s) varied five-fold between treatment means, with coppices exhibiting greatest values and mature bush least. Photosynthetic rates followed this trend. Leaf photosynthetic capacity estimated by chlorophyll content varied 1.3-fold parallel with variations in leaf thickness, with coppices rating lowest and mature edge trees most highly. WUE i varied 1.5-fold between treatments and was greatest in mature inner-bush and edge trees. Leaf photosynthetic capacity and g s were both correlated with WUE i. Carbon isotope composition (δ13C values) of new shoot dry matter produced early in a seasonal flush were similar to those of root starch but when averaged over the whole season correlated well with WUE i and gas exchange characteristics of trees of each treatment. Coppices showed poorest WUE i and most negative shoot tip δ13C but their WUE DM was high. This discrepancy was suggested to relate to carbon allocation strategies in coppices favouring fast growth of replacement shoots but not of roots. Physiology of coppice growth of E. kochii is usefully geared towards both rapid and water-use efficient production of woody biomass in water limited environments.

dc.languageEnglish
dc.publisherSPRINGER
dc.subjectScience & Technology
dc.subjectLife Sciences & Biomedicine
dc.subjectAgronomy
dc.subjectPlant Sciences
dc.subjectSoil Science
dc.subjectAgriculture
dc.subjectalley farming
dc.subjectcarbon isotope composition
dc.subjectcarbon partitioning
dc.subjectsemi-arid environment
dc.subjectstomatal conductance
dc.subjectstarch utilization
dc.subjectCARBON-ISOTOPE DISCRIMINATION
dc.subjectWESTERN-AUSTRALIA
dc.subjectGAS-EXCHANGE
dc.subjectTRANSPIRATION EFFICIENCY
dc.subjectC-13 DISCRIMINATION
dc.subjectNORTHERN AUSTRALIA
dc.subjectCAMALDULENSIS DEHN
dc.subjectBIOMASS PRODUCTION
dc.subjectPICEA-ABIES
dc.subjectLEAF GROWTH
dc.titleWater-use efficiency of a mallee eucalypt growing naturally and in short-rotation coppice cultivation
dc.typeJournal Article
dcterms.source.volume262
dcterms.source.number1-2
dcterms.source.startPage111
dcterms.source.endPage128
dcterms.source.issn1573-5036
dcterms.source.titlePlant and Soil: international journal on plant-soil relationships
dc.date.updated2020-02-13T05:32:53Z
curtin.departmentOffice of the Academic Registrar
curtin.accessStatusFulltext not available
curtin.facultyOffice of the Academic Registrar
curtin.contributor.orcidSefcik, Lesley [0000-0002-6877-6943]
dcterms.source.eissn1573-5036
curtin.contributor.scopusauthoridSefcik, Lesley [57192923946]


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