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The impact of elevated atmospheric CO2 and nitrate supply on growth, biomass allocation, nitrogen partitioning and N2 fixation of Acacia melanoxylon

Schortemeyer, Marcus; Atkin, Owen; McFarlane, Nola; Evans, John


The interactive effects of nitrate supply and atmospheric CO2 concentration on growth, N2 fixation, dry matter and nitrogen partitioning in the leguminous tree Acacia melanoxylon R.Br. were studied. Seedlings were grown hydroponically in controlled-environment cabinets for 5 weeks at seven 15N-labelled nitrate levels, ranging from 3 to 6400 mmol m-3. Plants were exposed to ambient (~350 μmol mol-1) or elevated (~700 μmol mol-1) atmospheric CO2 for 6 weeks. Total plant dry mass increased...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Australian Journal of Plant Physiology


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