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Grazing winter wheat relieves plant water stress and transiently enhances photosynthesis

Harrison, Matthew; Kelman, Walter; Moore, Andrew D; Evans, John R

Description

In order to model the impact of grazing on wheat growth, we measured photosynthesis in the field. Grazing may affect photosynthesis as a consequence of changes to leaf water status, nitrogen content per unit leaf area (Na) or photosynthetic enzyme activity. While light-saturated CO2 assimilation rates (Asat) of field-grown wheat were unchanged during grazing, Asat transiently increased by 33-68% compared to ungrazed leaves over a two-four week period after grazing ended. Grazing reduced leaf...[Show more]

CollectionsANU Research Publications
Date published: 2010-07-26
Type: Journal article
URI: http://hdl.handle.net/10440/1262
Source: Functional Plant Biology 37.8 (2010): 726-736
DOI: 10.1071/FP10040

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