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Selection for reduced carbon isotope discrimination increases aerial biomass and grain yield of rainfed bread wheat

Rebetzke, G J; Condon, Anthony G; Richards, Robert I; Farquhar, Graham


Genetic gain is characteristically slow when selecting directly for increased grain yield under water-limited conditions. Genetic increases in grain yield may be achieved through increases in aerial biomass following selection for greater transpiration efficiency (TE as aerial biomass/water transpired). Strong negative correlations between TE and carbon isotope discrimination (Δ) in wheat (Triticum aestivum L.) suggest that selection of progeny with low Δ may increase TE and aerial biomass...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Crop Science


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