Abstract
Abstract A total of 15 populations of white clover (Trifolium repens L.) collected from a variety of soils, and two cultivars of white clover were grown in two solution culture experiments. Concentrations of both aluminium (Al) and phosphorus (P) were varied. Populations and cultivars of white clover did not differ significantly in response to Al in either experiment, nor was there any evidence that response to Al was correlated with the pH of their native soil. However, genotypes within the various populations and cultivars of white clover differed significantly (p<0.01) in response to Al. Addition of 0.3 mM P alleviated the toxic effects of Al. Reasons for the apparent lack of population differentiation in response to Al in white clover are discussed.
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