Methods of white clover inoculation — their effect on competition for nodule formation between naturalised and inoculated strains ofRhizobium trifolii

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Abstract
An agar tube culture method demonstrated that white clover (Trifolium repens L.) shoot dry welght was mcreased more by nodulation with a strain of Rhizobium trifolii Dangeard 1926. recommended for inoculation of this host, than with strains isolated from pasture soils. A glasshouse trial showed that both liquid and granular inoculation of these soils with a streptomycin-resistant strain of R. trifolii derived from the recommended strain increased both the shoot dry weight and the proportion of nodules containing the introduced strain, compared with conventional seed inoculation.