Nodulation and Growth of Trifolium Subterraneum L. CY. Mount Barker in Agar Culture

Abstract

The presumptive effect of root exudates on the course of nodulation of Trifolium subterraneum L. cv. Mount Barker in agar culture was investigated by means of the preplanting technique. The technique was also re-examined with a view to its use for the bioassay of substances influencing nodule formation. Preplanting was found to remove unidentified nitrogenous compounds from the agar media. It was also found that some of the data obtained are subject to observer effects.