
%0 Journal Article
%A Whitelaw, M. A. 
%A Harden, T. J. 
%A Bender, G. L. 
%T Plant growth promotion of wheat inoculated with <emph type="2">Penicillium radicum</emph>
sp. nov.
%J Soil Research
%D 1997/03/05
%V 35
%N 2
%P 291-300
%K phosphate solubilisation, soil phosphate.
%R https://doi.org/10.1071/S96040
%U https://www.publish.csiro.au/paper/S96040 
%X A phosphate-solubilising isolate of Penicillium radicum (sp. nov.) was used to inoculate wheat (Triticum aestivum cv. Dollarbird) in a glasshouse experiment and a field trial, using low pH soils at 5 levels of phosphate application. When data for all phosphate application levels were combined, inoculation by P. radicum resulted in 14% increases in wheat yield in the field trial and increases in both phosphate uptake (10%) and yield (9%) in the glasshouse. In the glasshouse, the response to inoculation was higher at the nil phosphate application level (17%) than for the combined phosphate application levels (9%). This negative interaction indicates that growth promotion could be partially due to soil phosphate solubilisation by the fungus, with a greater response for soils with lower available P. However, other plant-growth promotion mechanisms may also be involved. 
