Responses of radish culture to phosphate-solubilizing fungi

Abstract

The objective of this work was to study the effect of phosphate-solubilizing fungi MSF-044, MSF-062 (Penicillium sp.) and MSF-087 (Aspergillus sp.) and soluble phosphate [Ca(H₂PO₄)₂.2H₂O] at 0.0 , 4.5 , 9.0 , 17.5 , 35.0 , 70.0 and 140.0 mg kg^-1 P on dry matter production and P uptake of radish, in non-sterilized soil, under green house conditions. Isolates differed in their capacity to stimulate dry matter production of plants, depending upon the P level. Isolates MSF-044 and MSF-062 were more efficient under low P (4.5 to 17.5 mg kg^-1 P), while the isolate MSF-087 only stimulated dry matter production in the highest P level (140.0 mg kg^-1 P). Plants inoculated with the isolate MSF-062, at 17.5 mg kg^-1 P, presented no differences in dry matter compared to non-inoculated plants, with 70.0 mg kg^-1 P. Phosphorus uptake by inoculated plants did not differ between treatments.