Changes in the vesicular-arbuscular mycorrhizal dependency of Albizia ferruginea and Enterolobium cyclocarpum in response to soil phosphorus concentration
1994
Habte, M. | Musoko, M.
A greenhouse experiment was conducted to determine the degree to which Albizia ferruginea and Enterolobium cyclocarpum respond to colonization of their roots by the vesicular-arbuscular mycorrhizal fungus (VAMF) Glomus aggregatum. Plants were grown in pots containing a subsurface ultisol uninoculated or inoculated with the fungus at three target soil solution phosphorus (P) concentrations. VAMF inoculation enhanced pinnule P content of Albizia but not of Enterolobium at the native P concentration of the experimental soil. However, dry matter yield was not affected by VAMF inoculation for either species. Mycorrhizal inoculation effect was either negative or nil at the highest soil solution P concentration tested. The highest mycorrhizal inoculation effect was observed at soil P concentration of 0.02 mg/L. Based on these data, both Albizia and Enterolobium were classified as highly mycorrhizal dependent species.
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