Ectomycorrhizal inoculation of Anisoptera thurifera (Blanco) Blume and Shorea guiso (Blanco) Blume with ectomycorrhizal fungi in Philippine red soil

Aggangan, N. S. and Aggangan, J. S. and Bulan, J.C.O. and Limos, C. A. S. (2005) Ectomycorrhizal inoculation of Anisoptera thurifera (Blanco) Blume and Shorea guiso (Blanco) Blume with ectomycorrhizal fungi in Philippine red soil. [Conference or Proceeding]

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Abstract

Rooted cuttings of Anisoptera thurifera (Blanco) Blume and Shorea guiso (Blanco) Blume were prepared and inoculated with mycelial beads containing vegetative mycelia of ectomycorrhizal fungus: Pisolithus sp. 1 (PTG), Pisolithus sp.2 (H6394), or Astreus sp. and grown under nursery conditions. Pisolithus sp.1 was collected from an Acacia mangium stand, Pisolithus sp.2 from Eucalyptus stand while Astreus sp. from dipterocarp forest. After four months, Astreus sp. promoted the highest root colonization (38%), height increment (86%), fine root (51%), coarse root (27%), shoot (43%) and total (40%) dry weight of A. thurifera over the control treatment. It also promoted the highest shoot P uptake (41%) while Pisolithus sp.2 promoted the highest fine root P uptake (0.273 mg/root). Pisolithus sp.2 promoted the highest height increment (100%) in S. guiso. Uninoculated cuttings had the lowest height increment, dry weight and P uptake. A longer nursery and field experiments should be conducted to achieve a complete evaluation of the physiological functions of ECM association. More ECM strains associated with dipterocarps should be tested for selection of host compatibility.

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