Section 6
Chapter 5,952

Mycorrhizal development and growth of royal pine seedlings pinus engelmanni with inoculation of pisolithus tinctorius

Quintos, M.; Valdes, M.

Revista Latinoamericana de Microbiologia 29(2): 189-192


ISSN/ISBN: 0187-4640
Accession: 005951186

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Mycelial inoculum of Pisolithus tinctorius was propagated to inoculate royal pine (Pinus engelmanii) seedlings growing in nursery to evaluate the effect of inoculation with pure cultures in this pine species through ectomycorrhization and seedling growth. The experimental site is a communal land of forest exploitation situated at 65 km to the southwest of Vicente Guerrero, Durango. The royal pine is very common in the whole region. The nursery soil was fumigated before planting. Measurements done after 6 and 12 months showed that the beneficial effect of inoculation can be observed only after 12 months; seedlings volume and dry weight were significantly increased, 165 and 60%. Ectomycorrhizacion was low (24% of felder roots in treated seedlings and 6% in control seedlings). Not all the seedlings were ectomycorrhizal, after 12 months the inoculated seedlings bearing ectomycorrhizae represented 90% and 60% the uninoculated ones.