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Madera y bosques

versão On-line ISSN 2448-7597versão impressa ISSN 1405-0471

Resumo

GOMEZ-ROMERO, Mariela; VILLEGAS, Javier; SAENZ-ROMERO, Cuauhtémoc  e  LINDIG-CISNEROS, Roberto. Effect of mycorrhyzation in the establishment of Pinus pseudostrobus in gullies. Madera bosques [online]. 2013, vol.19, n.3, pp.51-63. ISSN 2448-7597.

The establishment of Pinus pseudostrobus Lindl. was evaluated in three conditions of propagation and transplantation in gullies devoid of vegetation in the locality of Atécuaro, Municipality of Morelia, Michoacán. The first condition correspond to plants of known provenance, germinated and propagated under controlled conditions (stratified at 4 °C, germinated at 25 °C with 12 h of light and watered every other day), with the aim of having plants without mycorrhizae and with the ectomycorrhizal fungus Pisolithus tinctorius (Pers.) Coker et Couch. As a second condition, both groups where transplanted at 15 months of age with the addition of a fertile substrate (coconut fiber, bark and agrolite). In a nearby site, a third condition was a reforestation with plants of the same species but without controlling the aforementioned variables. The results show that the pine trees that were planted in the first condition performed better and had a higher survival than plants in the second reforestation (third condition) (P < 000,1). The survival of inoculated pines was 86%, in the absence of the fungus was 62% and 30% in the second reforestation. Inoculation is a good strategy for restoration projects in severely degraded and eroded sites, although it increases the costs it also increases survival and growth.

Palavras-chave : Erosion; Pisolithus tinctorius; propagation; reforestation; ecological restoration.

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