Resumo

PALACIOS ROMERO, Abraham et al. Pinus leiophylla Schiede ex Schltdl. et Cham. survival in the field from the addition of cell phenolic foam. Rev. mex. de cienc. forestales [online]. 2015, vol.6, n.32, pp.83-92. ISSN 2007-1132.

Several reforestation programs to recover deforested areas have been installed in Mexico. However, the evaluation results indicate that survival is less than 60 %, which is attributed to prolonged drought as a major cause of mortality. Therefore, the open cell phenolic foam is proposed as an alternative to this problem, which is a resin capable of storing 40 times its own weight in water. In order to test its effectivity, a plantation according to the methodology proposed by the Comisión Nacional Forestal in the community of San Sebastián , in Huasca de Ocampo municipality, Hidalgo State, in which one year- old Pinus leiophylla plants produced in a technified system were used. Five treatments of open cell phenolic foam blocks of different hydrated volumes were tested in an experimental design of randomized complete block. Survival, growth in height and diameter increase were determined. A significant increase up to 26 % was observed in the survival of plants with foam blocks of 462 and 616 cc with respect to the control; regarding height growth, significantly higher growth, up to 6.6 cm was observed in plants with phenolic foam of 462 cc, a reaction to which did not happen with the diameter.

Palavras-chave : Growth; water stress; forest plantation; water reservoir; reforestation; drought resistance.

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