Reabilitação das margens dos cursos de água: como produzir plantas lenhosas de qualidade por estacaria caulinar?

Recursos Hídricos 01/2009; 30:55-62.


The availability of good quality woody riparian plants for revegetation of river banks is a key factor for river
rehabilitation success. This study aimed to determine the feasibility of nursery production of those plants using stem cuttings.
Black alder (Alnus glutinosa (L.) Gaertn.), glossy buckthorn (Frangula alnus Mill.), narrowleaf ash (Fraxinus angustifolia
Vahl.), oleander (Nerium oleander L.), willow (Salix salvifolia Brot. subsp. australis Franco) and tamarisk (Tamarix africana
Poir.) stem cuttings were collected in the Odelouca river basin (Algarve) and indole-3-butyric acid was tested as rooting
hormone, with and without rooting substrate warming. Rooting success was greater than 65% for cuttings collected in winter,
with all species with the exception of black alder. The spring propagation period was favorable only for the oleander, whith
rooting success rate higher than 98%. The rate of rooting success in black alder was lower than 50%, with scarce new root
formation. That indicates low performance of this method for good quality plant production of that species.

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