ROOTING OF GUANANDI (Calophyllum brasiliense CAMBESS) CUTTINGS USING INDOLE-BUTYRIC ACID
No hay miniatura disponible
Fecha
Autores
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidade Federal de Lavras
Resumen
Descripción
Commercial reforestation of Brazilian native species to produce hardwoodfor sawmills has been recently intensiÀed in the country. Among the potential speciesplanted by the logging industry is guanandi (Calophyllum brasilienseCambess) because it iswidely distributed in the country, highly adapted to different soil and climate conditions,good bole form and high quality timber. The development of genetic improvementprograms should prioritize gains in productivity and yields in the medium and long term.For such programs to be successful, the study of vegetative propagation techniques toabbreviate steps in forest improvement and allow its mass production is fundamental. Toassess the viability of vegetative propagation of the species, two successive experimentswere carried out during two years testing the best type of cutting, hormone concentrationand management. Different cuttings types submitted to increasing doses of indole-butyricacid (IBA) were tested to evaluate survival, sprouting, rooting and callus formation. Resultsindicate that the species is viable for vegetative propagation with 85 to 90% rooting ofcuttings from seedlings in the IBA concentrations of 3000 to 7000mg.L-1. For the cuttings,sprouting from the base of adult trees 3000mg.L-1was the best concentration of IBA.
Palabras clave
Agrociencias