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Revista Árvore

Print version ISSN 0100-6762On-line version ISSN 1806-9088


WENDLING, Ivar  and  XAVIER, Aloisio. Indolbutiric acid and serial minicutting technique on rooting and vigor of Eucalyptus grandis clone minicuttings. Rev. Árvore [online]. 2005, vol.29, n.6, pp.921-930. ISSN 0100-6762.

The objective of this work was to evaluate the efficiency of the serial minicutting technique and the effects of different dosages (0, 500, 1500 and 3000 mg L-1) of the growth regulator indolbutiric acid (IBA), on the survival, rooting and radicular vigor of minicuttings in clones of Eucalyptus grandis. The IBA application caused no increase in rooting, survival and radicular vigor of the seedlings. In some evaluated characteristics and clones, toxic effects were found in concentrations of AIB above 500 mg L-1. The serial minicutting technique provided greater efficiency for the vegetative propagation of less-juvenile Eucalyptus grandis clones.

Keywords : Rejuvenation; Eucalyptus; vegetative propagation; clonal forestry.

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