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Revista Árvore

On-line version ISSN 1806-9088


FREITAS, Teresa A. S. de et al. Root performace of eucalyptus stecklings, produced in different containers and substrates. Rev. Árvore [online]. 2005, vol.29, n.6, pp.853-861. ISSN 1806-9088.

The objective of this work was to evaluate the performance after the planting of eucalyptus stecklings, produced in different containers and substrates, with emphasis in root production and deformations. The stecklings were produced in tubes (50 cm3) and in pressed blocks (40 x 60 x 7cm -16800 cm3), and used as substrates: carbonized rice husk and eucalyptus husk; sugarcane bagasse and sugarcane filter cake; and peat. At ninety days the stecklings were transplanted to plastic bags (20 L), with soil from the planting area. This experiment was set in a completely randomized design, arranged in a 2 x 7factorial, constituted by two clones (natural hybrid of Eucalyptus grandis Hill ex Maiden and E. saligna Smith) and seven treatments, with variation of containers and substrates, with four replicates, constituted by four plants. At two months, the cuttings were evaluated considering their root collar diameter, height, number, length and superficial area of emitted roots, and system root deformations. The plants originated of stecklings produced in pressed blocks presented better performance than the tubes ones. The root deformations caused by containers persist after the nursery stage.

Keywords : Root; deformation; Eucalyptus.

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