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Print version ISSN 0006-8705
SALIBE, Ariane Busch et al. Rooting cuttings of rootstocks of grape vine 'vr 043-43' submitted to the stratification, indolebutyric acid and boric acid. Bragantia [online]. 2010, vol.69, n.3, pp. 617-622. ISSN 0006-8705. http://dx.doi.org/10.1590/S0006-87052010000300013.
The present work had as objective to study the rooting of rootstocks 'VR 043-43' (V. vinifera x V. rotundifolia), testing different concentrations of indolebutyric acid (0, 1.000, 2.000 and 3.000 mg L-1), boric acid (0 and 150 μg L-1) and the technique of the stratification at 4 °C for 48 hours in cooled chamber. We used a randomized complete block design, in factorial scheme 4 x 2 x 2, with five repetitions and each parcel represented for eight cuttings. After 120 days of planting the cuttings, the following biometric data were measured: percentage of rooting cuttings, average length root, mass of the aerial part, mass of the radicial system and number of roots. It was verified that the stratification of the cuttings and the use of boric acid did not affect the rooting of the rootstocks 'VR 043-43'. With regard the treatment with indolebutyric acid, the concentration of 3.000 mg L-1 significantly favored the root development of the rootstock cuttings.
Keywords : propagation; development of root; cutting.