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ISHS Acta Horticulturae 605: II International Symposium on Fig

ROOTING OF FIG (FICUS CARICA L.) CUTTINGS: CUTTING TIME AND IBA

Authors:   N.N.J. Chalfun, M. Pasqual, P.M. Norberto, L.F. Dutra, J.M. Cavalcante-Alves
Keywords:   propagation, growth regulators, auxin, greenhouse, season
DOI:   10.17660/ActaHortic.2003.605.21
Abstract:
The purpose of this study, which was carried out in greenhouse at an orchard at the Universidade Federal de Lavras (UFLA), a governmental funded University, was to evaluate the influence of cutting time collecting and IBA (indolebutyric acid) on the fig tree propagation. The cuttings were collected, from one year old branches of adult fig trees cultivar 'Roxo de Valinhos', every fortnight between April and August, then they were treated and non-treated with IBA (100 mg.L-1) for 24 hours. A completely randomized design having four replications of ten cuttings was used. A mixture of soil and sand at a 3:2 ratio (v/v) was used as substrate. After 90 days some evaluations were made: cuttings that rooted; cuttings that rooted and sprouted; root and aerial part dry matter weight. There was a decrease on the percentage of rooted cuttings as the cutting time went by. The highest percentages were obtained for the months of April and May (92.5% without IBA and 100% with IBA). The highest percentages of cuttings which sprouted with roots were obtained for the early cuttings. The application of IBA, for all cutting times, increased the dry matter weight of shoots and roots, but as cutting time went by, this increase in value decreased significantly.

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