Resumo

RAFAEL, Pio et al. Rooting of apical cuttings of fig plants cv. 'Roxo de Valinhos' treated with cold-humid stratification and IBA. Rev. Ceres [online]. 2010, vol.57, n.3, pp. 401-404. ISSN 0034-737X.  http://dx.doi.org/10.1590/S0034-737X2010000300017.

The objective of the present work was to evaluate the effects of cold-humid stratification and IBA on the rhizogenesis of apical cuttings of fig plants cv. 'Roxo de Valinhos'. Cuttings were collected from the apical portion of branches at the end of the dormant period (July), and standardized with 20 cm-length and 0.7 cm-diameter. The cuttings were stratified (cuttings wrapped in moist newspaper and protected with plastic bag at temperature of 4ºC, in BOD camera) for different periods (0, 15, 30, 45 and 60 days) and then, treated and non-treated with 2000 mg L^-1 of IBA for 10 seconds. The treated cuttings were buried in sand moistened in the nursery (50% of brightness). After 60 days of each stratification period, cuttings were evaluated for the percentage of rooting, the percentage of sprouted cuttings, and the average number of shoots and roots per cutting. The results showed that apical cuttings of fig plants cv. 'Roxo de Valinhos' stratified in cold-humid for 30 days and subsequently treated with 2000 mg L^-1 of IBA have greater rhizogenesis potential.

Palavras-chave : Cutting; Ficus carica L; indolbutyric acid.