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Revista de Ciências Agrárias

Print version ISSN 0871-018X

Abstract

VERAS, Mário L. M. et al. Use of plant regulators in the propagation via cutting of umbu-cajazeira. Rev. de Ciências Agrárias [online]. 2018, vol.41, n.3, pp.161-170. ISSN 0871-018X.  http://dx.doi.org/10.19084/RCA17153.

The umbu-cajazeira is one of the most exploited native fruits in the Brazilian semi-arid region, since its fruits are highly sought after. In this sense, the objective was to evaluate the treatment of stock plants with zinc and rooting of umbu-cajazeira cuttings. The experimental design was completely randomized, with four replications. The experiment was conducted in a completely randomized design, with nine treatments, with levels determined by the matrix "Central Box Compound" for the doses of zinc (0; 5.8; 30; 34.2 and 40 mg L-1) and combinations with AIB doses (0; 872,35; 3.000; 5.127,65 and 6000 mg L-1), and four replicates. Treatment of stock plants with zinc did not affect the percentage of cuttings sprouts, number, length and diameter of shoots, rooting and dry mass production of umbu-cajazeira cuttings; Indolbutyric acid directly influences the rooting of umbu-cajazeira cuttings, and the maximum concentration of 6000 mg L-1 of IBA provides the highest percentages of adventitious rooting, with 43.75% of rooted cuttings.

Keywords : Spondias spp.; rooting; zinc; phytohormone.

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