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Article
Indole Butyric and Boric Acids in the Rooting of Atemoya “Thompson” Stem Cuttings
Author(s)
Fabrício Custódio de Moura Gonçalves1, Maurício Dominguez Nasser1, Lucas Lencioni Arruda1, Gisela Ferreira2, Elizabeth Orika Ono2 and João Domingos Rodrigues2
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DOI:10.17265/2161-6264/2018.03.003
Affiliation(s)
1. Faculty of Agricultural Sciences, Universidade Estadual Paulista, Botucatu 18.610-307, SP, Brazil
2. Institute of Biosciences, Universidade Estadual Paulista, Botucatu 18.610-307, SP, Brazil
ABSTRACT
The current study aimed to evaluate the effect of indole butyric acid
(IBA) and boric acid to induce rooting on atemoya “Thompson” cuttings. A
randomized block design with 10 treatments and four blocks was laid out. The treatments consisted
in the use of different levels of IBA (i.e., 0, 500, 1,000, 2,000 and 4,000 mg/L) with or without boric
acid at 150 mg/L. The cuttings were
placed to root in expanded polystyrene (EPS) trays with 72 cells and kept in a greenhouse
under misting. At 120 d after planting, leaf dry and fresh masses (g), root dry and fresh
masses (g), percentage of
rooting, live cuttings (LC), live cuttings with
callus (LCC), number of roots per
cuttings and number of emitted leaves (NEL) were evaluated. Data were submitted to analysis of variance and
comparison of means by Tukey test at 5% probability. Results indicated no
statistically significant differences in both application methods (separate or
associated with boric acid) for all evaluated variables, except for LC, in which boric acid
provided higher survival rates. It could be concluded that the propagation
method using either separate IBA application or associated with boric acid is
unsuitable to induce rooting on atemoya “Thompson” cuttings.
KEYWORDS
Plant growth regulators, boron, propagation.
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