Abstract
ABSTRACT The objective of this study was to evaluate the rooting and some physiological characteristics of Lantana camara L. (Verbenaceae) stakes in different concentrations of indolebutyric acid (IBA) and its association with the arbuscular mycorrhizal fungi (AMF) Claroideoglomus etunicatum (W.N. Becker & Gerd.) C. Walker & A. Schüssler e Gigaspora albida N.C. Schenck & G.S. Sm. The experimental design was completely randomized in a 3x3 factorial scheme with three replicates, where the first factor was the AMF and the second factor by doses of IBA (0; 1.0 and 1.5 mg .mL-1). The results showed that the presence of AMF in the substrate, as well as the IBA, isolated or in association stimulates the rooting and some physiological characters of L. camara cuttings.
Highlights
Lantana camara L. (Verbenaceae) sensu stricto is a woody shrub native to America, from Mexico, the United States, Jamaica and Brazil (Sanders 1987), the genus has a pantropical distribution with some species from Africa and India (Day et al 2003)
The cuttings treated without arbuscular mycorrhizal fungi (AMF), without indolebutyric acid (IBA), and with only IBA at the concentration of 1 mg.mL-1, along with the ones treated with AMF and 1 mg.mL-1 IBA showed the highest sprouting percentages
The results showed that L. camara cuttings, when inoculated with mycorrhizal fungi in the presence of IBA, had a considerable increase in their biometric characteristics, in some cases there was no difference in comparison to the control
Summary
Lantana camara L. (Verbenaceae) sensu stricto is a woody shrub native to America, from Mexico, the United States, Jamaica and Brazil (Sanders 1987), the genus has a pantropical distribution with some species from Africa and India (Day et al 2003). (Verbenaceae) sensu stricto is a woody shrub native to America, from Mexico, the United States, Jamaica and Brazil (Sanders 1987), the genus has a pantropical distribution with some species from Africa and India (Day et al 2003). The species generally dominates understory vegetation in disturbed areas, often forming dense monospecific vegetation, being highly invasive, occupying a large percentage of vegetation cover in regions where it is considered exotic (Kirimuhuzya et al 2009). In these areas, L. camara represents a threat to biodiversity, due to its rapid growth (Day et al.2003) and its produced allelochemicals (Gantayet et al 2014). Universidade do Estado do Rio Grande do Norte, Departamento de Ciências Biológicas, Rua Professor Antônio Campos, s/n, BR 110, Km 48, Bairro Costa e Silva, 59600-000, Mossoró, Rio Grande do Norte, Brasil
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