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metadata.artigo.dc.title: Rooting biostimulants for Coffea arabica L. cuttings
metadata.artigo.dc.creator: Azevedo, Hariana Paula
Carvalho, Alex Mendonça
Rodrigues, Joyce Doria
Vidal, Douglas Alves
Santos, Heloisa Oliveira
metadata.artigo.dc.subject: Root system
Humic acid
Fulvic acid
Sistema radicular
Ácido húmico
Ácido fúlvico
metadata.artigo.dc.publisher: Universidade Federal de Lavras 2020
metadata.artigo.dc.identifier.citation: AZEVEDO, H. P. et al. Rooting biostimulants for Coffea arabica L. cuttings. Coffee Science, Lavras, v. 15, e151635, 2020. DOI:
metadata.artigo.dc.description.abstract: In the rooting process of Arabica coffee cuttings, plant hormones are used for inducing root formation. However, synthetic molecules cannot be used to form organic seedlings. The objective of this work was to evaluate the effect of nut grass extract and different concentrations and types of humic substances on Arabica coffee cuttings. Arabica coffee shoots were collected, and cuttings containing at least two buds were taken. The experiment had a three-factor design, 2 (without or with nut grass extract) x 2 (humic or fulvic acid) x 4 (0, 10, 25 and 50³). The following vegetative data were evaluated: shoot height (cm), survival, remaining leaves, leaf pairs, vigor and number of shoots. The root length, area, volume, diameter, and fresh and dry mass were also evaluated. The enzyme activity of H+-ATPase, catalase, superoxide dismutase, alcohol dehydrogenase and esterase was also quantified. The results showed that the Arabica coffee cutting rooting rate was increased when treated with humic acid at a concentration of 10³ in the presence of nut grass extract. The lowest oxidative stress was observed in the 10³ humic and fulvic acid treatments, regardless of the use of the extract.
metadata.artigo.dc.language: en_US
Appears in Collections:DAG - Artigos publicados em periódicos

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