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metadata.artigo.dc.title: Vegetative and enzymatic analysis of the initial stages of Coffea arabica L. grown from seeds treated with humic substances
metadata.artigo.dc.creator: Azevedo, Hariana Paula Alves de
Carvalho, Alex Mendonça de
Viana, Mariana Thereza Rodrigues
Silva, Carlos Alberto
Santos, Heloisa Oliveira dos
Rodrigues, Joyce Doria
metadata.artigo.dc.subject: Fulvic acid
Humic acid
Seedling formation
metadata.artigo.dc.publisher: Academic Journals Sep-2019
metadata.artigo.dc.identifier.citation: AZEVEDO, H. P. A. de et al. Vegetative and enzymatic analysis of the initial stages of Coffea arabica L. grown from seeds treated with humic substances. African Journal of Agricultural Research, [S.l.], v. 14, n. 32, p. 1621-1628, Sept. 2019.
metadata.artigo.dc.description.abstract: Arabica coffee is a perennial crop usually propagated by seeds, which must be healthy and able to form normal plants. The objective of this study was to analyze the vegetative and enzymatic reactions in the initial stages of Arabica coffee seedlings treated with different humic substances and at different concentrations. A germination test was conducted with Arabica coffee seeds of the Topazio MG 1190 cultivar using humic substance doses of 0, 5, 10, 25, 50, 50 and 50 ³. The percent germination was evaluated at 15 days; the percent germination and root length were measured at 30 days; and the seedlings were removed at 45 days and stored at -80°C for subsequent evaluation of the enzymatic activity of catalase, superoxide dismutase, alcohol dehydrogenase, esterase, and H+ -ATPase. It is concluded that germination did not differ with the use of humic substances, and root length was greater at the 0 ³ dose. Although H + -ATPase responded positively to the application of humic substances, the catalase, superoxide dismutase, alcohol dehydrogenase, and esterase activities were also better at the lowest dose. Humic substances do not present agronomic benefits at the seedling stage for Arabica coffee and are not recommended as a possible seed treatment under these conditions.
metadata.artigo.dc.language: en_US
Appears in Collections:DCS - Artigos publicados em periódicos

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