Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/13906
Title: Fluorescência transiente da clorofila a e crescimento vegetativo em cafeeiro conilon sob diferentes fontes nitrogenadas
Chlorophyll a fluorescence transient and vegetative growth in conilon coffee under different nitrogen sources
Keywords: Cafeicultura
Nitrogênio
Nitrogen
Ciências Agrárias
Coffea canephora
Nutrição
Nutrition
Issue Date: 2017
Citation: OLIOSI, G. et al. Fluorescência transiente da clorofila a e crescimento vegetativo em cafeeiro conilon sob diferentes fontes nitrogenadas. Coffee Science, Lavras, v. 12, n. 2, p. 248 - 259, abr./jun. 2017.
Abstract: The use of nitrogen fertilizers is an effective resource to increase the coffee yield, so that the improvement and /or generation of new techniques that assist in the management of nitrogen fertilization are essential, as will contribute to increase nitrogen use efficiency (N). Thus, this study aimed to determine the chlorophyll a fluorescence transient and vegetative growth in Conilon coffee under different nitrogen sources. The experiment was carried out in Nova Venécia - ES - Brazil, on coffee plantation Conilon cultivar “Vitória Incaper 8142”. Were evaluated five sources of nitrogen fertilizers: urea common, urea + NBPT, urea + Cu and B, urea + S, and ammonia nitrate. The chlorophyll a fluorescence maximum did not differ in any of the times examined. The values of relative chlorophyll index (RCI) alternated their significance with respect to treatments throughout the evaluation dates. The N sources were not responsible, singly, with changes to the RCI. The sources of nitrogen fertilizers with increased efficiency exhibited low influence on transient fluorescence of chlorophyll a and do not influence the vegetative growth of the coffee.
URI: http://repositorio.ufla.br/jspui/handle/1/13906
http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/1268
Appears in Collections:Coffee Science

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