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Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
Provedor de dados: Revista Ciência Agronômica (RCA)
Autores: Giampaoli,Patricia; Santos,Daniela Soares dos; Mollo,Luciana; Kanashiro,Shoey; Tavares,Armando Reis.
ABSTRACT The aim of this study was to evaluate the effect of urea fertiliser on the bromeliad, Aechmea fasciata. Plants were submitted to weekly treatments with a solution of 0.0, 0.5, 1.0, 1.5 or 2.0 g urea L-1. After 210 days of the experiment, biometric variables of growth and development of the root and shoot systems were analysed, together with foliar levels of chlorophyll a and b, and of carotenoids. The experimental design was of randomised blocks with four replications; eight plants were used per plot. The data were submitted to regression analysis. The highest values for chlorophyll a and carotenoid content were obtained at a concentration of 1.23 g L-1 urea, and for chlorophyll b at a concentration 1.75 g L-1 urea. Plants of A. fasciata submitted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bromeliaceae; Nitrogen; Mineral nutrition; Chlorophyll.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400657