Heliconia development as a function of different soil types and nitrogen doses

Abstract Heliconia psittacorum is a plant that stands out in tropical floriculture due to its inflorescence with bracts of different colors and its high ornamental value. The aim of this study was to assess the influence of nitrogen applied under different management methods on the development of he...

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Veröffentlicht in:Ornamental Horticulture (Campinas) 2024-01, Vol.30
Hauptverfasser: Oliveira, Leonardo de Almeida, Galvão, Jessivaldo Rodrigues, Pantoja, Matheus Vinícius da Costa, Souza, Joel Correa de, Ferreira, Antônia Kelly de Abreu, Oliveira, Maria Nayara Holanda de
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Sprache:eng
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Zusammenfassung:Abstract Heliconia psittacorum is a plant that stands out in tropical floriculture due to its inflorescence with bracts of different colors and its high ornamental value. The aim of this study was to assess the influence of nitrogen applied under different management methods on the development of heliconia plants (H. psittacorum). The experiment was carried out in a greenhouse, in the soil science area, from May to December 2018, at the Belém Campus of the Federal Rural University of Amazonia (UFRA). A completely randomized design was used, in a 4 x 2 factorial scheme, distributed over 5 replications. The factors were 4 doses of nitrogen fertilization (0, 20, 40 and 60 kg ha-1 of N) and 2 types of soil (conventional cultivation and forest). The variables used to analyze the treatments were: height, pseudostem diameter, fresh weight of the pseudostem, flower stem, leaves, rhizome and root. The results of the experiment were subjected to analysis of variance, compared using the Tukey test, where appropriate, and regression studies by adjusting the equations according to the doses of N used. There were significant differences in all the variables studied. The results of this study show that there is probably a certain shortage of the elements needed for plant nutrition and, with a greater supply of N, there is greater root development to make up for this deficiency. Resumo A Heliconia psittacorum é uma planta que possui destaque na floricultura tropical devido a sua inflorescência com brácteas de diversas colora-ções e seu elevado atributo ornamental. O objetivo deste trabalho foi avaliar a influência do nitrogênio aplicado, sobre diferentes manejos, no desenvol-vimento de plantas de helicônia (H. psittacorum). O experimento foi desenvolvido em casa de vegetação, na área de ciências do solo, no período de maio a dezembro de 2018, no Campus Belém da Universidade Federal Rural da Amazônia (UFRA). Foi utilizado o delineamento inteiramente casualizado, em esquema fatorial 4 x 2, distribuído em 5 repetições. Os fatores foram 4 doses de adubação nitrogenada (0, 20, 40 e 60 kg ha-1 de N) e 2 tipos de solo (cultivo convencional e de mata). As variáveis utilizadas para a análise dos tratamentos foram: altura, o diâmetro do pseudocaule, peso fresco do pseu-docaule, da haste floral, das folhas, do rizoma e da raiz. Os resultados do experimento foram submetidos à análise de variância, comparadas pelo teste de Tukey, quando pertinente, e estudos de regressão através do aj
ISSN:2447-536X
2447-536X
DOI:10.1590/2447-536x.v30.e242704