Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/50901
Título: Anatomy and growth of the epiphytic cactus Epiphyllum phyllanthus under different radiation conditions
Palavras-chave: Cacti
Ornamental epiphytes
Plant anatomy
Sciophytes
Shading
Cactos
Plantas epífitas ornamentais
Anatomia vegetal
Ciófitas
Sombreamento
Data do documento: Mai-2022
Editor: Taylor & Francis Group
Citação: CHAVES, M. P. B. et al. Anatomy and growth of the epiphytic cactus Epiphyllum phyllanthus under different radiation conditions. Plant Ecology & Diversity, [S.I.], v. 15, n. 1-2, p. 39-49, 2022. DOI: 10.1080/17550874.2022.2078245.
Resumo: Background: Plants develop mechanisms that confer tolerance to sun or shade exposure and the knowledge of their responses may help to devise strategies for the conservation of natural populations and their propagation. Aims: We study the effect of shading on the ecophysiology and anatomy of Epiphyllum phyllanthus to determine its plasticity and tolerance. Methods: Specimens of E. phyllanthus were subjected to full sun, 35%, 75%, and 85% shading for 60 days. The growth characteristics, phylloclade anatomy and water content in the plants were quantified and compared. Results: All individuals subjected to full sun and 35% shading had died. A shading of 85% produced the highest fresh and dry mass of the stems. Higher shading caused no effect in the allocation of biomass to stems or roots or on the relative growth rate, net assimilation rate, leaf area ratio or water content. The thickness of the phylloclade increased with increased shading. The highest stomatal density on both surfaces was observed in the treatment with 75% shading. Conclusion: E. phyllanthus is a sciophytic plant that requires shade to survive. Its main strategy appears to be the greater accumulation of water in its phylloclade under more shaded conditions, which stimulates plant growth.
URI: https://doi.org/10.1080/17550874.2022.2078245
http://repositorio.ufla.br/jspui/handle/1/50901
Aparece nas coleções:DBI - Artigos publicados em periódicos

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