<b>Flooding avoidance <i>Triplaris gardneriana</i> Wedd. (Polygonaceae): growth and morpho-anatomical aspects

  • Vanessa Pontara Universidade Federal de Mato Grosso do Sul
  • Marcelo Leandro Bueno Universidade Federal de Minas Gerais
  • Edna Scremin-Dias Universidade Federal de Mato Grosso do Sul
Palavras-chave: Pantanal, hypoxia, RGR, flooding

Resumo

The aim of this study was to analyze the effect of flooding in Triplaris gardneriana Wedd, cultivated in drained soil (control) and in flooded condition. The experiment was developed in a greenhouse, using plants with 90 days after the emergency. The response to treatment was evaluated at 0, 30, 60 and 90 days. Growth measurements were made, such as biomass allocation, relative growth rate (RGR). Adventitious roots were not measured only observed, as well as the development of hypertrophied lenticels. The RGR was continuously reduced along the 90 days in flooding conditions for the roots, stem and leaves, compared to control. The flooding of the substrate caused alterations such as: increasing of the cortex width and diameter of the central cylinder of root and increasing the diameter of the vessel element of the root and stem. Results show that T. gardneriana remains under stress when submitted to flooding. Therefore, the production of structures as lenticels, aerenchyma and adventitious roots, structures related to the avoidance of this type of stress, were key factors for the maintenance and survival of T. gardneriana.


 

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Publicado
2016-12-08
Como Citar
Pontara, V., Bueno, M. L., & Scremin-Dias, E. (2016). <b>Flooding avoidance <i>Triplaris gardneriana</i&gt; Wedd. (Polygonaceae): growth and morpho-anatomical aspects. Acta Scientiarum. Biological Sciences, 38(3), 341-346. https://doi.org/10.4025/actascibiolsci.v38i3.31267
Seção
Morfofisiologia Vegetal

 

0.6
2019CiteScore
 
 
31st percentile
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0.6
2019CiteScore
 
 
31st percentile
Powered by  Scopus