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Flooding avoidance Triplaris gardneriana Wedd. (Polygonaceae): growth and morpho-anatomical aspects Biological Sciences
Pontara, Vanessa; Bueno, Marcelo Leandro; Scremin-Dias, Edna.
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...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ciências Biológicas; Botânica Pantanal; Hypoxia; RGR; Flooding Botânica.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31267
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Fruit and seed biometry and germination of Victoria amazonica (Poepp.) J.C. Sowerby (Nymphaeaceae) from the Pantanal floodplain Biological Sciences
Tozin, Luiz Ricardo dos Santos; Corrêa-Da-Costa, Liana Baptista De Lima; Scremin-Dias, Edna.
Numerous plant species are easily established in the wide flood plains of the Pantanal wetlands due to the environmental heterogeneity. The aquatic macrophytes excel in permanently flooded areas, particularly Nymphaeaceae species. Victoria amazonica, popularly known as the vitória-régia, is hallmarked for its beauty. However, the biology and conditions necessary for the seed germination of this flowering plant remain unknown. In the present study, the fruit and seed morphology and biometry were described and the seed germination was evaluated under different abiotic conditions. To this end, mature fruits of V. amazonica were collected from the bays near Paraguay River in the south Pantanal floodplain. The fruits and seeds were described and measured using...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquatic macrophyte; Hydrophytes; Water lilies; Vitória-régia Botânica.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/28621
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