Flood Tolerance of Seeds and Seedlings of Three Native Forest Species of South America

Authors

DOI:

https://doi.org/10.15359/rca.54-2.11

Abstract

[Introduction]: In the last decades, several countries of South America registered intense rainfalls and floods affecting riparian and gallery forests. Yet knowledge of the flooding tolerance of forest species is very limited. [Objective]: This study aimed to evaluate seeds and seedlings behavior of Luehea divaricata Mart., Parapiptadenia rigida (Benth.) Brenan, and Guibourtia hymenaeifolia (Moric.) J. Léonard exposed to ex-situ flooding regimes. [Methods]: Seeds of the selected species were immersed in water over seven different periods. After immersion seeds were sown, and their germination percentage and seedlings survival were evaluated for 30 days. [Results]: L. divaricata reduced its germination rate during the experiment from 45.9 % to 23.1 %. One fifth of the seeds of this species kept the germination capability even after 30 days of the immersion treatment. A visible loss of the germination capability and seedling survival was observed in P. rigida and G. hymenaeifolia when the immersion period exceeded five days. [Conclusions]: The response of seeds to immersions varied between species, being L. divaricata the species with better tolerance to flooding conditions.

Author Biographies

Victoria R. Kubota, Universidad Nacional de Asunción

Ingeniera forestal, académica de la Facultad de Ciencias Agrarias.

Derlis N. Britez, Universidad Nacional de Asunción

Estudiante de la carrera de Ingeniería Forestal, Facultad de Ciencias Agrarias.

Gabriel A. Duete, Universidad Nacional de Asunción

Estudiante de la carrera de Ingeniería Forestal, Facultad de Ciencias Agrarias.

Manuel M. Enciso G., Universidad Nacional de Asunción

Ingeniero forestal, académico de la Facultad de Ciencias Agrarias.

María Lis García, Universidad Nacional de Asunción

Ingeniera forestal, académica de la Facultad de Ciencias Agrarias.

Sara B. Guillén, Universidad Nacional de Asunción

Estudiante de la carrera de Ingeniería Forestal, Facultad de Ciencias Agrarias.

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Published

2020-07-01

How to Cite

Kubota, V. R., Britez, D. N., Duete, G. A., Enciso G., M. M., García, M. L., & Guillén, S. B. (2020). Flood Tolerance of Seeds and Seedlings of Three Native Forest Species of South America. Tropical Journal of Environmental Sciences, 54(2), 190-200. https://doi.org/10.15359/rca.54-2.11

Issue

Section

Technical Notes

How to Cite

Kubota, V. R., Britez, D. N., Duete, G. A., Enciso G., M. M., García, M. L., & Guillén, S. B. (2020). Flood Tolerance of Seeds and Seedlings of Three Native Forest Species of South America. Tropical Journal of Environmental Sciences, 54(2), 190-200. https://doi.org/10.15359/rca.54-2.11

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