Alelopathic effects of extracts of <em>Tradescantia zebrina</em> in germination of <em>Lactuca sativa</em>

Authors

  • Danielle Roballo de Moura ESUDA
  • Emmanoella Costa Guaraná Araujo Universidade Federal Rural de Pernambuco
  • Thiago Cardoso Silva Universidade Federal Rural de Pernambuco
  • Shyrlaine Lilian Moura Leão ESUDA
  • Tarcísio Viana de Lima Universidade Federal Rural de Pernambuco

DOI:

https://doi.org/10.5902/2316980X30681

Keywords:

Allelochemical potential, Exotic species, Aqueous extracts, Dois Irmãos State Park

Abstract

By releasing allelopathic substances, produced in the secondary metabolism, an individual can influence the development of other organisms in their surroundings. This study aimed to evaluate the effect of aqueous extracts of Tradescantia zebrina Heynh. ex Bosse. (zebrina) in the germination and initial development of seeds of Lactuca sativa L. (lettuce). The experiment was conducted under natural environment conditions (25°C and 72% RH), with extracts leaf and roots of zebrine at concentrations of 100%, 75%, 50% and 25%, using distilled water as a control treatment. Fifty seeds of lettuce were used, uniformly distributed in germitest® paper, duly sterilized and moistened with the solution, in gerbox® boxes, with five replicates. The observations lasted seven days, evaluating the percentage of germination (%G), germination speed index (GSI), mean germination time (t) and average germination velocity (v). These data were submitted to the statistical analysis, after which the applications of leaf extracts and zebrine roots reduced the percentage of germination and the germination speed of lettuce seeds, indicating their allelopathic effect.

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Author Biographies

Danielle Roballo de Moura, ESUDA

Engenheira Florestal, graduada pela UFRPE, pós-graduanda (Latu sensu) em Engenharia de segurança do trabalho na ESUDA

Emmanoella Costa Guaraná Araujo, Universidade Federal Rural de Pernambuco

Engenehira Florestal e mestrada em Ciências Florestais pela UFRPE e especialista em Gerência de processos educacionais pela UPE

Thiago Cardoso Silva, Universidade Federal Rural de Pernambuco

Engenheiro Florestal e mestrando em Ciências Florestais pela UFRPE

Shyrlaine Lilian Moura Leão, ESUDA

Engenheira Florestal, graduada pela UFRPE, pós-graduanda (Latu sensu) em Engenharia de segurança do trabalho na ESUDA

Tarcísio Viana de Lima, Universidade Federal Rural de Pernambuco

  Professor Dr. Associado 2 do Departamento de Ciência Florestal/UFRPE

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Published

2018-11-20

How to Cite

Moura, D. R. de, Araujo, E. C. G., Silva, T. C., Leão, S. L. M., & Lima, T. V. de. (2018). Alelopathic effects of extracts of <em>Tradescantia zebrina</em> in germination of <em>Lactuca sativa</em>. Revista Ecologia E Nutrição Florestal - ENFLO, 6(2), 45–50. https://doi.org/10.5902/2316980X30681

Issue

Vol. 6 No. 2 (2018)

Section

Articles

License

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Ecologia e Nutrição Florestal /Ecology and Forest Nutrition is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International https://creativecommons.org/licenses/by-nc/4.0/.