<b>Influence of light on the initial growth of invasive <i>Cryptostegia madagascariensis</i> Bojer in the Brazilian semiarid region

  • Selma Freire de Brito Universidade Federal do Ceará
  • Charles Lobo Pinheiro Universidade Federal do Ceará
  • Francisco Carlos Barboza Nogueira Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis
  • Sebastião Medeiros Filho Universidade Federal do Ceará
  • Dalva Maria da Silva Matos Universidade Federal de São Carlos

Resumo

The invasion by Cryptostegia madagascariensis causes economic and environmental problems in Northeastern Brazil. Current study evaluates the initial growth of C. madagascariensis on light gradient. The experiment used 0, 30, 50 and 70% shading treatments arranged in a completely randomized design and evaluated in four periods, namely, 35, 50, 65 and 80 days. Height, absolute growth rate, relative growth rate, number of side branches, number of leaves, leaf area, specific leaf area, leaf area ratio, root mass ratio, stem mass ratio, leaf mass ratio and leaf area/root mass ratio were evaluated. Results showed that the height was greater in shade environments, and the greater the available light, the greater was the number of side branches. C. madagascariensis is able to change the leaf area, specific leaf area and biomass allocation in different shadings. Since C. madagascariensis varies growth forms and performs morphological adjustments to increase light uptake, the plant has warranted success during the initial growth under different shadings.

 

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Biografia do Autor

Selma Freire de Brito, Universidade Federal do Ceará
Bióloga, mestre em Agronomia/Fitotecnia e doutorado em Ecologia e Recuros Naturais em andamento
Charles Lobo Pinheiro, Universidade Federal do Ceará
Seed Analysis Laboratory (LAS - Laboratório de Análise de Sementes), Plant Science Department
Sebastião Medeiros Filho, Universidade Federal do Ceará
Seed Analysis Laboratory (LAS - Laboratório de Análise de Sementes), Plant Science Department
Dalva Maria da Silva Matos, Universidade Federal de São Carlos
Hydrobiology Department
Publicado
2015-07-01
Como Citar
Brito, S. F. de, Pinheiro, C. L., Nogueira, F. C. B., Medeiros Filho, S., & Matos, D. M. da S. (2015). <b>Influence of light on the initial growth of invasive <i>Cryptostegia madagascariensis</i&gt; Bojer in the Brazilian semiarid region. Acta Scientiarum. Biological Sciences, 37(3), 385-392. https://doi.org/10.4025/actascibiolsci.v37i3.28179
Seção
Morfofisiologia Vegetal

 

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