Influence of radiation level on plant growth, yield and quality of essential oil in carqueja

  • Silva F
  • Pinto J
  • Cardoso M
  • et al.
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Abstract

In this research it was studied the influence of the radiation intensity on growth and on the essential oil yield of Baccharis trimera. The plants growth was studied under four levels of radiation: 100, 60, 50 and 20% during a 259-day long period. Plants were then evaluated for height, number of nodes, branches, stem diameter (at the height of the colon), biomass formation, and content and composition of the oil. The highest level of radiation caused increases in all of the variables evaluated, except for height, which was reduced with increasing radiation. Essential oil content also increased with increasing level of radiation.A influência do nível de radiância no crescimento da planta, rendimento e qualidade do óleo essencial de Baccharis trimera foi estudado neste trabalho. As plantas foram cultivadas sob 4 níveis de radiância: 100, 60, 50 e 20% durante um período de 259 dias. Foram avaliadas, quanto ao comprimento, número de nós, ramos, diâmetro do caule (altura do colo), acúmulo de fitomassa, conteúdo e composição do óleo essencial. O nível mais elevado de radiação causou aumento em todas as características avaliadas, exceto para o comprimento, que foi reduzido com o aumento na radiação. O rendimento de óleo essencial também aumentou com a elevação do nível de radiância.

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APA

Silva, F. G., Pinto, J. E. B. P., Cardoso, M. das G., Nascimento, E. A., Nelson, D. L., Sales, J. de F., & Mol, D. J. de S. (2006). Influence of radiation level on plant growth, yield and quality of essential oil in carqueja. Ciência e Agrotecnologia, 30(1), 52–57. https://doi.org/10.1590/s1413-70542006000100007

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