Vegetative development and production of essential oil of Patchouli under radiation levels and GA3 application

Authors

  • Rafaellen Caroline Storck Universidade Federal do Paraná
  • Cícero Deschamps Universidade Federal do Paraná
  • Lílian Cristina Côcco Universidade Federal do Paraná
  • Átila Francisco Mógor Universidade Federal do Paraná
  • Agnes de Paula Scheer Universidade Federal do Paraná
  • Carlos Itsuo Yamamoto Universidade Federal do Paraná

DOI:

https://doi.org/10.5433/1679-0359.2013v34n5p1999

Keywords:

Pogostemon cablin Benth, Gibberellic acid, Aromatic specie, Patchoulol.

Abstract

Pogostemon cablin Benth. has economical importance due to the essential oil which is used in the pharmaceutical and perfume industries. Among the environment factors, the radiation is extremely important for plant development and its limitation can result on decrease of yield. The application of gibberellins promotes the cellular elongation resulting on increase of plant height. Therefore, the radiation level and plant growth regulators can indirectly affect the essential oil production due its accumulation in the biomass. The objective of this work was to evaluate vegetative development and essential oil production of patchouli under shading and after GA3 application. The experimental design was completely randomized in a 2 x 3 factorial arrangement comparing shading levels (0, 54, and 77%) with or without GA3 application (200 mg.L-1). The GA3 was applied 30 days after planting. The plants showed a superior height under 77% of shading and with GA3 at 120 days after planting. The leaf number was superior on plants developed under no radiation limitation and after 75 days of GA3 application. The stem number also was significantly superior under no shading and without GA3. The application of the growth regulator at 75 days also promoted great stem number of branches with 54% of shading. However, treatment with GA3 increased essential oil yield and productivity and greater yield in P. Cablin under shading conditions. The growth regulator can be used to compensate the negative effect of lower radiation levels. This is of great interest for patchouli cultivation as the GA3 application allows to increase plant population and, consequently, biomass and essential oil production.

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Author Biographies

Rafaellen Caroline Storck, Universidade Federal do Paraná

Pesquisadora Drª. em Produção Vegetal pela Universidade Federal do Paraná, UFPR, Curitiba, PR.

Cícero Deschamps, Universidade Federal do Paraná

Prof. Dr. do Deptº de Fitotecnia, UFPR, Curitiba, PR.

Lílian Cristina Côcco, Universidade Federal do Paraná

Pesquisadora Drª. do Deptº de Engenharia Química, UFPR, Curitiba, PR.

Átila Francisco Mógor, Universidade Federal do Paraná

Prof. Dr. do Deptº de Fitotecnia, UFPR, Curitiba, PR.

Agnes de Paula Scheer, Universidade Federal do Paraná

Profª Drª do Deptº de Engenharia Química, UFPR, Curitiba, PR.

Carlos Itsuo Yamamoto, Universidade Federal do Paraná

Prof. Dr. do Deptº de Engenharia Química, UFPR, Curitiba, PR.

Published

2013-10-09

How to Cite

Storck, R. C., Deschamps, C., Côcco, L. C., Mógor, Átila F., Scheer, A. de P., & Yamamoto, C. I. (2013). Vegetative development and production of essential oil of Patchouli under radiation levels and GA3 application. Semina: Ciências Agrárias, 34(5), 1999–2006. https://doi.org/10.5433/1679-0359.2013v34n5p1999

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