Journal of Agricultural Science; Vol. 13, No. 8; 2021 ISSN 1916-9752 E-ISSN 1916-9760 Published by Canadian Center of Science and Education Essential Oil Variation in Brazilian Varronia curassavica Jacq. in Response to Drying and Edaphoclimatic Conditions Teomar Duarte da Silva1, Michele Trombin de Souza2, Mireli Trombin de Souza2, Roger Raupp Cipriano2, Humberto Ribeiro Bizzo3 & Cicero Deschamps2 1 Department of Agronomy, Catarinense Federal Institute, Araquari, Brazil 2 Graduate Program in Agronomy-Plant Production, Federal University of Parana, Curitiba, Brazil 3 Embrapa Food Technology, Rio de Janeiro, Brazil Correspondence: Teomar Duarte da Silva, Catarinense Federal Institute, Araquari, Santa Catarina, Highway BR 280, km 27, Brazil. Tel: 55-(41)-3350-5687. E-mail:
[email protected] Received: May 18, 2021 Accepted: June 25, 2021 Online Published: July 15, 2021 doi:10.5539/jas.v13n8p16 URL: https://doi.org/10.5539/jas.v13n8p16 Abstract Varronia curassavica Jacq. (Boraginaceae) is a native species of the Atlantic Forest with medical importance. This study determined the essential oil variation of 16 populations of V. curassavica of restinga in Santa Catarina, Brazil, in response to drying and edaphoclimatic conditions. The populations supplied essential oil with a content between 0.27 to 1.15% in the summer and from 0.33 to 1.12% in the winter. 41 chemical compounds were identified in the summer and 40 in the winter. The compounds were grouped into 4 chemical classes in each station studied. The common chemical constituents found in the essential oil of all populations and in both seasons were α-thujene, α-pinene, sabinene, α-humulene, (E)-cariophylene, spatulenol, mircene, allo-aromadendrene, β-sesquifelandreno and α-zingiberene.