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Effect of Climatic Factors on Essential Oil Accumulation in Two Lamiaceae Species from Algerian Semiarid Lands

  • Souad MehalaineEmail author
  • Haroun Chenchouni
Conference paper
  • 145 Downloads
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

Plant metabolism is vastly influenced by climatic factors in terms of quantity and quality. In this regard, the objective of this study was to assess the impact of some climatic factors on the amount of essential oils (EOs) in two plant species growing spontaneously in an Algerian semiarid zone: Thymus algeriensis Boiss & Reut. and Rosmarinus officinalis L. for five successive years (2010–2014). Essential oils were extracted from plant aerial parts by hydrodistillation using Clevenger type system and the oil yield rates were estimated in relation to the dry matter of the plants. The obtained results showed significant differences in EO yields during the five years, among the species and the interaction ‘Year × Species’ (P < 0.001). R. officinalis accumulated the best oil content during 2010, 2012 and 2013 with 1, 0.93 and 0.88% respectively. T. algeriensis yielded higher EOs in 2013 followed by 2012 and 2011 with 1.08, 0.67 and 0.59% respectively. Furthermore, R. officinalis produced higher EO amount than T. algeriensis. Oils accumulation increased significantly with the increase of precipitation, wind speed and hygrometry but was negatively influenced by air humidity and aridity in both species.

Keywords

Rosmarinus officinalis Thymus algeriensis Essential oils Climate effects 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Natural and Life Sciences, Faculty of Exact Sciences and Natural and Life SciencesUniversity of TebessaTebessaAlgeria
  2. 2.Laboratory of Natural Resources and Management of Sensitive Environments ‘RNAMS’University of Oum-El-BouaghiOum-El-BouaghiAlgeria

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