Environmental Effects on Yield and Composition of Essential Oil in Wild Populations of Spike Lavender ( Lavandula latifolia Medik.)

Montserrat Fernández-Sestelo and José M. Carrillo
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Montserrat Fernández-Sestelo: Plant Genetic Resources Center, Instituto Nacional Investigación y Tecnología Agraria y Alimentaria, Autovía de Aragón km 36.200, Finca La Canaleja INIA, 28800 Alcalá de Henares, Spain
José M. Carrillo: Department of Biotechnology and Plant Biology, School of Agricultural Engineering, Universidad Politécnica de Madrid, Avenida Puerta de Hierro 2, 28040 Madrid, Spain

Agriculture, 2020, vol. 10, issue 12, 1-18

Abstract: Spike lavender, Lavandula latifolia Medik., is a species of economic importance for its essential oil (EO). The purpose of this study was to estimate the effect of the variable climate and fixed factors such as soil and geographic location on EO yield and quality. The study material was collected in 34 populations from four different Spanish bioregions for three years. The EO extraction from spike lavender leaves and flowers was done with simple hydrodistillation, in Clevenger. Soil samples were also collected. Climate data were provided by the State Meteorological Agency. The EO average yield was obtained for the bioregion mean and in each bioregion. The higher EO yield is related clearly to the climate condition. A greater amount of annual rainfall produced a higher EO yield in the four bioregions and of better quality. Soils richer in organic matter and minerals produced higher EO yield but with less quality. The altitude had little effect on EO yield. Higher altitude favored obtaining higher EO quality. At lower latitude, further south, the populations obtained a higher EO yield. The evaluation of the environmental effect on the EO yield and quality could allow better natural conservation and more accurate selection of the best populations for breeding and spike lavender cultivation protocols.

Keywords: spike lavender; essential oil; 1,8-cineole; linalool; camphor; edaphic characteristics; altitude; latitude; longitude (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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