Essential oils in the needles of Scots pine (Pinus sylvestris L.)

@inproceedings{Sporek2014EssentialOI,
  title={Essential oils in the needles of Scots pine (Pinus sylvestris L.)},
  author={M. Sporek},
  year={2014}
}
The aim of the study was to determine the content of essential oils in pine needles in 3 canopy zones (lower, middle and upper) of model trees, for 3 youngest needle cohorts (1, 2 and 3 years old). The research revealed a clear increase in the content of essential oils from the lower through the middle to the upper part of the crown. The lowest oil content was found in 3-year-old needles (0.40%), while 1-year and 2-year old needles contained 0.48 and 0.49% of oil, respectively. 

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