FIELD: agriculture.
SUBSTANCE: invention relates to the field of agriculture and food industry, as well as aromatherapy. In the method the volume of fraction of volatile compounds of ethereal oil of mint leaves is determined in a period of technical ripeness. The volume of fraction is calculated from the difference between the amount of ethereal oil of secretory glands, obtained based on the number and size of the glands per unit of area of mint plant leaves using light microscope with a video system Lumenera Infinity 2 followed by data processing using the program Infinity camera V:5.02, and the volume of ethereal oil obtained by the method of hydrodistillation.
EFFECT: method enables to determine quickly the content of fraction of volatile compounds in the ethereal oil and carry out the selection of breeding material.
3 cl, 2 tbl, 2 ex
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