Cropping evaluation of white horehound (Marrubium vulgare L.), grown from sowing and seeding



The studies were conducted in the years 2004–2008. The available Polish and foreign literature does not devote much attention to the problem of growing white horehound. The cropping of white horehound grown from sowing and seedling was assessed in the experiment, depending on the term when the plantation was established, harvest date and age of the plants. Air dry herb was analyzed in the laboratory, where the essential oil content was determined. On the basis of the studies, it was revealed that seed sowing date and herb harvest term affect white horehound plant cropping. Differences were also found in cropping between plants from one-year and two-year plantation.
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