ISHS Acta Horticulturae 576: International Conference on Medicinal and Aromatic Plants. Possibilities and Limitations of Medicinal and Aromatic Plant Production in the 21st Century
COMPARATIVE STUDY ON THREE HYPERICUM SPECIES GROWING WILD IN POLAND |
| Authors: | E. Osinska, Z. Weglarz |
| Keywords: | Hypericum perforatum, H. maculatum, H. elegans, herb mass, hypericins, flavonoids, time of harvest |
| DOI: | 10.17660/ActaHortic.2002.576.5 |
| Abstract:
The developmental and chemical differences between H. perforatum, H. maculatum and H. elegans originating in the south of Poland (Kraków district) were investigated. The research was done in one- and two-year-old plantations, respectively, with plants harvested at four stages of development (vegetative phase, before blooming, beginning of blooming and at full blooming). The mass of raw material and the content of flavonoids and hypericins were determined for each harvest. The yield of herb and the content of active compounds were highest in H. elegans. Taking into consideration the mass of herb and the content of investigated compounds, the optimal time for harvest appeared to be the full blooming stage, especially in the second year of vegetation. | |
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