ISHS Acta Horticulturae 955: I International Symposium on Medicinal, Aromatic and Nutraceutical Plants from Mountainous Areas (MAP-Mountain 2011)
QUANTITATIVE AND QUALITATIVE PERFORMANCE OF TWO GOLDEN ROOT (RHODIOLA ROSEA) ACCESSIONS GROWN AT DIFFERENT ALTITUDE IN NORTHERN ITALY |
| Authors: | F. Scartezzini, N. Aiello , C. Vender, F. Cangi, S. Mercati , S. Fulceri |
| Keywords: | morphological characteristics, yield, rosavin content, salidroside content, harvest dates |
| DOI: | 10.17660/ActaHortic.2012.955.23 |
| Abstract:
Rhodiola rosea (golden root) roots and rhizomes are rich in phenylpropanoids (rosavin, rosin, rosarin) and in phenylethanoids (salidroside and tyrosol), active compounds endowed with adaptogen properties, and for this reason they have been used since a long time for medicinal purposes. Golden root grows in many places of the Alpine range and in 2004 numerous seedlings were obtained from seed of two accessions, one collected in the Eastern Alps of Trento province and the other one got by the Botanic Garden “Paradisia” of Cogne, Val d’Aosta. In May 2005, these plantlets were transplanted (8 plants/m2) in two fields situated in the surroundings of Trento at different altitudes (Bondone 1,570 m a.s.l. and Frisanchi at 1,078 m a.s.l.). Five years later (2010), a sample of five plants/accession was harvested both in the spring (full bloom) and at fall time (end September/October). For both harvests, fresh and dry weights of the single plants were recorded and their quality was determined by HPLC. For the spring harvest only, the number of stems per plant, their height and their dried weight (d.w.) were recorded too. At both harvests the higher dried yield was achieved in the field situated at higher altitude where at fall time roots d.w. ranged about 168 g/plant and 1236 g/m2. The average content in active compounds ranged from 0.83 to 1.1% for salidrosides and was around 1% for rosavins in both locations and harvests. | |
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