Diversification of greenhouse crop production under supplemental lighting by the use of new cultures with high economic potential
2002
Léonhart, S. | Pedneault, K. | Gosselin, A. | Angers, P. | Papadopoulos, A.P. | Dorais, M.
The production potential of medicinal herbs in hydroponic system under supplemental lighting in a commercial greenhouse located at Mirabel, Quebec, Canada (Hydroserre Mirabel; lat. 45°42’ long. 73°58’) were studied in regard to their growth characteristics, yield and bio-active compounds. Ten species were selected for their economic value and bio-active properties; Achillea millefolium (yarrow), Artemisia vulgaris (mugwort), Borago officinalis (borage), Calendula officinalis (marygold), Hypericum perforatum (st John’s wort), Inula helenium (elecampane), Stellaria media (chickweed), Tanacetum parthenium (feverfew), Taraxacum officinale (dandelion) and, Valeriana officinalis (valerian). Dry matter accumulation, yield and product quality have been determined at different growing stages for each species. Characterization of plant growth and development showed that several species such as Tanacetum parthenium, Achillea millefolium, Taraxacum officinale and Calendula officinalis were well adapted to greenhouse hydroponic growing condition and provide a high quality product per square meter in a short time period.
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