ISHS Acta Horticulturae 390: Internat. Symposium on Medicinal and Aromatic Plants
PRODUCTION OF PANAX. SPP. IN NEW ZEALAND |
| Authors: | B.M. Smallfield, J.M. Follett, M.H. Douglas, J.A. Douglas, G.A. Parmenter |
| Keywords: | ginseng, Panax ginseng, Panax quinquefolium, environmental tolerance, photoinhibition |
| DOI: | 10.17660/ActaHortic.1995.390.10 |
| Abstract:
Ginseng is a new crop for New Zealand and is being grown outside its natural environmental range. Field trials aim to establish the environmental tolerance, adaptability and plant productivity of Panax ginseng and Panax quinquefolium in New Zealand. Under artificial shade plants have been growing successfully for up to four seasons, flowering and setting seed in the third season in a range of contrasting environments from temperate maritime to semi continental. Root growth of plants grown in a peat media were significantly heavier than those grown in a soil media. Outbreaks of Botrytis cinerea and Fusarium have caused deaths of seedlings and established plants. Irradiances of up to 15–20% of maximum midday irradiance in midsummer, appear to have little photoinhibitory effect on photosynthesis. P. quinquefolium seedlings also appear to show some degree of adaptation to relatively high light levels (45% of maximum midday mid summer irradiance). P. quinquefolium is also growing successfully under canopies of Pinus radiata on volcanic ash soil in the Central North Island. The production of ginseng in the southern hemisphere presents an opportunity for counter season production to the traditional northern hemisphere regions. | |
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