Tadesse, Mekuria and Neuhoff, Daniel (2005) POTENTIAL OF EXTRACTS OF SOME ETHIOPIAN MEDICINAL PLANTS FOR LATE BLIGHT CONTROL IN ORGANIC POTATOES. Poster at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]
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Summary
The potential of ethanolic extracts of some common medicinal plants of Ethiopia for control of late blight (Phytophthora infestans) in tomatoes and potatoes has been investigated in vitro and in vivo. The application of several ethanolic plant extracts resulted in a significant inhibition of mycelium growth (0.25% m/v) and an impairment of late blight disease severity in vivo (1% m/v). Extracts from Hagenia abyssinica, Lepidium sativum and Lippia adoensis showed the strongest suppression of mycelium growth. The application of extracts derived from the H. abyssinica gave the highest in vivo bioactivity against P. infestans on tomatoes, but no effect was noted in potatoes under field conditions. The general potential of these extracts for late blight control has been proved, while a practical application in organic crop production still requires further research.
| EPrint Type: | Conference paper, poster, etc. |
|---|---|
| Type of presentation: | Poster |
| Keywords: | ethanolic plant extracts, late blight control, organic potatoes and tomatoes |
| Subjects: | Crop husbandry > Crop health, quality, protection |
| Research affiliation: | International Conferences > 2005: 1st ISOFAR Conference > 2005: 1st ISOFAR Conference |
| Related Links: | http://orgprints.org/4013/, http://www.isofar.org/adelaide2005, http://orgprints.org/view/projects/int-conf-isofar-2005.html |
| Deposited By: | ISOFAR |
| ID Code: | 4419 |
| Deposited On: | 15 Nov 2005 |
| Last Modified: | 12 Apr 2010 07:30 |
| Document Language: | English |
| Status: | Unpublished |
| Refereed: | Peer-reviewed and accepted |
| Additional Publishing Information: | The paper presented here is the final paper submitted by the authors to the conference Researching Sustainable Systems. The final edited papers are available with the following publication: Köpke, Ulrich; Niggli, Urs; Neuhoff, Daniel; Cornish, Peter; Lockeretz, Willie und Willer, Helga, (Hrsg.) (2005) Researching Sustainable Systems. Proceedings of the First Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), Held in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the National Association for Sustainable Agriculture, Australia (NASAA), 21 – 23 September 2005, Adelaide Convention Centre, Adelaide, South Australia.. Research Institute of Organic Agriculture FiBL, CH-Frick, and International Society of Organic Agriculture Research (ISOFAR), c/o Institute of Organic Agriculture (IOL), DE-University of Bonn. http://orgprints.org/4013/ Distribution: Paper copies may be ordered from FiBL at a cost of 28 Euros plus mailing costs (see FiBL shop at http://www.fibl.org/shop); FiBL order number 1394. A PDF version is available free of charge for ISOFAR members via the member area of www.isofar.org. |
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