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Entwicklung einer Methode zum Wirkungsnachweis resistenzinduzierender Präparate (Pflanzenstärkungsmittel)


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Marx, Peggy; Kühne, Stefan; Jahn, Marga and Makulla, Alexandra (2011) Entwicklung einer Methode zum Wirkungsnachweis resistenzinduzierender Präparate (Pflanzenstärkungsmittel). Paper at: 11. Wissenschaftstagung Ökologischer Landbau, Gießen, 16.-18. März 2011.

PDF - German/Deutsch


A method for testing the efficacy of products which improve the resistance of plants was developed in the Julius Kühn-Institute. The susceptible radish (Raphanus sativus) cultivar ´Saxa 3` was infected with Peronospora parasitica isolated in the field. Different plant resistance improvers (PRI) like plant or algal extracts were tested compared to aqua dest. as control and ß-aminobutyric acid (BABA) as a standard. PRI were sprayed twice on intact plants (BBCH 10: Cotyledons completely unfolded; growing point or true leaf initial visible). 24 h, 48 h or 72 h after the last application with PRI, the plants were inoculated with P. parasitica. 10 to 14 days after inoculation, the concentration of spore suspension from cotyledons was determined. The efficacy of all tested products was shown. Optimum time lags between two PRI applications as well as last application and inoculation were defined. This method is useful as a standard method in the lab to test the efficacy of products for improving the resistance of plants.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:induced resistance, plant strengthening products, induzierte Resistenz, Pflanzenstärkungsmittel
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2011: Scientific Conference on Organic Agriculture > Pflanze und Boden > Pflanzenschutz
Related Links:http://www.wissenschaftstagung.de/, http://www.verlag-koester.de/buch.php?id=735&suche=11.%20wissenschaftstagung&fb_id=s
Deposited By: Marx, Dr. Peggy
ID Code:17342
Deposited On:17 Jun 2011 14:09
Last Modified:17 Jun 2011 14:09
Document Language:German/Deutsch
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsbandes der 11. Wissenschaftstagung erschienen.
Leithold, G.; Becker, K.; Brock, C.; Fischinger, S.; Spiegel, A.-K.; Spory, K.; Wilbois, K.-P. und Williges, U. (Hrsg.) (2011):
Es geht ums Ganze: Forschen im Dialog von Wissenschaft und Praxis
Beiträge zur 11. Wissenschaftstagung Ökologischer Landbau, Justus-Liebig-Universität Gießen, 15.-18. März 2011
Band 1: Boden, Pflanze, Umwelt, Lebensmittel und Produktqualität
Band 2: Tierproduktion, Sozioökonomie
Verlag Dr. Köster, Berlin.
Der Tagungsband kann über den Verlag Dr. Köster bezogen werden; siehe: http://verlag-koester.de/buch.php?id=735&fb_id=37

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