Montag, Jurith; Schreiber, Lukas and Schönherr, Jörg (2006) Die postinfektionelle Wirkung von Calciumhydroxid auf Konidien von Venturia inaequalis. [The post-infection activity of hydrated lime against conidia of Venturia inaequalis.] In: Boos, Markus (Ed.) ecofruit - 12th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing: Proceedings to the Conference from 31st January to 2nd February 2006 at Weinsberg/Germany, Fördergemeinschaft Ökologischer Obstbau e.V. (FÖKO), Traubenplatz 5, D-74189 Weinsberg, pp. 77-80.
The post-infection activity of hydrated lime against conidia of Venturia inaequalis was evaluated using an in vitro test system based on isolated apple leaf cuticles. Experiments were conducted at 20°C and treatments were applied 24 or 48 h after inoculation. Experiments were assessed by counting living primary stromata 72 h after inoculation using fluorescence microscopy and fluorescein diacetate (FDA) as a vital stain. At the conditions of the in vitro test system hydrated lime had a post-infection activity. Suspension of 5 g l-1 applied 24 h after inoculation (16 h after infection) killed all primary stromata and stopped their further development. Treatments 48 h after inoculation reduced the number of vital primary stromata to 60% of control. Treatments with saturated solutions of hydrated lime (pH 12.45) and with KOH solutions of different pH showed that a pH higher than 12.4 was needed to be 100% effective. Suspensions of calcium carbonate (6.75 g l-1) had no effect.
|EPrint Type:||Conference paper, poster, etc.|
|Type of presentation:||Paper|
|Keywords:||Venturia inaequalis , Calciumhydroxid, Konidien, postinfektionelle Wirkung, Apfelschorf, Apfel|
|Subjects:|| Crop husbandry > Crop health, quality, protection|
Crop husbandry > Production systems > Fruit and berries
|Research affiliation:||Germany > Fördergemeinschaft Ökologischer Obstbau - FÖKO|
|Deposited By:||Boos, Markus|
|Deposited On:||11 Jul 2006|
|Last Modified:||12 Apr 2010 07:33|
|Document Language:||German - Deutsch|
|Refereed:||Peer-reviewed and accepted|
|Additional Publishing Information:||The proceedings are available as paperback at Fördergemeinschaft Ökologischer Obstbau e.V. (FÖKO), Traubenplatz 5, D-74189 Weinsberg, www.foeko.de|
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