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Spieß, Hartmut; Jahn, Marga; Koch, Eckard; Lorenz, Norbert; Müller, Karl-Josef; Vogt-Kaute, Werner; Waldow, Franziska; Wächter, Rebecca; Wilbois, Klaus-Peter. |
With the aim to evaluate the effectiveness of techniques and measures for control of cereal bunts and smuts in organic farming systems, field trials were carried out in multiple locations from 2004 to 2006. The relevant fungal diseases included in the trials were common bunt (Tilletia tritici), dwarf bunt (T. controversa), loose smut (Usti-lago tritici, U. nuda), covered smut (U. hordei) and black loose smut (U. avenae). The following treatments were found to be effective. Common bunt: different physical methods, Tillecur, acetic acid. Loose smut of barley and wheat: warm and hot water treatment, seed treatment with ethanol (more trials needed). Covered smut of barley: warm water treatment, ethanol, Lebermooser. Loose smut of oats: hot water treat-ment,... |
Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
Ano: 2007 |
URL: http://orgprints.org/9495/1/9495_Spie%C3%9F_Vortrag.pdf |
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Saucke, Helmut; Brede, Uwe; Rama, Franco; Kratt, Armin; Lorenz, Norbert; Zimmermann, Olaf. |
Aufgrund der in den letzten Jahren in Deutschland stetigen gestiegenen Anbaufläche für Körnererbsen ist das Schadpotential einiger Leguminosenschädlinge, insbesondere des Erbsenwicklers (Cydia nigricana (Lep.: Tortricidae))deutlich gestiegen. In der ökologischen Vermehrung von Körnererbsensaatgut beeinträchtigt erhöhter Wicklerbefall die Keimfähigkeit, Triebkraft und auch die Saatgutreinheit durch sich festsetzenden Unkrautsamen in angefressenen Saaterbsen. Dies kann zur Abstufung ganzer Saatgutpartien führen. Weiterhin treten in den letzten Jahren Probleme im Vertragsanbau von Öko-Gemüseerbsen für die Tiefkühlbranche auf. Dort droht bereits mit der Überschreitung von 0,05% C. nigricana-geschädigter Erbsen die Aberkennung und damit Totalausfall für die... |
Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds. |
Ano: 2003 |
URL: http://orgprints.org/1072/1/saucke%2D2003%2Dregulierung%2Derbsenwickler.pdf |
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Lorenz, Norbert; Klause, Stefan; Spieß, Hartmut. |
Because of the interdiction of chemical seed treatment, smut resistance is a main demand for cultivation of winter barley in organic farming. A comparison of common high yielding varieties with those chosen particularly with regard to good smut-resistance or tolerance showed no significant differences in field performance under the conditions of organic farming. Main criteria were the yield of grain and the content of protein and most important amino acids for animal nutrition (Cystine, Lysine, Me-thionine, Threonine, Tryptophan). Besides this the degree of shading weeds was estimated by means of measuring leaf areas and lengths of stalks. The leaf area proved to be the main factor. The availability of smut resistant or tolerant varieties out of organic... |
Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation. |
Ano: 2007 |
URL: http://orgprints.org/9466/1/9466_Lorenz_Vortrag.pdf |
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