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| Butz, Andreas F.; Finckh, Maria R.. |
| Resistance of tomato fruits to Phytophthora infestans Late blight, caused by Phytophthora infestans (Mont) de Bary, is one of the important diseases in organic potato and tomato production. While some information on foliar disease resistance of tomatoes is available, virtually no information exists on the relation of leaf to fruit resistance. The central parameters of the infection chain, incubation and latency period were determined for 40 tomato varieties using three isolates of P. infestans. A total of 2858 fruits were drop inoculated in the lab and assessed daily for symptoms or sporulation for 16 days. There were significant variety by isolate interactions for incubation period, latency period and the interim time suggesting race specific... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Vegetables. |
| Ano: 2009 |
URL: http://orgprints.org/14341/1/Butz_14341.pdf |
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| Paeßens, Benedikt; Urbatzka, Peer; Salzeder, Georg; Butz, Andreas F.. |
| Über eine Symbiose mit Knöllchenbakterien sind Sojabohnen und Erbsen dazu in der Lage Stickstoff aus der Luft zu fixieren. Zur Höhe der N2-Fixierungsleistung gibt es bereits einige Untersuchungen, für Sojabohnen vorwiegend aus Übersee. Allerdings ist die N2-Fixierungsleistung von vielen Faktoren abhängig, wie z. B. Temperatur, Niederschlagsmenge und –verteilung, Sorte, Bakterienstamm, Nährstoffversorgung, Krankheits- und Schädlingsdruck. Daher war es ein Ziel des Projektes „Optimierung des Anbaus von Sojabohnen – Bestimmung des Vorfruchtwertes und der N2-Fixierungsleistung sowie Reduzierung der Bodenbearbeitung“, das von der Bundesanstalt für Landwirtschaft und Ernährung gefördert wurde, die N2-Fixierungsleistung unter den Bedingungen Süddeutschlands bei... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds. |
| Ano: 2019 |
URL: http://orgprints.org/36171/1/Beitrag_244_final_a.pdf |
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| Butz, Andreas F.; Finckh, Maria R.. |
| There is virtually no information available on the relationship between the reaction of tomatoes to Phytophthora infestans on leaves and fruits. Late blight and brown rot of tomatoes were assessed in outdoor conditions in 2005 on 15 tomato varieties and in 2006 for 41 varieties. Leaf disease expressed as area under the disease progress curve (AUDPC) and the proportion of healthy fruit of the total fruit were used as meas-ures. In 2005, the two varieties that were most susceptible to leaf blight produced the least healthy fruit while the most resistant variety produced the highest proportion of healthy fruit. However, for the varieties with more intermediate reactions to leaf blight there was great variation in the proportion of healthy fruit with an... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2007 |
URL: http://orgprints.org/9529/1/9529_Butz_Vortrag.pdf |
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| Finckh, Maria R.; Saeed, M.F.; Butz, Andreas F.; Bruns, Christian. |
| Experiments were conducted to determine how tillage intensity, the use of biofumigation brassica cover crops and mixed cropping with oats affect the performance of organic peas with respect to weed pressure, diseases, and yield. Fields were either ploughed to a depth of about 15-20 cm or only to about 8 cm in late summer followed by either Sinapis alba (low glucosinolate (GSC) content), Raphanus sativus (medium GSC) or Brassica juncea (high GSC). Brassicas were mulched in fall right before flowering and incorporated in the top soil. In mixtures with oats seed rate for peas was as in pure stands, for oats it was 20 %. There was a dramatic spring drought in 2011 resulting in severe water stress for the peas in 2011. Weeds were significantly reduced by about... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Crop husbandry. |
| Ano: 2013 |
URL: http://orgprints.org/21416/1/21416_Finckh.pdf |
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