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| Nega, Eva; Ulrich, Roswitha; Werner, Sigrid; Jahn, Marga. |
| In future, conventionally produced seed will not be allowed for organic farming. Therefore, effective non-chemical methods are needed to control seed-borne diseases. Five important vegetable crops (carrot, cabbage, celery, parsley, lamb´s lettuce) and their most important seed-borne pathogens (Alternaria spp., Phoma spp., Septoria spp., Peronospora valerianellae, Xanthomonas spp.) have been investigated in laboratory, model and field trials. Hot water treatments were made at temperatures of 40 °C and 50 to 55 °C for 10 to 30 minutes, in some cases to 60 minutes. In most cases, seed health tests were conducted according to ISTA guidelines. In case of seed infestation with Septoria species and P. valerianellae, the number of spores or oospores were counted... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2003 |
URL: http://orgprints.org/7672/1/Nega%2D2003%2Dhot%2Dwater%2Dtreatment.doc |
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| Jahn, Marga; Nega, Eva; Kromphardt, Carola; Forsberg, Gustav; Werner, Sigrid. |
| In the last decade, a lot of work has been done to develop new measures or to optimise existing seed treatment methods for use in organic farming. In the field of vegetable seed protection, national research projects as well as the EU-funded project “STOVE” (“Seed Treatments for Organic Vegetable Produc-tion”) are currently carried out. Among the physical methods, hot water, humid hot air and electron treatment are being investigated. All three physical treatment methods show clear reduc-ing effects on pathogens of infested vegetable seeds. Degree of effectiveness connected with a good com-patibility depends on the treatment method and on the host-pathogen-system, but also on the cultivar and even on the seed lot. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
URL: http://orgprints.org/8314/1/OdenseJahn_et_al.doc |
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