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| Registros recuperados: 808 | |
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| Jones, Hannah. |
| This research review notes that cereal variety breeding in the last 50 years has been based on pedigree line bred varieties as part of the development of a production system dependent on oil-based inputs. The characteristics desirable for an organic system are frequently at odds with those designed for non-organic systems. Despite this, varietal choice for organic farmers remains largely from the pool of varieties developed for non-organic production. The challenges to address are on what basis can farmers and advisers select varieties, and how to develop varieties suitable for organic production. Plant characteristics are discussed and main desirable features outlined under the headings of: • Nutrient use efficiency • Disease resistance • Weed... |
| Tipo: Report |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation. |
| Ano: 2008 |
URL: http://orgprints.org/13555/1/Res_review_12_jones.pdf |
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| Des semences ou des plants vigoureux et sains d'une variété de qualité sont le meilleur garant de départ pour la réussite d'une culture respectueuse de l'environnement.L'Office Fédéral de l'Agriculture (OFAG) est chargé de la mise à jour et de l'exécution de l'Ordonnance sur la production et la mise en circulation du matériel végétal de multiplication, tâche confiée à son Service des semences et plants (SSP), dont le service Certification Semences et Plants de la RAC (CSP) est un des constituants.Pour la certification des plants de pommes de terre, le service CSP est centre de compétence pour toute la Suisse. Pour la certification des semences, le service CSP fonctionne comme antenne régionale de la FAL. Afin de stimuler la création variétale, la Suisse... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
URL: http://orgprints.org/5062/1/Miauton%2D2005%2DCertification.pdf |
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| Hobert, M.; Kopahnke, D.; Ordon, F.. |
| Die Resistenzzüchtung gegenüber Weizenflugbrand (Ustilago tritici) hat in den letzten Jahren aufgrund der Ausdehnung des ökologischen Landbaus, der eine Bekämpfung mittels chemischer Saatgutbeizung nicht zulässt, zunehmend an Bedeutung gewonnen. Ziel eines im Rahmen des „Bundesprogramm Ökologischer Landbau“ geförderten Projektes war es daher, Resistenzen im deutschen Weizensortiment, als Basis für eine direkte Nutzung dieser Sorten im ökologischen Anbau bzw. als Ausgangspunkt für eine gezielte Resistenzzüchtung, zu identifizieren. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation. |
| Ano: 2008 |
URL: http://orgprints.org/15296/1/hobert%2Detal%2D2008%2D56Pflanzenschutztagung2008_Weizenflugbrand.pdf |
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| Wächter, Dr. Rebecca; Wolf, Dr. Gerhard; Koch, Dr. Eckhard. |
| Attack with common bunt (Tilletia caries) is a potential threat to wheat production in organic farming. The situation may even become worse if (in agreement with EU-legislation) only organically produced seed is used in organic farming. The targeted use of resistant varieties could be a way to alleviate the problem. However, knowledge regarding bunt resistance of wheat varieties on the one hand and aggressiveness in populations of the bunt pathogen on the other hand is still insufficient. In the frame of a federal research programme for organic farming (BÖL),30 winter wheat varieties and breeding lines were studied at five different locations using spores of local origin in order to assess the natural level of resistance (WÄCHTER et al. 2004). In addition,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2004 |
URL: http://orgprints.org/3539/1/3539.pdf |
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| Mazollier, Catherine; Taulet, Annick; Lambion, Jérôme. |
| Dans le Sud de la France, la culture du chou rave est essentiellement pratiquée en agriculture biologique ; les maraîchers bio disposent donc de peu de référence sur les techniques culturales (problème récurrent d’hétérogénéité à la récolte) et le choix des variétés adaptées aux conditions spécifiques de culture sous abris en Provence. De plus, l’utilisation obligatoire de semences biologiques ou à défaut non traitées limite le choix variétal. Cet essai permet de poursuivre l’étude des variétés et techniques, débutée en 2004 au GRAB : nous avions obtenu de bons résultats en terme de croissance équilibrée et d’homogénéité avec 3 variétés : Olivia surtout (Vitalis, semences biologiques), et dans une moindre mesure Eder et Spree (Rijk Zwaan, semences non... |
| Tipo: Report |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2006 |
URL: http://orgprints.org/8756/1/vari%C3%A9t%C3%A9s_CHOU_RAVE.pdf |
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| Ingvordsen, Cathrine Heinz. |
| Climate Change Effects on Plant Ecosystems – Genetic Resources for Future Barley Breeding. A growing population and a considerable increase in living standards worldwide are increasing the demand on the primary production. At the same time, climate change is projected to lower the primary production due to increases in the atmospheric concentrations of carbon dioxide ([CO2]) and ozone ([O3]), rising temperatures and extreme climate events such as floods, storms and heatwaves. These predictions are compounded by the projections from the Intergovernmental Panel on Climate Change, which state that the world is heading towards a worst-case climate scenario unless actions are taken collectively in the very near future. Crop yields have stagnated since the start... |
| Tipo: Thesis |
Palavras-chave: Food security; Food quality and human health Cereals; Pulses and oilseeds Air and water emissions Breeding; Genetics and propagation. |
| Ano: 2014 |
URL: http://orgprints.org/28033/7/28033.pdf |
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| Pedersen, T.M.; Döring, T.F.; Baresel, P.; Borgen, A.; Finckh, M.R.; Howlett, S.A.; Ortolani, L.; Pearce, B.D.; Wolfe, M.S.. |
| Development of organic plant breeding and seed production will have a valuable impact on organic plant production. Breeding of plant material adapted for organic agriculture is crucial in order to cope with stresses such as climate change, weeds and seed borne diseases. Conventional varieties may not meet the specific needs of organic agriculture. The use of plant material adapted to conditions of organic agriculture will have a positive effect on the productivity and sustainability of organic crop production. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2013 |
URL: http://orgprints.org/24581/1/24581.pdf |
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| Schneider, Monika; Perez, Eucebio; Alcon, Freddy; Choque, Romero; Trujillo, German; Andres, Christian. |
| One of the most essential limiting factors of cocoa (Theobroma cacao L.) productivity worldwide is pests and diseases. Each of the major production regions has its specific pests and diseases. Reported yield losses range from minor to almost 100 per cent. In Alto Beni, located in the Amazonian watershed of the department La Paz, Bolivia, the Research Institute of Organic Agriculture (FiBL) and its local partners are addressing several problems of cocoa producers using a participatory technology development approach. Problems were identified in a participatory way and are, in order of priority, i) to reduce the incidence of pests and diseases, mainly the cocoa mirid (Monalonion dissimulatum) and Frosty Pod Rot (Moniliophthora roreri); ii) to evaluate the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research Technology transfer Breeding; Genetics and propagation. |
| Ano: 2014 |
URL: http://orgprints.org/27524/1/PosterSyscom_Cocoa_def.pdf |
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| Andres, Christian; Perez, Eucebio; Alcon, Freddy; Choque, Romero; Trujillo, German; Milz, Joachim; Schneider, Monika. |
| Cocoa (Theobroma cacao L.) trees have a lifespan of up to 100 years in their natural environment, the lower strata of tropical alluvial forests. Sustainability of global cocoa production is at stake due to the deterioration of soil fertility, high losses due to pests and diseases (P&D) and old tree stock. Producing cocoa in shaded, low input agroforestry systems offers a potential solution for achieving long-term productivity and sustainability. However, shade-tolerant cocoa clones are needed which are productive and resistant to P&D, as well as meeting the quality standards requested by the industry. In Bolivia, the cocoa mirid (Monalonion dissimulatum) and the novel disease Frosty Pod Rot (“Monilia” Moniliophthora roreri) are among the most... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Systems research and participatory research Technology transfer Breeding; Genetics and propagation. |
| Ano: 2014 |
URL: http://orgprints.org/27518/1/Andres_et%20al%20Tropentag%202014.pdf |
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| Steffan, Philipp; Borgen, Anders; Backes, Gunter; Rasmussen, Søren K.. |
| Utilising diverse populations instead of single line varieties is expected to lead to a number of advantages in cereal production. These include reduced epidemics of plant diseases, improved weed competition and better exploitation of soil nutrients, resulting in improved yield stability. However, a number of challenges must be met before diverse wheat populations can be introduced into commercial wheat production: one of these is the development of breeding technologies based on mass selection which enable breeders and farmers to improve specific traits in populations and maintain diversity at the same time. BIOBREED is a project started in Denmark in 2011 to meet these challenges for wheat population breeding. The project is focusing on the development... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2013 |
URL: http://orgprints.org/34193/3/Abstract_Biobreed_Birmingham_2013_34193.pdf |
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| Registros recuperados: 808 | |
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