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| Registros recuperados: 789 | |
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| Brühl, Katharina. |
| The EU legislation on organic farming was aimed at forcing the use of organic seeds in organic production. However, there are striking differences in its implementation across the EU and the use of organic seeds is still sparse. This study examines the use of organic seeds for sweet pepper (Capsicum annuum L.) production in a pilot study for the Netherlands and Spain. In order to identify existing incentives and constraints, a supply chain analysis is applied, derogation requests for using non-organic seeds are analysed and interviews with stakeholders of the supply chain are conducted. Based on the findings, recommendations are given on how each stakeholder can participate in improving the implementation of the EU law, promoting the use of organic seeds. |
| Tipo: Thesis |
Palavras-chave: Breeding; Genetics and propagation Netherlands Spain Regulation. |
| Ano: 2017 |
URL: http://orgprints.org/33218/1/Master%27s%20Thesis%20Katharina%20Bruehl%20%281%29.pdf |
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| Rosenfeld, Simon; Voegele, Ralf T.; Messmer, Monika; Finckh, Maria R.; Szuszkiewicz, Roderick; Oberhänsli, Thomas; Hohmann, Pierre. |
| White lupin (Lupinus albus L.) is a promising leguminous crop. Europe is fully dependent on protein and nitrogen fertilizer imports. This has tremendous negative effects both in Europe and the producing countries, such as loss of terrestrial biodiversity, pollution of freshwater, increase of greenhouse gases and soil acidification. Diverse crop-rotations with a substantial amount of pulses are a proven solution. The protein composition and yield potential of white lupin suggest that it could become the ‘Soy of the North’. Currently, the seed-borne pathogen Colletotrichum lupini is substantially impeding the cultivation of white lupin in Central Europe. We developed a DNA-based diagnostic test to identify and quantify the fungal pathogen in plants and... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2017 |
URL: http://orgprints.org/32276/1/Poster_Simon_Rosenfeld_Final_ohne_schnittmarken_web_version.pdf |
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| Müller, Karl-Josef. |
| Bei dem Beitrag handelt es sich um ein Grundlagenpapier zur Richtlinienentwicklung für eine ökologische Pflanzenzüchtung, das im Rahmen eines internationalen Workshops in Driebergen/NL am 17./18. Oktober 2001 erarbeitet wurde und anschließend dem IFOAM-Standards-Komitee und dem niederländischen Landwirtschaftsministerium vorgelegt wurde. An dem Workshop waren in erster Linie Vertreter des ökologischen Landbaus, aber auch Vertreter konventioneller Züchtungsunternehmen und Züchtungsforscher beteiligt. Folgende Kriterien werden in dem Beitrag behandelt: 1. Ökologische Züchtungsprinzipien, die an den Prinzipien einer ökologischen Landwirtschaft ausgerichtet sind, 2. Kontroll- und Nachweisfähigkeit, 3. Praktikabilität. Darüber hinaus werden verschiedene... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Values; Standards and certification Technology assessment. |
| Ano: 2002 |
URL: http://orgprints.org/670/1/lit_baz_oekosorten_stand_01.htm |
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| State of the Art: World-wide there is very little cultivar testing of pipfruit under the conditions of organic farming. No rare there appropriate breeding programs on-going. Thus, knowledge is very scare. Definition of the problem: Pipfruit as apple and pears are difficult to produce organically. A key disease is scab (Venturia sp.); but also susceptibility to leaf spot disease, monilia, sooty blotch disease, aphids, insects, biennial bearing, cracking etc. are major problems to overcome with organically approved methods and products. Additionally, also organic pipfruit have to achieve the high and significantly increased expectations in terms of outer and inner quality. Project aims: To find apple and pear cultivars suited for organic... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Finckh, Maria R.; Baresel, Jörg Peter; Weedon, Odette D.; Vijaya Bhaskar, A.V.. |
| Eine wichtige Anpassung an den ökologischen Anbau ist eine zügige Frühentwicklung und ein Wurzelsystem, das an organische Düngung angepasst ist. Eine Halbdiallelkreuzung aus insgesamt 20 europäischen Winterweizensorten wurde 2001 hergestellt und insgesamt drei Subpopulationen aus neun Hochertragseltern (CY), eine mit 12 Backqualitätseltern (CQ) und eine aus allen Eltern (CYQ) zusammengestellt. Seit der F5 wird Saatgut unter konventionellen und ökologischen Anbaubedingungen in jeweils zwei parallelen Populationen getrennt nachgebaut. Saat jeder Generation wird bei -20o C aufbewahrt. Für die Versuche wurden Generationen F6, F10, F11, F15 in einem Feld zu F6.1, F10.1, F11.1, F15.1 vermehrt. Frisches Saatgut wurde im Hydrokultursystem zwei Wochen bei 18/12 oC... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2019 |
URL: http://orgprints.org/36169/1/Beitrag_242_final_a.pdf |
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| There is an ongoing discussion amongst researchers and farmers involved in organic horticulture concerning the role that F1 hybrid varieties should play in organic farming. Proponents of hybrids state that their use is already much established in organic farming and that it would be a step backwards to dispense with them. Agronomic superiority of hybrids over open pollinated (OP) varieties is often claimed. Opponents to hybrid varieties claim that heterosis puts an emphasis on biomass accumulation and yield but that the more subtle aspects of ripening and creation of aroma are neglected in hybrid varieties. Project aims including target group: To characterize F1 and OP varieties of carrots in a 2-year field trial. Analytical and sensory parameters are... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Klocke, Bettina; Flath, Kerstin; Schmitt, Anne-Kristin; Miedaner, Thomas; Schmiedchen, Brigitta; Spieß, Hartmut; Szabo, Lilla; Wilde, Peer. |
| Organic Agriculture is especially affected by the increasing spread of stem rust in rye (Puccinia graminis f. sp. secalis) because there is a lack of resistant cultivars in Germany. To analyze the virulence situation of rye stem rust, 71 single-pustule-isolates were established and 30 of those were tested with a differential set consisting of 19 lines. The isolates could be classified into 22 different pathotypes. Only seven pathotypes could be found more than once. Most of the isolates showed a complexity of five virulences. In a preliminary analysis a Simpson index of 0,98 was found indicating a high level of diversity of German stem rust populations. Nine of 19 tested lines reacted fully resistant in seedling stage. In 2011, 70 and 30 rye populations,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2013 |
URL: http://orgprints.org/21335/1/21335_Schmitt.pdf |
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| Gonzálvez, V.; Cifre, H.; Raigón, M.D.. |
| La preservación, mejora y fomento del uso de semillas tradicionales en la agricultura ecológica, puede realizarse muy bien en los huertos urbanos, sobre todo en entornos donde se han perdido, si unimos a los multiplicadores de semillas en forma ecológica, con los usuarios de los huertos. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2018 |
URL: http://orgprints.org/34353/1/Gonzalez26thjornadas%20abstract-proyecto-liveseed.pdf |
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| State of the Art: Organically acceptable seed treatments are partly available, but they need improvements and adjustments for the various vegetable seeds. Definition of the problem: Search for methods and products that are compatible with the standards of organic agriculture in order to improve seed health. Project aims including target group: Improvements and adjustments for the various vegetable seeds. For farmers, seed multipliers and breeders. Methodology: Literature studies, laboratory experiments, on farm trials Results, conclusion, state of the art: Physical seed treatments are most promising, several plant extracts seem to be useful, however, fine tuning of the methods fro various vegetable seeds is necessary. |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Schumacher, Henrik; Paulsen, Hans Marten; Gau, A. E.; Link, Wolfgang. |
| While grain legumes can be regarded as highly valuable protein source for animal nutrition, certain drawbacks inhibit their use as sole foodstuff for livestock. The nutrient quality is reduced by low concentrations of tryptophan and sulfur amino acids. In the past substantial breeding effort has been invested in the reduction of antinutritional components and disease resistance while the protein quality has not been a focal point. To improve the protein quality the elevation of the low sulfur amino acid content is of prominent importance especially for organic production where high methionine feed components are rare. The present work tries to establish a method to select methionine enriched grain legumes for further breeding steps. Agronomical important... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2011 |
URL: http://orgprints.org/17667/2/Schumacher_17667.pdf |
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| From the Introduction to the Proceedings "The European Consortium for Organic Plant Breeding (ECO-PB) is an active network supporting the production and use of organic seeds. It sees the European Union’s Organic Seed Regime as potentially a great step forward for in the development of organic seed but is concerned about the latest discussions regarding implementation per January 1st 2004. Current European Commission proposals seem to allow a great deal of room for derogation. Seed companies are indicating that this year (2003) their organic seed sales have already dropped. Growers are aware that the probable new rules will allow derogation even for those crops for which there is sufficient, appropriate organic seeds. A number of key seed companies... |
| Tipo: Book |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2003 |
URL: http://orgprints.org/2930/1/wilbois%2D2003%2Decopb%2Dworkshop%2Dreport.pdf |
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| Today only few commercial vine grape cultivars are commercially cultivated. Their potential is still behind the standard but highly susceptible varieties. Organic viticulture in a humid climate like in Switzerland is difficult to achieve, mainly due to the high disease pressure of Plasmopora viticola and Unicula Necator. Beside improved natural plant protection spray strategies and products, we put emphasis on disease resistant cultivars to overcome the problem. Project aims - To find grape vine cultivars showing at the same time high wine quality and disease resistance. Methodology - At Frick, under 100 % organic conditions we carry out a “Top-Ten-Trial” with the 10 most promising cultivars in 4 replicates at 50 vine plants each. Thus, there... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
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| DNA-markörer är det bästa verktyget för dokumentation av genetisk variation och i strävan att säkra genetisk mångfald i jordbruket. Via inkorsning av landraser och vildtyper av korn och vete utnyttjas naturligt förekommande unika resistens- och allelopatikällor och dessutom tillförs genetisk variation till odlinsmiljön. Med DNA-markörer kan önskade, naturligt förekommande gener mycket effektivare och snabbare kombineras i miljövänliga sorter med långvarig och hållbar resistens som följd. Odling av korn och vete på 2000-talet kräver mindre fungicider och herbicider och har en utökad genetisk variation. Det som i dag begränsar användningen av DNA-markörer är tillgången till kopplade markörer för viktiga egenskaper. Projektet har som mål att med... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Bertholdsson, Nils-Ove. |
| Waterlogging can reduce crop yield by 20-50% or more, and lack of efficient selection methods is an obstacle in plant breeding. The methods currently used are mainly indices based on germination ability in Petri dishes and leaf chlorosis in plants grown in waterlogged soils. Cultivation in oxygen-depleted nutrient solution is the ultimate waterlogging system. Therefore methods based on root growth inhibition and on fluorescence in plant material hydroponically grown in oxygen-depleted solution were evaluated against data on biomass growthbiomass accumulation in waterlogged soils. Both traits were correlated with waterlogging tolerance in soil, but since it was easier to measure fluorescence, this method was further evaluated. A selection of F2 plants with... |
| Tipo: Journal paper |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2013 |
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| State of the Art: There is an increasing consumer demand for residue-free, thus organic table grapes from regional production. The cultivation of this fruit species, however, is delicate in humid climates and experience to advice growers still lacking. Definition of the problem: Developing and introducing a new culture of table grapes under Swiss climatic and economic conditions. Project aims: Study of the possibility to produce organic Table Grapes under Swiss climate and economical conditions Methodology: On farm trials, consumers taste test, variety testing and plant protection strategies in replicated field trials. Results, conclusion, state of the art: A quality organic production of Muscat Garnier and Muscat de la Birse has been established.... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Registros recuperados: 789 | |
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