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| Registros recuperados: 789 | |
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| Alte Kartoffelsorten In der Schweiz wurden früher diverse Landsorten von Kartoffeln angebaut, welche heute fast vollständig vom Markt verschwunden sind. Die Stiftung Pro Specie Rara widmet sich der Erhaltung alter Kurturpflanzen und Nutztierrassen. Im Rahmen des Projektes "Beschreibung, Sanierung und Nutzung alter Kartoffelsorten" (NAP 02-53) untersucht das FiBL die Anbaueignung ausgewählter alter Kartoffelsorten im Bioanbau. Untersucht werden einerseits Anbaueigenschaften wie Krankheitsanfälligkeit und Ertrag, und andererseits Qualitätsaspekte wie Aussehen, Geschmack und Lagerfähigkeit der Kartoffelknollen. Ziel ist es, die interessantesten alten Kartoffelsorten wieder auf den Markt zu bringen. |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Mohanapriya, Gunasekaran; Bharadwaj, Revuru; Neceda, Carlos; Costa, José Hélio; Kumar, Sarma Rajeev; Sathishkumar, Ramalingam; Thiers, Karine Leitao Lima; Macedo, Elisete Santos; Silvia, Sofia; Annicchiarico, Paolo; Groot, Steven P.C.; Kodde, Jan; Kumari, Aprajita; Gupta, Kapuganti Jagadis; Arnholdt-Schmitt, Birgit. |
| Somatic embryogenesis (SE) is the most striking and prominent example of plant plasticity upon severe stress. Inducing immature carrot seeds perform SE as substitute to germination by auxin treatment can be seen as switch between stress levels associated to morphophysiological plasticity. This experimental system is highly powerful to explore stress response factors that mediate the metabolic switch between cell and tissue identities. Developmental plasticity per se is an emerging trait for in vitro systems and crop improvement. It is supposed to underlie multi-stress tolerance. High plasticity can protect plants throughout life cycles against variable abiotic and biotic conditions. We provide proof of concepts for the existing hypothesis that alternative... |
| Tipo: Journal paper |
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection. |
| Ano: 2019 |
URL: http://orgprints.org/36592/1/fpls-10-01134.pdf |
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| Klaedtke, Stephanie; Stassart, Pierre; Chable, Véronique. |
| Pathogen-free seed is one strategy to protect plants and prevent the introduction and spread of dangerous pests. While this strategy reduces damage to crops and delays the global spread of pathogens, it may also be regarded as an overly reductionist approach to plant health disfavoring the resilience of cropping systems. Rather than defining plant health as an objective entity, a procedural concept consisting of a set of rules for debate in order to incorporate different viewpoints on the continua between naturalist and normativist approaches, negative and positive definitions, reductionism and holism and functionality and resilience has been proposed. In the ongoing research project presented here, the questions suggested are applied to the case of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection Research methodology and philosophy. |
| Ano: 2014 |
URL: http://orgprints.org/24027/1/24027%20SK140214_MM.pdf |
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| Chable, Dr Véronique. |
| Plant breeding activity has to be considered in the context of the agricultural system. The organic agriculture (OA) is more than a way of production: it is consistent with an ethics of the place and role of the man in the nature. Working for OA means to prefer a holistic approach with a ecological vision of the plant and animal in their environment to an analytic approach with a biochemical vision of the living beings. The variety plays at least two roles in the organic way of production: (i) an ecological adaptation of the crop and the keeping of the environment equilibrium in the planting, (ii) a valorisation of products from a soil and a savoir-faire. Moreover, the breeders have to take in account the respect of the natural crossing barriers and the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2002 |
URL: http://orgprints.org/6633/1/proceedings_berlin_symposium.pdf |
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| Cabral Maia, Maria Clideana; Resende, Marcos Deon Vilela de; Oliveira, Luís Cláudio de; Alves, Rafael Moisés; Silva Filho, João Luis da; Rocha, Maurisrael de Moura; Cavalcante, José Jaime Vasconcelos; Roncatto, Givanildo. |
| O cupuaçuzeiro, espécie nativa da região Amazônica, encontra-se em processo de domesticação, apresentando ampla variabilidade genética e condições favoráveis para o estabelecimento de estratégias de melhoramento e conservação. O objetivo foi avaliar geneticamente 36 progênies de meios-irmãos de cupuaçu oriundos de seleção massal estratificada em áreas de produtores, com base nos componentes primários da produtividade. O experimento para seleção das progênies superiores foi instalado no delineamento aleatorizado em blocos, com quatro plantas por parcela e três repetições. Foram consideradas as variáveis de caracterização do fruto (comprimento e largura, ambos em centímetro) e componentes de produção avaliados em grama (peso médio de fruto por planta, peso... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Theobroma grandiflorum; Melhoramento; Seleção precoce Theobroma grandiflorum; Breeding; Precocious election. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/54 |
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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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| Gruber, Harriet; Zenk, Andrea. |
| Der in den meisten Bundesländern eingeschränkte Umfang an Sortenversuchen im ökologi-schen Landbau erschwert eine regionale Sortenempfehlung. Die vielfach geringere Ver-suchspräzision in diesen Anbausystemen verschärft das Problem, welches in häufig hohen Standardfehlern und großen Grenzdifferenzen seinen Ausdruck findet. Daher war es erforderlich auch für die Auswertung der Sortenversuche im ökologischen Landbau Anbaugebiete zu bilden und eine überregionale Auswertung unter Einbeziehung der Ergebnisse benachbarter Anbaugebiete vorzunehmen. Ein weiterer Schritt war die Einführung der Hohenheim-Gülzower Serienauswertung. Mit Hilfe der Regionalisierung und gegebenenfalls gewichteten Einbeziehung von Versuchsergebnissen angrenzender Gebiete (Überlappung) kann... |
| Tipo: Report |
Palavras-chave: Breeding; Genetics and propagation Crop husbandry. |
| Ano: 2009 |
URL: http://orgprints.org/15655/1/ABregionalisierte_Versuchsauswertung.pdf |
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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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| Backes, Dr. Gunter. |
| DNA markører findes på kontaktfladen mellem molekylær genetik og klassisk planteforædling. De kan bruges til de følgende formål: (1) sortsidentififikation, (2) Kvantificering af genetisk diversitet, (3) molekylær detektering af enkelt-gen egenskaber, (4) molekylær detektering af kvantitative egenskaber, (5) selektion i "widecrosses". Disse anvendelsesmuligheder beskrives nærmere i artiklen. I bruges DNA-markører allered i mange forædlingsvirksomheder. I Danmark bruges dem primært til at teste of virusresistens og til at undersøge nedarvning af specifikke kromosomfragmenter gennem forædlingsprocessen. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2002 |
URL: http://orgprints.org/1451/1/Planteforaedling.pdf |
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| Apfelzüchtung. Neue Sorten sind wichtig für die Konkurrenzfähigkeit in der Obstbranche. Bei den Zuchtzielen stehen die Fruchtqualität und die Eignung für die nachhaltige Produktion (IP, Bio) im Vordergrund. Bei der Resistenz gegen die Pilzkrankheiten Schorf und Mehltau ist eine breite genetische Abstützung wichtig. Die Kombination verschiedener Resistenzen wird an der FAW mit molekularen Markern nachgewiesen (Labor J. Frey). Neu kommt die Züchtung auf Feuerbrandresistenz hinzu. Das Marketing neuer FAW-Sorten erfolgt zusammen mit spezialisierten Firmen in der Schweiz und im Ausland. Genressourcen Obst und Gemüse. Das gesellschaftliche und politische Interesse, die Genressourcen zu sichern, ist gross. Der Bericht des EVD über die Umsetzung des globalen... |
| Tipo: Project description |
Palavras-chave: Breeding; Genetics and propagation Fruit and berries. |
| Ano: 2005 |
URL: http://orgprints.org/5039/1/Kellerhals%2D2005%2DApfelzuechtung.pdf |
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| Fradgley, Nick; Creissen, Henry; Sally, Howlett; Helen, Pearce; Robbie, Girling. |
| Crop competition is a key component of an integrated approach to weed management. Variation in competitive ability and competitive traits have been identified in many other crop species, however little work has been done on oats. Trials were carried out over four years at one organic site with five husked and three naked oat varieties. Mid-season Leaf Area Index (LAI) and tillering ability were identified as weed suppressive traits using path analysis. Differences in weed tolerance were found among varieties. Trade-offs may exist between competitive traits and yield potential which could be optimised by limiting competitive traits later in the season. Selection of competitive traits with high heritability, whilst minimising yield penalties, could... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Weed management. |
| Ano: 2014 |
URL: http://orgprints.org/26668/1/Oats%20poster%20at%20SOLIBAM%20Congress%20%28NF_HC%29RG%20%28final%20version%29.pdf |
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| Fradgley, Nick; Creissen, Henry; Howlett, Sally; Pearce, Helen; Girling, Robbie. |
| Crop competition is a key component of an integrated approach to weed management. Variation in competitive ability and competitive traits have been identified in many other crop species, however little work has been done on oats. Trials were carried out over four years at one organic site with five husked and three naked oat varieties. Mid-season Leaf Area Index (LAI) and tillering ability were identified as weed suppressive traits using path analysis. Differences in weed tolerance were found among varieties. Trade-offs may exist between competitive traits and yield potential which could be optimised by limiting competitive traits later in the season. Selection of competitive traits with high heritability, whilst minimising yield penalties, could... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation Weed management. |
| Ano: 2014 |
URL: http://orgprints.org/27170/1/Oats%20poster%20at%20SOLIBAM%20Congress%20%28NF_HC%29RG%20%28final%20version%29.pdf |
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| Kantanen, Juha. |
| Siberia's last remaining indigenous breed of domestic cattle, the Sakha Ynaga (in Yakutian language), or Yakutan Cattle, inhabit the lands surrounding the Lena River in Russia's remote Sakha Republic (Yakutia). A Finnish multidisciplinary team of researchers from MTT Agrifood Research Finland and the University of Helsinki's Aleksanteri Institute explored the genetic uniqueness of the Yakutian cattle and the effect of social and cultural factors on the survival of the breed through periods of major upheaval in Russia's history. The findings of this study have now been published in the book Sakha Ynaga - Cattle of the Yakuts. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2009 |
URL: http://orgprints.org/17601/1/kantanen.pdf |
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| Steffan, Philipp; Borgen, Anders; Backes, Gunter; Rasmussen, Søren K.. |
| Common bunt, caused by Tilletia caries and T. foetida, is a fungal disease of wheat world wide. Infection, occurring via seed borne teliospores, is generally controlled by the application of seed treatments prior to sowing. Farming systems like organic agriculture with a very limited range of organic seed treatments available rely heavily on common bunt resistance genes within wheat. In the framework of the BIOBREED project an association study in winter wheat was conducted, aiming at the identification of genetic loci linked to resistance towards common bunt in wheat. 152 European wheat cultivars were phenotyped for their resistance reaction for the two consecutive years 2011/12 at Agrologica research station at Mariager. Infection was scored as percent... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2013 |
URL: http://orgprints.org/34192/3/biotech2013_34192.pdf |
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| Fleck, Michael; Nagel-Heinze, Christine. |
| Die Verfügbarkeit von ökologisch vermehrtem Saatgut bzw. der Sortenauswahl wird insbesondere bei Gemüse als unzureichend eingestuft. Die verwendeten Sorten sind bei vielen Gemüsekulturen zum überwiegenden Teil Hybriden, die für eine on-farm-Erhaltung ungeeignet sind oder im Falle von aus Zellfusion stammenden CMS-Hybriden nicht mehr fertil und auf Betrieben der Ökolandbauverbände per Richtlinie verboten sind. Diese beiden Aspekte der Saatgutfrage waren maßgebend für die Realisierung dieses Projektes. Mit dem Ziel, die Eignung der Sorten für den ökologischen Gemüsebau zu prüfen, wurden 164 Saatgutmuster noch verfügbarer Populationssorten der Kulturen Kohlrabi (15), Möhren (86) und Porree (63) am europäischen Saatgutmarkt erworben und als Ausgangsmaterial... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2011 |
URL: http://orgprints.org/17661/3/Fleck_17661.pdf |
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| Registros recuperados: 789 | |
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