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| Registros recuperados: 808 | |
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| Die Ausnahmeregelung hinsichtlich der Verwendung von nicht ökologisch erzeugtem Saat- und Pflanzgut (VO (EWG) Nr. 2092/91) läuft am 31.12.2003 aus. Voraussichtlich wird in den zuständigen Gremien der Europäischen Union Ende 2002 verhandelt, bei welchen Kulturen eine Verlängerung dieser Frist erfolgt. Je nach Entscheidung gibt es nach dem 31.12.2003 für einen Großteil der Kulturen keine Ausnahmegenehmigung mehr für den bisher möglichen Rückgriff auf konventionelles Saatgut. Dies kann sich je nach Versorgungsgrad bei einzelnen Kulturarten positiv (Kreislaufdenken) oder hemmend (Saatgutmangel) auf die Entwicklung des ökologischen Landbaus auswirken. Die zu erarbeitende Studie über die Marktabdeckung soll dem BMVEL detaillierte Marktkenntnisse liefern als... |
| Tipo: Project description |
Palavras-chave: Regulation Production systems Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Weinhappel, Manfred; Riepl, Ernestine. |
| Common Bunt (Tilletia caries) is a mainly seed borne disease and causes high losses in organic wheat and spelt production. Due to the basic role of seed health in disease prevention, seed quality aspects have to be focussed strictly in organic farming. In the scope of these studies, Tilletia results of 1291 wheat seed lots and 298 spelt wheat lots obtained from officially organic seed production from 2000 to 2012 have been analysed. The data indicated significantly the increasing spread of Tilletia caries in seed production in the last years, nevertheless in 2012 a high rate of more than 90% of the tested lots still corresponds to the requirements for untreated seed according to the Austrian Seed Regulations (threshold level 10 spores/kernel). As the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2013 |
URL: http://orgprints.org/21589/1/21589_weinhappel.pdf |
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| Hansen, Preben Klarskov; Willas, Jakob; Kristensen, Kristian. |
| A screening programme for crop variety competitiveness would ideally be based on only a few, non-destructive measurements of key growth traits. In this study we measured the weed suppressive ability of 79 varieties of spring barley in two ways: 1) directly, by weed coverage assessments under weedy conditions at three Danish locations in 2002-2004, and 2) indirectly, by non-destructive measurements of varietal growth traits under weed-free conditions in 17 other experiments in Denmark in 2001-2003. Based on just four varietal growth traits (reflectance, leaf area index, leaf angle and culm length), we successfully developed a method for indexing the weed suppressive ability of spring barley varieties. The suppressive index ranged from 12% in ‘Lux’ and 55%... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions Weed management Breeding; Genetics and propagation. |
| Ano: 2008 |
URL: http://orgprints.org/11294/2/11294.pdf |
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| van Almsick, Daniela. |
| In den Jahren 2012 bis 2015 fanden einfaktorielle bzw. zweifaktorielle Jungpflanzenversuche bei Erdbeeren (verschiedene Substrate, Topfgröße, Düngung, Sorten) am Versuchszentrum Gartenbau der Landwirtschaftskammer NRW in Köln-Auweiler statt. Ziel der Arbeit war die Entwicklung von guten ökologischen Stecksubstraten für die Praxis, damit Vermehrer oder Erdbeeranbauer mit Eigenvermehrung leistungsstarke Jungpflanzen produzieren können. Die Untersuchungen erfolgten mit den Sorten Elsanta (2012 bis 2015) und Flair (2014 bis 2015). Insgesamt wurden bis zu 18 verschiedene Varianten getestet. Dabei wurden verschiedene ökologische Stecksubstrate mit dem zurzeit im ökologischen Anbau befindlichen Standardverfahren, dem Presstopf und einer konventionell zugekauften... |
| Tipo: Report |
Palavras-chave: Fruit and berries Breeding; Genetics and propagation. |
| Ano: 2015 |
URL: http://orgprints.org/29302/1/29302-11OE039-lwk-nrw-vanAlmsick-2015-mutterpflanzen-erdbeeren.pdf |
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| Henatsch, Christina. |
| Die Ziele einer ökologischen/bio-dynamischen Züchtung sind: - samenfeste Sorten - gutes Wachstum und Durchwurzelungsvermögen bei mäßiger organischer Düngung - Fähigkeit zur Interaktion mit der Umwelt im weitesten Sinne - Toleranz gegenüber Krankheiten und Schädlingen - Harmonisches Wachstum und Reifefähigkeit (Erläuterungen dazu s. Ernährungsqualität) - Guter, typischer Geschmack und Ernährungsqualität Speziell für Getreide könnte man noch hinzufügen: - Erhöhung der Halmlänge (und damit des Strohertrages); das wäre gleichzeitig ein Beispiel für harmonischen, arttypischen Wuchs und Reifevermögen - Beschattungs-/Beikrautunterdrückungsvermögen - Farbe und Glanz von Ähre und Halm als Qualitätsmerkmal |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2002 |
URL: http://orgprints.org/2045/1/henatsch%2Dc%2D2002%2Dzuechtung%2Dnahrungsmittelqualitaet.pdf |
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| Ziel des Projektes ist, bei Salat Sorten mit einer hohen Anpassungsfähigkeit für den Ökologischen Landbau zu entwickeln. Von besonderer Bedeutung ist die Entwicklung deutlich verbesserter Eigenschaften in Bezug auf Stresstoleranz, Nährstoffverwertungsvermögen und Krankheitsresistenz, insbesondere gegenüber B. lactucae. Die Entwicklung von Sorten soll durch Selektions- und Kreuzungszüchtung bei Standortanpassung durch dezentrale Züchtung ermöglicht werden. Die Standortanpassungsfähigkeit ist bei Selbstbefruchtern wie Salat durch die Homozygotie beschränkt. Dennoch kann der Salat sich den Bedingungen der Umgebung gerade bei polygen bedingten Merkmalen wie Trockenheitstoleranz und einem geringen Nährstoffbedarf anpassen. Die Möglichkeit der Anpassung wird... |
| Tipo: Project description |
Palavras-chave: Vegetables Breeding; Genetics and propagation. |
| Ano: 2023 |
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| Moghaddam, Ali; Raza, Amir; Vollmann, Johann; M.Reza, Ardakani; Wolfgang, Wanek; Gabriela, Gollner; Juergen K., Friedel. |
| To identify the effective characters and their relative importance in improvement of BNF, two separate field experiments were conducted under irrigated and rain-fed organic managements of dry, Pannonian region of east Austria. The experiments were laid out in an α-lattice design with two replications and 18 genotypes (eight Iranian ecotypes and ten European cultivars). Plant height was positively and significantly correlated with leaf area index (LAI) and shoot dry matter (DM) under both conditions. Positive correlations were found between biological nitrogen fixation (BNF) and shoot DM (r = 0.61** and 0.87**, irrigated and rain-fed management, respectively). Regarding correlation coefficients, high yielding genotypes had taller plants and denser stands,... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2014 |
URL: http://orgprints.org/23706/1/23706_MM.pdf |
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| Khazaei, Hamid; Street, Ken; Abdallah, Bari; Fred, Stoddard. |
| Grain legumes, such as faba bean (Vicia faba L.), are important sources of protein, particularly for people in developing countries where climate change is expected to result in higher temperatures and changing precipitation patterns. Among grain legumes, faba bean is thought to be relatively sensitive to drought. Faba beans are important legumes in the crop rotations of organic farming. Deeper roots and larger root biomass have been shown to be important contributors to crop performance under drought conditions. Thus root traits could be used as the selection criteria for drought adaptation. During 2010–2011, two sets of faba bean accessions, from ‘wet’ and ‘dry’ regions, each containing 201 accessions, were chosen using the Focused Identification of... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2014 |
URL: http://orgprints.org/32626/1/day1theme3p1khazaei-140625015118-phpapp02.pdf |
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| Parveaud, Claude-Eric; Gomez, Christelle; Libourel, Gilles; Romet, Lionel; Warlop, Francois; Simon, Sylvaine; Brun, Laurent; Pouzoulet, Didier; Delebecq, Alain; Tournant, Ludovic; Oste, Sandrine; Laurens, François. |
| One of the keystones of the organic orchard is the cultivar choice as one element of pest and disease control. However, few exhaustive data sets concerning the cultivar susceptibility to pests and diseases are available for growers. In order to identify cultivars adapted to organic production methods, the susceptibility to scab, aphids and powdery mildew and the agronomic properties of 36 cultivars were assessed in four French sites under different pedo-climatic conditions. Different levels of susceptibility to scab were observed for 23 scab Vf-resistant and 13 other cultivars. In the North of France where Vf resistance is overcome, the Vf cultivars displayed different levels of scab severity. A high variability in the susceptibility to aphids was observed... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Fruit and berries Breeding; Genetics and propagation. |
| Ano: 2010 |
URL: http://orgprints.org/17132/1/Ecofruit_Extended_abstract_Parveaud_et_al_2010.pdf |
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| Sánchez-Giraldez, Helena; De la Cuadra, Celia; Ramos, María. |
| The correct selection of the variety is a fundamental principle in the organic production systems, in order to get a good adaptation and reduce the use of external inputs. So that, enough biodiversity is available to provide the market with horticultural crop varieties selected and developed under organic cultivation management. As part of a larger project, where several species have been on-farm evaluated using participatory evaluation methodologies, this survey shows the first year grown results of 17th melon varieties grown under open field conditions with an intermediate production cycle in the local area of La Jara del Romeral in the province of Caceres, the region of Extremadura located at the west of Spain. Variety groups evaluated include piel de... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Vegetables Breeding; Genetics and propagation. |
| Ano: 2011 |
URL: http://orgprints.org/18535/1/MRamos_melons_[Modo_de_compatibilidad].pdf |
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| Das hier beschriebene Projekt ist Teil eines Verbundvorhabens, das folgende Teilprojekte umfasst: FKZ 10OE008, FKZ 09OE078. Alle in Organic Eprints archivierten Projektbeschreibungen und Veröffentlichungen zu diesem Verbundvorhaben finden Sie unter folgendem Link: http://orgprints.org/cgi/saved_search?savedsearchid=1299. Das Projektvorhaben (FKZ 09OE078) hat das Ziel, die Anbauwürdigkeit von Körnererbsen in der ökologischen Landwirtschaft durch Erweiterung des Sortenspektrums in Richtung Wintererbsen zu erhöhen und deren Anbau durch Selektion unter ökologischen Anbaubedingungen nachhaltig zu sichern. Es sollen bevorzugt winterfeste, halbblattlose, weiß- und buntblühende, standfeste und determinierte Pflanzentypen entwickelt werden. Über die genannten... |
| Tipo: Project description |
Palavras-chave: Crop combinations and interactions Cereals; Pulses and oilseeds Breeding; Genetics and propagation. |
| Ano: 2023 |
URL: http://orgprints.org/18142/1/09OE078%2D10OE008%2Dorgprints.pdf |
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| Fontaine, Laurence; Rolland, Bernard; Bernicot, Marie-Hélène. |
| Bread winter wheat is one of the most important cash crops for French organic farmers. Nevertheless, most of varieties available on the market were bred for conventional farming systems (with high inputs of mineral fertilizers and chemicals for crop defense). In order to obtain correct levels of yield and quality, it is important i) to screen current varieties to find the best suited for organic conditions, and ii) to rapidly obtain suitable varieties that are specifically bred for organic farming conditions. Bread wheat variety trials under organic conditions have been coordinated since the year 2001, to centralize and evaluate results at national level. The ringtest not only aims to compare varieties, but also to support organic breeding, as it provides... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2008 |
URL: http://orgprints.org/12262/1/Fontaine_12262_ed.doc |
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| Borgen, Anders. |
| Modern society faces decreased biodiversity in nature caused by increased uniformity in agriculture, and health related problems with nutrition caused by industrialisation in food production. Conversion to organic farming increases biodiversity, because of diversification in crops and decreased intensity in control of weed and pests, and increase biochemical diversity within food products because of decreased nitrogen application in field. The author argues that the positive effects of in organic farming can be further improved by improved genetic diversity within the crop. Inter-cropping and variety mixtures are already used by some farmers, but diversity within the crop can be further improved by development of composite cross populations, composition... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Breeding; Genetics and propagation. |
| Ano: 2006 |
URL: http://orgprints.org/22136/13/22136.pdf |
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| Registros recuperados: 808 | |
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