Consulta: creatorFacets:"Hildermann, Isabell"
Registros recuperados: 17
Data/hora: 12/06/2024 14:49:29

Nutrient use efficiency and arbuscular mycorrhizal root colonisation of winter wheat cultivars in different farming systems of the DOK long-term trial
Provedor de dados: 21
Autores: Hildermann, Isabell; Messmer, Monika; Dubois, David; Boller, Thomas; Wiemken, Andres; Mäder, Paul.
BACKGROUND: For organic farming, cultivars are required with high nutrient use efficiency under nutrient limited conditions. Arbuscular mycorrhizal fungi (AMF) are known to contribute to nutrient uptake under low input conditions. We compared nutrient use efficiency (NUE) of old and modern organically and conventionally bred cultivars in organic and conventional systems and assessed AMF-root colonisation (AMF-RC) in relation to nutrient concentrations.    RESULTS: Cultivars and systems had a statistically significant effect on nitrogen (N) and phosphorus (P) concentrations and NUE parameters, whereas no genotype × environment interactions appeared. In contrast to N and P uptake, the NUE parameters were higher under organic than under conventional...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation Crop health; Quality; Protection.
Ano: 2010
URL: http://orgprints.org/17911/1/Hildermann-etal-2010-jsci-food-agric.pdf

Sorte x Umwelt – Interaktionen von Winterweizen im biologischen Landbau
Provedor de dados: 21
Autores: Hildermann, Isabell; Messmer, Monika; Kunz, Peter; Pregitzer, Anjana; Boller, Thomas; Wiemken, Andres; Mäder, Paul.
Winterweizensorten für den Biolandbau müssen an sehr variable Umweltbedingungen angepasst sein. Acht biologisch und konventionell gezüchtete Weizensorten wurden 2007 im DOKLangzeitversuch in CH-Therwil in zwei bio-dynamischen Systemen (BIODYN 1 und BIODYN 2) auf Loess und 2008 auf bio-dynamischen Betrieben in Rheinau (SH) (Sand mit hohem Kiesanteil), Fehraltorf (ZH) (sandiger Lehm) und Vielbringen-Worb (BE) (sandiger Lehm) an marginalen Standorten getestet.
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/26574/1/SGPW_Bulletin23_2010.pdf

Crop yield and soil fertility response to reduced tillage under organic management
Provedor de dados: 21
Autores: Berner, Alfred; Hildermann, Isabell; Fliessbach, Andreas; Pfiffner, Lukas; Niggli, Urs; Mäder, Paul.
Conservation tillage (no-till and reduced tillage) brings many benefits with respect to soil fertility and energy use, but it also has drawbacks regarding the need for synthetic fertilizers and herbicides. Our objective was to adapt reduced tillage to organic farming by quantifying effects of tillage (plough versus chisel), fertilization (slurry versus manure compost) and biodynamic preparations (with versus without) on soil fertility indicators and crop yield. The experiment was initiated in 2002 on a Stagnic Eutric Cambisol (45% clay content) near Frick (Switzerland) where the average annual precipitation is 1000 mm. This report focuses on the conversion period and examines changes as tillage intensity was reduced. Soil samples were taken from the 0-10...
Tipo: Journal paper
Palavras-chave: Soil quality; Soil biology.
Ano: 2008
URL: http://orgprints.org/14426/1/Berner_et_al_2008_Tillage.pdf

Genotype x Environment Interactions of Winter Wheat
Provedor de dados: 21
Autores: Hildermann, Isabell; Messmer, Monika; Kunz, Peter; Pregitzer, Anjana; Boller, Thomas; Wiemken, Andres; Mäder, Paul.
Winter wheat cultivars for organic farming have to be adapted to highly variable environments. Yield and yield stability, the nutritional value and the bread making quality are here of major importance. Particularly, seed quality, tillering capacity, regeneration ability after harrowing, weed suppression ability, resistance or tolerance against diseases and improved nutrient use efficiency (NUE) under limited nutrient conditions need to be improved by specific breeding efforts (Kunz et al., 2006; Löschenberger et al., 2008).  Ten winter wheat cultivars were grown in 2007 in two organic systems of the DOK long-term experiment in CH-Therwil.  Eight of these cultivars were tested in 2008 at three organic farms in different pedo-climatic environments in...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/19328/1/Hildermann_Eucarpia_2010_Paris_abstract.pdf

Chancen und Potenziale verschiedener Züchtungsmethoden für den Ökolandbau
Provedor de dados: 21
Autores: Messmer, Monika; Hildermann, Isabell; Arncken, Christine; Drexler, Dora; Wilbois, Klaus-Peter.
Das übergeordnete Ziel dieser Studie war es einen Beitrag zu leisten zur Konsensbildung und Transparenz über die Kriterien zur Beurteilung von Züchtungsmethoden. Weiterführendes Ziel war es die Öffentlichkeit für die Wertvorstellungen und Ziele des ökologischen Landbaus zu sensibilisieren und die Bedeutung des Saatguts für unsere Ernährung ins Bewusstsein zu rufen. Eine nachhaltige Produktion von Lebensmitteln aus ökologischem Anbau erfordert eine Optimierung von Sorten und Anbaumethoden. Dringend notwendig ist es, eine Züchtung mit Fokussierung auf die spezifischen Zuchtziele und Anbaumethoden des Ökolandbaus zu etablieren, um Effizienz und Ertragsstabilität der ökologischen Nahrungsmittelproduktion zu erhöhen. Aber auch die Zunahme von gentechnisch...
Tipo: Report
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2011
URL: http://orgprints.org/20029/1/_Kurzbericht_Mercator_Stiftung_17_11_2011_V11.pdf

Sorte x Umwelt – Interaktionen von Winterweizen im Biolandbau
Provedor de dados: 21
Autores: Hildermann, Isabell; Messmer, Monika; Kunz, Peter; Pregitzer, Anjana; Boller, Thomas; Wiemken, Andres; Mäder, Paul.
Winterweizensorten mit Eignung für den Biolandbau müssen an sehr variable Umweltbedingungen angepasst sein. Möglichkeiten, diese Bedingungen in biologischen Anbausystemen zu kontrollieren, sind stark begrenzt, da die Nährstoffzufuhr limitiert ist und keine chemisch synthetischen Pflanzenschutzmittel und leichtlöslichen Mineraldünger eingesetzt werden. Die Züchtungsziele für den Biolandbau weichen teilweise deutlich von den Zielen für den konventionellen Anbau ab. Von besonderer Bedeutung im Biolandbau sind Bestockungsvermögen, Regenerationsfähigkeit nach mechanischer Unkrautbekämpfung, rasche Nährstoffaufnahme, Unkrautunterdrückungsvermögen, Pflanzenhöhe und Resistenz oder mindestens Toleranz gegenüber Blatt- vor allem aber Ährenkrankheiten, ein gut...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/19281/1/Hildermann_et_al_DGQ_2010_V01.pdf

Erträge und Nährstoffgehalte von alten, biologisch und  konventionell gezüchteten Winterweizensorten in  verschiedenen landwirtschaftlichen Systemen
Provedor de dados: 21
Autores: Hildermann, Isabell; Thommen, Andreas; Dubois, David; Boller, Thomas; Wiemken, Andres; Mäder, Paul.
Due to limited nutrient conditions in organic farming winter wheat cultivars can often  not perform to the full extent of their genetic potential. This study aims to assess  nutrient acquisition potential and yields of old, organically and conventionally bred  winter wheat cultivars. Ten cultivars were tested within the DOK long-term experiment  in two organic systems at low and moderate intensity, a conventional stockless system  and an unfertilized control. Yields and nutrient contents of grain and straw were  significantly affected by cultivars and systems. Cultivar x system interactions were not  detected. Yields were increasing with nutrient level and year of release of cultivars.  Under organic conditions all cultivars performed equally well with...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2009
URL: http://orgprints.org/14030/1/Hildermann_14030.pdf

Nutrient Management in Organic Farming and Consequences for Direct and Indirect Selection Strategies
Provedor de dados: 21
Autores: Messmer, Monika; Hildermann, Isabell; Thorup-Kristensen, Kristian; Rengel, Zed.
This chapter contains sections titled:   Introduction  Availability of Nutrients in Organic Farming  Roots: The Hidden Potential  Even Greater Complexity: Plant-Microbe-Soil Interactions  Importance of Selection Environments  Breeding Strategies  References
Tipo: Book chapter
Palavras-chave: Soil quality Breeding; Genetics and propagation.
Ano: 2011
URL: http://orgprints.org/21827/1/messmer-etal-2012-OrganicCropBreeding-p15-38.pdf

Nutrient management in organic farming and consequences for direct and indirect selection strategies
Provedor de dados: 21
Autores: Messmer, Monika; Hildermann, Isabell; Thorup-Kristensen, Kristian; Rengel, Zed.
The chapter deal with the fertilization practices in organic farming and how this affect the requirements for optimized crop genotypes for organic farming. Organic farming does not just lead to generally lower nutrient input, also nutrient sources and timing of nutrient availability is different from conventional farming, leading to different conditions for crop growth. This affects the optimal plant characteristics to breed for, and the way breeding should be performed.
Tipo: Book chapter
Palavras-chave: Composting and manuring Soil Breeding; Genetics and propagation.
Ano: 2012
URL: http://orgprints.org/22286/6/22286.pdf

Techniken der Pflanzenzüchtung
Provedor de dados: 21
Autores: Messmer, Monika; Wilbois, Klaus-Peter; Baier, Chris; Schäfer, Freya; Arncken, Christine; Drexler, Dora; Hildermann, Isabell.
Das Dossier beschreibt traditionelle, neuere, sowie kurz vor der Praxisreife stehende Methoden und Techniken der Pflanzenzüchtung und liefert Beurteilungen zu deren Eignung für den ökologischen Landbau. Ergänzt wird der Methodenüberblick durch das im Rahmen eines Experten-Workshops entstandene Grundlagenpapier zur ökologischen Pflanzenzüchtung und den zur Beurteilung von Züchtungsmethoden für den ökologischen Landbau erarbeiteten Kriterien. Das Dossier will Entscheidungsträgerinnen und -trägern aus der ökologischen Landwirtschaft die für eine sachliche und transparente Beurteilung der Züchtungsmethoden erforderlichen Angaben und Kriterien liefern.
Tipo: Book
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2012
URL: http://orgprints.org/25269/1/1200-pflanzenzuechtung.pdf

Plant Breeding Techniques. An assessment for organic farming
Provedor de dados: 21
Autores: Messmer, Monika; Wilbois, Klaus-Peter; Baier, Chris; Schäfer, Freya; Arncken, Christine; Drexler, Dora; Hildermann, Isabell.
The dossier describes traditional, modern and nearly practice-ready techniques for plant breeding along with assessments of their suitability for organic farming. The overview of techniques is complemented by a position paper from an expert workshop on ecological plant breeding according to organic farming criteria.  The dossier provides decision makers and practitioners of organic farming with the requisite information and criteria for an objective and transparent assessment of plant breeding methods.
Tipo: Book
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2015
URL: http://orgprints.org/29521/1/1202-plant-breeding.pdf

Yield and baking quality of winter wheat cultivars in different farming systems of the DOK long-term trial
Provedor de dados: 21
Autores: Hildermann, Isabell; Thommen, Andreas; Dubois, David; Boller, Thomas; Wiemken, Andres; Mäder, Paul.
A challenge in wheat (Triticum aestivum L.) breeding for organic farming is to provide high-yielding cultivars with appropriate baking qualities under the limiting conditions of organic fertiliser input and without the use of pesticides. Cultivars are usually tested on organic and conventional farms. However, field properties may differ owing to spatial variations of soils and microclimate heterogeneity. In this study, old, organically bred and conventionally bred cultivars were tested in organic and conventional farming systems of the DOK long-term system comparison trial.
Tipo: Journal paper
Palavras-chave: Soil biology Cereals; Pulses and oilseeds.
Ano: 2009
URL: http://orgprints.org/17849/1/Hildermann-etal-2009-jsci-food-agric.pdf

Response of old, new and organically bred winter wheat cultivars in different farming systems:concept and experimental layout in the DOK field trial
Provedor de dados: 21
Autores: Hildermann, Isabell; Thommen, Andreas; Dubois, David; Wiemken, Andres; Boller, Thomas; Maeder, Paul.
Organic farmers often use winter wheat (Triticum aestivum L.) cultivars that have been bred under conventional high-input conditions. We test the hypothesis, whether old and organically bred cultivars are better adapted to low-input conditions through a better functioning of the symbiosis with arbuscular mycorrhizal fungi (AMF). Our aim is to assess the nutrient acquisition potential of old, new and organically bred winter wheat cultivars and to identify the role of AMF for nutrient uptake and growth. In October 2006, an experiment with 10 wheat cultivars was superimposed to all four field replicates of the DOK long-term experiment, comprising four different treatments with increasing nutrient input: unfertilized, biodynamic low and moderate intensity and...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop husbandry.
Ano: 2008
URL: http://orgprints.org/12307/1/Hildermann_12307_ed.doc

Yield and quality of wheat cultivars in organic and conventional farming systems - Is there an influence of the breeding history?
Provedor de dados: 21
Autores: Hildermann, Isabell; Fließbach, Andreas; Mäder, Paul.
Organic farmers often use the same wheat cultivars as conventional farmers. Most of these cultivars have been bred under high-input conditions. Organically managed soils frequently do not deliver enough nutrients and fertilizers are limited. Therefore cultivars bred under high-input conditions often cannot perform to the full extent of their high genetic potential. Better nutrient uptake efficiency would be of great value for organic farms and conventional farms, producing under low-input conditions. Studies with winter wheat showed that cultivars, selected directly under organic conditions finally yielded higher under organic conditions than cultivars selected under conventional conditions [1], indicating a successful adaptation to low-input conditions...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Composting and manuring Breeding; Genetics and propagation.
Ano: 2008
URL: http://orgprints.org/26487/1/Hildermann_etal_wheat_1108V04.pdf

Pflugloser Ökoanbau auf schweren Böden
Provedor de dados: 21
Autores: Berner, Alfred; Hildermann, Isabell; Thalmann, Maria; Hügli, Christian; Frei, Robert; Mäder, Paul.
Auf schweren Böden wurden im System Ökolandbau reduzierte Bodenbearbeitung, Gülledüngung und biologisch-dynamische Präparate geprüft.  Stickstoffengpass im Frühjahr, mehr Aufwand für die Unkrautkontrolle, geringere Getreideerträge bei Pflugverzicht stehen belebterem Oberboden und besseren Zwischenfruchterträgen gegenüber.  Überraschend senkten die biologisch-dynamischen Präparate den Gehalt an Fusariumtoxinen.
Tipo: Journal paper
Palavras-chave: Soil tillage; Composting and manuring.
Ano: 2006
URL: http://orgprints.org/8981/2/le_2006%2D03_color.gif

Sorte x Umwelt-Interaktionen von Winterweizen im biologischen Landbau
Provedor de dados: 21
Autores: Hildermann, Isabell; Messmer, Monika; Kunz, Peter; Pregitzer, Anjana; Boller, Thomas; Wiemken, Andres; Mäder, Paul.
The possibilities to balance environmental conditions in organic farming systems are strongly restricted as the input of nutrients is limited and no soluble fertilisers and synthetic pestizides are used. These systems require cultivars that are able to adapt to stressful, less controlled and therefore highly variable environments. This study sums up the results of winter wheat cultivars tested under marginal and fertile soil conditions on organic farms in Switzerland. Three were derived from organic, three from conventional breeding programs and two old cultivars. Across three marginal sites, there was a slight trend towards higher yields of the organically bred cultivars. This difference was statistically signifi cant at the lowest yielding site. However,...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/19282/1/Hildermann_NUE_Gumpenstein_2009.pdf

Performance of Winter Wheat Cultivars in Organic and Conventional Farming Systems
Provedor de dados: 21
Autores: Hildermann, Isabell.
Global betrachtet war die Steigerung der Erträge zur Bekämpfung von Hunger in den vergangenen Jahrzehnten das Hauptziel in der Weizenzüchtung (Triticum aestivum L). Mit der Einführung von Verzwergungsgenen wurde der Ernteindex verbessert, der das Verhältnis Kornertrag zur oberirdischen Gesamtbiomasse darstellt. Begleitet von einer ansteigenden Zufuhr von Stickstoff- (N) und Phosphor- (P) Düngern und der Anwendung von Pestiziden hat dies zu einem beträchtlichen Ertragszuwachs geführt. Durch die jahrzehntelange Züchtung auf Hochertragssorten für den intensiven Anbau wurde möglicherweise das optimale Düngungsniveau im Weizenanbau verschoben und so indirekt auf Sorten mit einem höheren Nährstoffbedarf selektiert. Arbuskuläre Mykorrhiza können zur...
Tipo: Thesis
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/17238/1/Hildermann_Diss_Zusammenfassung.pdf