Consulta: creatorFacets:"Döring, Thomas F."
Registros recuperados: 41
Data/hora: 06/06/2024 09:32:40

Wheat trials - How reliably do wheat varieties perform under different organic farming conditions?
Provedor de dados: 21
Autores: Döring, Thomas F.; Haigh, Zoe; Pearce, Helen; Pearce, Bruce; Jones, Hannah; Clarke, Sarah; Wolfe, Martin.
A major obstacle in the development of organic farming in the UK is the central problem of winter wheat production. At present, there is a substantial gap between the supply of home-grown organic milling wheat and demand, partially due to shortfalls in both wheat yield and quality. Progress is being made in organic wheat breeding programmes across Europe, although the varieties arising from these are not widely available in the UK. A crucial and unanswered question is how reliably varieties will perform under the diverse conditions that prevail on organic farms. Wheat trial results reported here indicate that the main effects of variety, location, year, or farming practice may often be more important than the complex interactions among these factors....
Tipo: Newspaper or magazine article
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2009
URL: http://orgprints.org/19799/1/2009.Doring_et_al.OrgFarm.pdf

Using legume-based mixtures to enhance the nitrogen use efficiency and economic viability of cropping systems.
Provedor de dados: 21
Autores: Baddeley, J. A.; Döring, Thomas F.; Hatch, David; Marshall, Athole; Pearce, Bruce; Roderick, S; Stobart, Ron; Storkey, Jonathan; Watson, C.A.; Wolfe, Martin.
There is a pressing need to develop arable cropping systems that are both more efficient in their use of nitrogen (N) and more resilient to an increasingly variable and unpredictable climate. One potential solution is to use species-rich mixtures of grasses and legumes in the fertilitybuilding phase of a ley/arable crop rotation. These mixtures may reduce N losses and increase productivity of the following crop. They may also have other important benefits such as increased in-field biodiversity. In this project, legume and grass species with a range of tolerances to different environmental conditions, and with differing growth characteristics, are being grown individually and as a mixture across the UK, and their performance assessed.
Tipo: Conference paper, poster, etc.
Palavras-chave: Nutrient turnover; Crop husbandry.
Ano: 2010
URL: http://orgprints.org/19774/1/SACSEPA2010JAB.pdf

THE MEANING OF ‘HEALTH’ IN THE ORGANIC PRINCIPLE OF HEALTH
Provedor de dados: 21
Autores: Vieweger, Anja; Döring, Thomas F.
In the early 1940’s, Lady Eve Balfour concluded in her book ‘The Living Soil’ that: “The health of soil, plant, animal and man is one and indivisible” (Balfour, 1943). With this key statement she set one of the founding stones for the principles of the organic agriculture movement, later laid down by the International Federation of Organic Agriculture Movements (IFOAM, 2005). It describes the connection of health between soils, plants, animals and humans, and implies that the promotion and maintenance of human health, as one of the highest goals of mankind, critically depends on the health in all other agricultural domains. However, current debates about the meaning and measurement of health are largely disconnected: soil science, plant pathology,...
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health Systems research and participatory research Health and welfare.
Ano: 2014
URL: http://orgprints.org/23276/1/23276_Health%20Concepts_Vieweger%20and%20Doering_MM.pdf

Shallow non-inversion tillage in organic farming maintains crop yields and increases soil C stocks: a meta-analysis
Provedor de dados: 21
Autores: Cooper, Julia; Baranski, Marcin; Stewart, Gavin; Nobel-de Lange, Majimcha; Barberi, Paolo; Fliessbach, Andreas; Peigne, Joséphine; Berner, Alfred; Brock, Christopher; Casagrande, Marion; Crowley, Oliver; David, Christophe; De Vliegher, Alex; Döring, Thomas F.; Dupont, Aurélien; Entz, Martin; Grosse, Meike; Haase, Thorsten; Halde, Caroline; Hammerl, Verena; Huiting, Hilfred; Leithold, Günter; Messmer, Monika; Schloter, Michael; Sukkel, Wijnand; van der Heijden, Marcel G. A.; Willekens, Koen; Wittwer, Raphaël; Mäder, Paul.
Reduced tillage is increasingly promoted to improve sustainability and productivity of agricultural systems. Nonetheless, adoption of reduced tillage by organic farmers has been slow due to concerns about nutrient supply, soil structure, and weeds that may limit yields. Here, we compiled the results from both published and unpublished research comparing deep or shallow inversion tillage, with various categories of reduced tillage under organic management. Shallow refers to less than 25 cm. We found that (1) division of reduced tillage practices into different classes with varying degrees of intensity allowed us to assess the trade-offs between reductions in tillage intensity, crop yields, weed incidence, and soil C stocks. (2) Reducing tillage intensity in...
Tipo: Journal paper
Palavras-chave: Soil quality; Soil tillage.
Ano: 2016
URL: http://orgprints.org/29974/1/Cooper-etal-2016-ASD-36_22.pdf

Reduzierter Blattlausbefall durch Strohmulch in ökologisch angebauten Kartoffeln
Provedor de dados: 21
Autores: Döring, Thomas F.; Heimbach, Udo; Thieme, Thomas; Saucke, Helmut.
Aphids are important pests in potatoes, mainly due to their ability to transmit virus diseases. 17 field experiments were conducted over 4 years at 4 sites on organically managed farms to investigate the effect of straw mulch, applied at various amounts (2–8 t ha-1) shortly after crop emergence, on aphid infestation of potato leaves. The percentage of leaves infested with aphids was repeatedly determined during the growing period in 10 experiments. It was significantly reduced in the mulched treatments at the time around 2 weeks after mulching in 4 experiments, and later, at peak infestation, in 8 experiments. The aphid population size was regularly determined in 11 experiments and was significantly reduced by mulching in 4 of them. In a small scale...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2006
URL: http://orgprints.org/19776/1/2006%2DDoring_et_al%2DMDGAAE.pdf

Using minimum tillage to improve the efficiency of ecosystem service delivery on organic farms
Provedor de dados: 21
Autores: Crowley, Oliver; Döring, Thomas F.; Measures, Mark.
Organic farming practices aim to maximise the delivery of ecosystem services in the agricultural landscape. However, in order to maintain optimal crop productivity the mouldboard plough is often used to control weeds and this can have negative effects on a range of soil parameters, thereby jeopardizing delivery of these services. Reduced tillage (RT) can be beneficial to soils and could improve both the efficiency of production and the delivery of ecosystem services on organic farms. However, abandoning the plough on organic farms is challenging due to impaired weed control. Here we report on a two year trial where an RT system with the Ecodyn, with duck feet shares operating at a depth of 7.6 cm in combination with seed drilling, was compared with...
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil tillage; Soil; Biodiversity and ecosystem services; Weed management.
Ano: 2012
URL: http://orgprints.org/20721/1/Crowley_et_al_2012_Reduced_tillage_and_ecosystem_service_delivery_on_organic_farms.pdf

Wirkungen konservierender Bodenbearbeitung auf Regenwürmer unter Kleegras im ökologischen Landbau
Provedor de dados: 21
Autores: Haby, Jessica; Döring, Thomas F.; Crowley, Oliver; Lazzaro, Mariaterresa; Smith, Jo.
A key challenge in organic agriculture is the reduction of tillage intensity. While previous research has shown earthworms to benefit from reduced tillage (RT), little is known about after-effects of RT during the grass/clover ley phase in organic rotations. In a large-scale replicated on-farm trial in England we studied earthworm populations before and during the ley phase, comparing the Ecodyn cultivator (tilling depth: 7.5 cm) with a mouldboard plough (depth: 15 cm). Spring sampling of earthworms during the ley phase revealed no significant difference in earthworm densities between the two tillage treatments while two years earlier in the arable phase, earthworm densities had been significantly higher under RT. Also, differences in species composition...
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil tillage; Soil.
Ano: 2015
URL: http://orgprints.org/26932/1/26932_haby.pdf

Composite Cross Populations of Cereals in Practice: Arguments and Recent Developments in the Legal Framework Revision
Provedor de dados: 21
Autores: Wolfe, Martin; Howlett, Sally; Fradgley, Nick; Winkler, Louisa; Pearce, Bruce; Döring, Thomas F.
Tipo: Conference paper, poster, etc.
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection Weed management.
Ano: 2013
URL: http://orgprints.org/27955/1/2013.Wolfe%20et%20al%20Eucarpia.pdf

Oat variety characteristics for suppressing weeds
Provedor de dados: 21
Autores: Döring, Thomas F.; Winkler, Louisa; Fradgley, Nick.
Oats are a valuable food source and useful in the crop rotation both in organic and conventional farming systems, partly because of their excellent weed suppression ability. Thomas Döring, Louisa Winkler and Nick Fradgley report new results that show how plant breeding can make oats even better.
Tipo: Newspaper or magazine article
Palavras-chave: Breeding; Genetics and propagation Weed management.
Ano: 2012
URL: http://orgprints.org/22135/1/Bulletin%20111.pdf

Legume based plant mixtures for delivery of multiple ecosystem services: An overview of benefits
Provedor de dados: 21
Autores: Döring, Thomas F.; Baddeley, J. A.; Brown, RJ; Collins, R; Crowley, Oliver; Cuttle, Steve; McCalman, Heather; Pearce, Bruce; Roderick, Stephen; Stobart, Ron; Storkey, Jonathan; Watson, Christine; Wolfe, Martin; Jones, H E.
As costs for mineral fertilizers rise, legume-based leys are recognised as a potential alternative nitrogen source for crops. Here we demonstrate that including species-rich legume-based leys in the rotation helps to maximize synergies between agricultural productivity and other ecosystem services. By using functionally diverse plant species mixtures these services can be optimised and fine-tuned to regional and farm-specific needs. Field experiments run over three years at multiple locations showed that the stability of ley performance was greater in multi-species mixtures than in legume monocultures. In addition, mixing different legume species in the ley helps to suppress both early and late weeds. Further, combining complementary phenologies of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Pasture and forage crops; Nutrient turnover; Biodiversity and ecosystem services.
Ano: 2012
URL: http://orgprints.org/20718/1/Doring_et_al_2012_Legume_mixtures_for_ecosystem_service_delivery_%2D_overview.pdf

Potential and limitations of plant virus epidemiology: lessons from the Potato virus Y pathosystem
Provedor de dados: 21
Autores: Döring, Thomas F.
Abstract Plant virus epidemiology provides powerful tools to investigate key factors that contribute to virus epidemics in agricultural crops. When successful, epidemiological approaches help to guide decisions regarding plant protection strategies. A recent example is epidemiological research on Potato virus Y (PVY) in Finnish seed potato production; this study led to the dentification of the main PVY vector species and helped to determine the timing of virus transmission. However, pathosystems rarely allow research to produce such clear-cut results. In fact, the notorious complexity of plant virus pathosystems, with multiple interactions between virus, vector, plant and environment, makes them often impenetrable even for advanced epidemiological models....
Tipo: Journal paper
Palavras-chave: Crop husbandry Crop health; Quality; Protection.
Ano: 2011
URL: http://orgprints.org/19870/1/Article.pdf

Pest and disease management in organic farming: implications and inspirations for plant breeding
Provedor de dados: 21
Autores: Döring, Thomas F.; Pautasso, Marco; Finckh, Maria R.; Wolfe, Martin.
The co-evolution of plants with their pests and diseases is a major driving force in evolution in nature. As a consequence, many pests and pathogens have multiple functions involved in survival on host populations. As a result of this continuous co-evolution, plant pests and pathogens have been selected for high reproduction rates, because of the low probability of an individual being able to find or infect a compatible host plant. For their part, host plants in natural ecosystems are often interspersed among other plant species and show wide and changing variation among individuals for genes affecting specific or non-specific resistance to each of the many pathogens that may attack them. Throughout the plant world there are dynamic and unstable equilibria...
Tipo: Book chapter
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection.
Ano: 2012
URL: http://orgprints.org/19803/1/Doering%20chapter%2003.pdf

Impacts of climate change on plant diseases – opinions and trends
Provedor de dados: 21
Autores: Pautasso, Marco; Döring, Thomas F.; Garbelotto, M; Pellis, L; Jeger, MJ.
There has been a remarkable scientific output on the topic of how climate change is likely to affect plant diseases in the coming decades. This review addresses the need for review of this burgeoning literature by summarizing opinions of previous reviews and trends in recent studies on the impacts of climate change on plant health. Sudden Oak Death is used as an introductory case study: Californian forests could become even more susceptible to this emerging plant disease, if spring precipitations will be accompanied by warmer temperatures, although climate shifts may also affect the current synchronicity between host cambium activity and pathogen colonization rate. A summary of observed and predicted climate changes, as well as of direct effects of climate...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2012
URL: http://orgprints.org/21902/1/2012.Pautasso%20et%20al.EJPP.pdf

Straw mulch in organically grown potatoes - evaluation and optimisation for virus vector control
Provedor de dados: 21
Autores: Döring, Thomas F.
1. In order to evaluate effects of straw mulch applied at 2.5 – 5 t ha-1 in organically grown potatoes  (Solanum tuberosum L.), 21 field experiments were conducted over five years at two locations Northern Hessen and Southern Niedersachsen, Germany). The experimental sites were characterised by temperate climate conditions (635 – 709 mm precipitation year-1; 8.1°C mean air  temperature) and loamy silt soils. The main focus of the study was on aphids and the aphidtransmitted  Potato virus Y (PVY). This disease is a main problem in seed potato production. In addition to virus and vectors, associated agronomic effects of straw mulch were studied.  2. Straw mulch significantly reduced the incidence of PVY. It was most effective as a protectant for young plants...
Tipo: Thesis
Palavras-chave: Soil Crop health; Quality; Protection.
Ano: 2004
URL: http://orgprints.org/19831/1/2004.Doring.Dissertation.pdf

OSCAR – a new European project on cover crops
Provedor de dados: 21
Autores: Baresel, Jörg Peter; Döring, Thomas F.; Finckh, Maria R.
There is widespread concern over the damage caused by modern agriculture to soil structure and the ecosystem services provided. One approach to overcome this problem is conservation agriculture (CA) which aims to maintain soil structure by minimising soil disturbance, maximising soil cover and using crop rotation. However, despite recent legislation supporting minimum tillage and direct seeding, together with the efforts of pioneer farmers, CA is still practised on less than 4% of the agricultural land in Europe. This underlines the need for major improvements in the approach together with consolidation of, and access to, information about alternative cropping methods and their biological and economic value and performance. A new European FP7-funded...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop husbandry; Soil tillage; Weed management.
Ano: 2012
URL: http://orgprints.org/21903/1/Baresel-2012-EurAgronCongress-Helsinki-abstract.pdf

Strohmulch und Vorkeimen zur Minderung des Virusrisikos in ökologisch produzierten Pflanzkartoffeln
Provedor de dados: 21
Autores: Döring, Thomas F.; Saucke, Helmut.
Das von Blattläusen übertragene Y-Virus der Kartoffel (PVY) stellt eines der Hauptprobleme bei der vegetativen Pflanzkartoffelvermehrung dar, da bei einem Anteil virusinfizierter Knollen über 8% die amtliche Anerkennung als Pflanzgut ausgeschlossen ist. Diesem Risiko steht bei Anerkennung jedoch ein hoher wirtschaftlicher Erlös gegenüber. Das für ökologische Produzenten ab 2004 geltende Verbot der Verwendung von konventionellem Pflanzgut läßt einen steigenden Bedarf an Ökopflanzgut erwarten. Schon jetzt bestehen jedoch v.a. nach blattlausreichen Jahren Engpässe in der Verfügbarkeit von zertifiziertem ökologisch erzeugten Pflanzmaterial. Ziel war daher die Evaluation und Optimierung verschiedener kulturtechnischer Verfahren zur Minderung des Virusrisikos im...
Tipo: Conference paper, poster, etc.
Palavras-chave: Root crops Crop health; Quality; Protection.
Ano: 2003
URL: http://orgprints.org/1104/1/1104%2Ddoering%2D2003%2Dstrohmulch%2Dgegen%2Dvirusrisiko%2Dwien.pdf

Aspekte der Strohmulchanwendung im ökologischen Kartoffelanbau – I.Wirkung auf Mikroklima, Phytophthora  infestans und Rhizoctonia solani
Provedor de dados: 21
Autores: Döring, Thomas F.; Heimbach, Udo; Thieme, Thomas; Finckh, Maria R.; Saucke, Helmut.
Die Anwendung von Strohmulch als eine mögliche Strategie zur Reduzierung von Bodenerosion, Virusinfektionen und Nachernte-Stickstoffverlusten in Kartoffeln wurde hinsichtlich der Effekte auf die Krautfäule (Phytophthora infestans [MONT.] DE BARY) und auf die Pockenkrankheit (Rhizoctonia solani KÜHN) in ökologisch geführten Feldexperimenten über drei Jahre an vier Standorten in Deutschland untersucht. Der Krautfäulebefall wurde in 15 Versuchen als Prozent befallener Blattfläche oder Prozent der Blätter mit Läsionen bonitiert. Rhizoctonia-Pocken auf den geernteten Knollen wurden bei 100 bis 220 Knollen pro Parzelle in 18 Feldversuchen bonitiert. Zusätzlich wurde in einem Feldversuch der Einfluss von Strohmulch auf die Lufttemperatur und die relative...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2006
URL: http://orgprints.org/19802/1/2006%2DDoring_et_al%2DNBDP%2DI.pdf

Against the grain
Provedor de dados: 21
Autores: Döring, Thomas F.; Crowley, Oliver; Wolfe, Martin.
An Organic Research Centre project is examining how diversity-based tools can assist in the on-farm improvement of organic wheat.  Successful organic crop production requires varieties that are resistant to diseases, competitive against weeds, and effective at scavenging nutrients. Yet conventional plant breeding has largely neglected organic systems by breeding varieties exclusively for high input conditions. As a consequence, organic producers currently do not have enough choice of plant varieties for organic conditions.  One way to expand the choice is to create plant diversity anew and subject it to natural selection on organic farms.  After several generations the dominating plants would be better suited to organic systems. This idea is being tested...
Tipo: Newspaper or magazine article
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2011
URL: http://orgprints.org/19777/1/2011.Doring_et_al.OrgFarm.pdf

Developing modern multifunctional agroforestry systems for sustainable intensification
Provedor de dados: 21
Autores: Smith, Jo; Pearce, Bruce; Döring, Thomas F.; Wolfe, M S.
Agroforestry is a land-use system that integrates trees and shrubs with crops and/or livestock production. It has been identified by the International Assessment of Agricultural Knowledge, Science and Technology for Development (IAASTD, 2008) as a ‘win-win’ approach that balances the production of commodities (food, feed, fuel, fibre, etc.) with non-commodity outputs such as environmental protection and cultural and landscape amenities. This paper will review the potential of agroforestry as part of a multifunctional working landscape in temperate regions, and will consider management and policy implications of widespread adoption of this form of land-use.
Tipo: Conference paper, poster, etc.
Palavras-chave: Farming Systems.
Ano: 2012
URL: http://orgprints.org/21905/1/2012.Smith%20SACSEPA.pdf

Effects of reduced tillage in organic farming on yield, weeds and soil carbon: meta-analysis results from the TILMAN-ORG project
Provedor de dados: 21
Autores: Cooper, J.M.; Baranski, M.; Nobel de Lange, M.; BARBERI, P.; Fliessbach, A.; Peigne, J.; Berner, A.; Brock, C.; Casagrande, M.; Crowley, O.; Davide, C.; De Vliegher, Alex; Döring, Thomas F.; Entz, M.; Grosse, M.; Haase, T.; Halde, C.; Hammerl, V.; Huiting, H.; Leithold, G.; Messmer, M.; Schloter, M.; Sukkel, M.; van der Heijden, M.; Willekens, K.; Wittwer, R.; Mäder, Paul.
As part of the TILMAN-ORG CORE ORGANIC II project, data on the use of reduced tillage in organic farming systems from a range of field trials and the published literature was compiled.  A meta-analysis was conducted to determine the impacts of reduced tillage on crop yields, weed pressure and soil organic C stocks. This paper highlights some of the key findings from this study.
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil tillage; Soil; Weed management.
Ano: 2014
URL: http://orgprints.org/23970/1/23970%20Copper_MM.pdf

The organic seed regulations framework in Europe – current status and recommendations for future development
Provedor de dados: 21
Autores: Döring, Thomas F.; Bocci, Riccardo; Hitchings, Roger; Howlett, S. A.; Lammerts van Bueren, E.T.; Pautasso, Marco; Raaijmakers, M; Rey, F; Stubsgaard, Anke; Weinhappel, M.; Wilbois, Klaus-Peter; Winkler, Louisa; Wolfe, M S.
Organic agriculture regulations, in particular European regulation EC 889/2008, prescribe the use of organically produced seed. For many cultivated plants, however, organic seed is often not available. This is mainly because investment in organic plant breeding and seed production has been low in the past. To bridge the gap between organic seed supply and demand, national and European regulations define certain circumstances under which organic producers are permitted to use non-organically produced seed. While the organic sector currently depends on these concessions, they also threaten to impede a further increase in the demand for organic seed, thereby potentially restraining present and future investment in organic seed production and plant breeding....
Tipo: Journal paper
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2012
URL: http://orgprints.org/21904/1/Doring%20et%20al%202012-ORGA%20-%20orgprints.pdf

The Evaluation of the German Programme for Organic Food and Farming Research: Results and pointers for the future
Provedor de dados: 21
Autores: Vieweger, Anja; Häring, Anna Maria; Padel, Susanne; Döring, Thomas F.; Ekert, Stefan; Lampkin, Nicolas; Murphy-Bokern, Donal; Otto, Kristin.
In 2001, the German Federal Government established the Federal Scheme for Organic Agriculture (BÖL). The goal was to improve the professionalism of organic farming in Germany; to support sustained growth in production of organic food; and to stimulate a corresponding growth in the market for organic food.   The paper presents results of an evaluation carried out by an international team in 2012. Our evaluation focused in particular on all research initiated and completed in period 2003 to 2010. The overall aim of the evaluation was to assess the relevance and impact of the research in relation to the BÖL’s goals, the effectiveness of the deployment of the research funding resources, and the efficiency of programme management. Recommendations relate to...
Tipo: Conference paper, poster, etc.
Palavras-chave: Technology transfer; Research communication and quality.
Ano: 2014
URL: http://orgprints.org/30500/7/Viehweger%20et%20al%202014.pdf

Vergleich dreier unterschiedlich spezialisierter Winterweizen-Populationen unter ökologischen und konventionellen Anbaubedingungen in Deutschland und England
Provedor de dados: 21
Autores: Döring, Thomas F.; Weedon, Odette; Brumlop, Sarah; Wolfe, Martin; Finckh, Maria R.
Three Composite Cross Populations (CCPs) of winter wheat were created in 2001, one from crossing high baking quality parents (called QCCP), one based on high yielding parents (YCCP), and one created from both parent sets combined (YQ). All three CCPs were grown for several years in the UK and in Germany under conventional and organic cropping management. Based on properties of the different parent sets, yields were predicted to be highest in the YCCP and lowest in the QCCP, with the YQCCP in between. However, data showed that the YCCP was not significantly higher-yielding than the more generalist YQCCP in five out of six sites; in fact, the YQCCP even tended to outyield the YCCP on average over all sites, and this effect was significant at the German...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2015
URL: http://orgprints.org/26982/1/26982_doering.pdf

Ertragsstabilität im Ökolandbau: Wo steht die Forschung?
Provedor de dados: 21
Autores: Döring, Thomas F.; Piepho, Hans Peter.
Despite the importance of yield stability in organic agriculture, little quantitative information is currently available on the factors limiting stability or on optimal approaches for improving it. Research so far indicates that organic systems are not always more stable than conventional systems; which system is more stable is likely to depend on the spatial and temporal scale of stability and on the measure of stability used. We show that opportunities for quantifying yield stability in organic farming lie in the targeted coordination of existing data networks within the organic community in order to increase yield stability on farms and beyond.
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general; Crop husbandry.
Ano: 2015
URL: http://orgprints.org/27117/1/27117_d%C3%B6ring.pdf

Legume Pick ‘n’ Mix
Provedor de dados: 21
Autores: Döring, Thomas F.; Crowley, Oliver.
In Spring 2009, ORC set up a legume trial on an organic farm, Barrington Park in Gloucestershire, as part of a large research project called Legume LINK. One of its aims is to compare the performance of several legume and grass species for use in fertility building leys. ORC researchers Thomas Döring and Oliver Crowley report that the trial shows the advantage of mixing species grows over time.
Tipo: Newspaper or magazine article
Palavras-chave: Crop husbandry; Soil.
Ano: 2011
URL: http://orgprints.org/19830/1/Doring_and_Crowley_2011_LegLINK_ORC_Bulletin_106.pdf

A new European Project on cover crops
Provedor de dados: 21
Autores: Baresel, Jörg Peter; Döring, Thomas F.; Finckh, Maria R.
Poster of the summary of the EU FP7 project OSCAR.
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil tillage; Biodiversity and ecosystem services; Farm nutrient management.
Ano: 2012
URL: http://orgprints.org/28916/1/OSCAR-ESA2012poster_4.pdf

COBRA: a new European research project for organic plant breeding. In: Conference Booklet - Breeding for Nutrient Efficiency - Joint Meeting of EUCARPIA Section Organic &amp; Low-Input Agriculture and EU NUE-CROPS Project
Provedor de dados: 21
Autores: Döring, Thomas F.; Baresel, Jörg Peter; Borgen, Anders; Finckh, Maria R.; Howlett, Sally; Ortolani, Livia; Pearce, Bruce; Pedersen, T.M.; Wolfe, Martin.
Tipo: Conference paper, poster, etc.
Palavras-chave: Breeding; Genetics and propagation Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/27954/1/2013.Doring%20et%20al.COBRA.Eucarpia.pdf

Vergleich genetisch diverser Brokkoli-Populationssorten mit einer F1-Hybride unter ökologischen Anbaubedingungen
Provedor de dados: 21
Autores: Howlett, Sally; Winkler, Louisa; Döring, Thomas F.; Pearce, Helen; Negri, Valeria; Torricelli, Renzo; Wolfe, Martin.
Field trials were conducted for three years on an organic farm in England to assess the performance and yield variability of two synthetic sprouting broccoli populations with 4 or 8 parents respectively, along with the original landrace mother plants and a commercial F1 hybrid variety as control (Santée). In terms of total yield, Santée outperformed the other entries, but for some other traits, e.g. heading time and number of sprouts, Santée was comparable with the mean of one or more of the genetically diverse entries. Analysis of yield variability over time showed mixed results. With regard to total yield and total sprout number, variability was higher in the F1 hybrid than in the genetically diverse populations, but for other parameters such as average...
Tipo: Conference paper, poster, etc.
Palavras-chave: Vegetables Breeding; Genetics and propagation.
Ano: 2015
URL: http://orgprints.org/26985/1/26985_howlett.pdf

Modelling the ability of legumes to suppress weeds
Provedor de dados: 21
Autores: Storkey, Jonathan; Döring, Thomas F.; Baddeley, J. A.; Marshall, Athole; Roderick, S.; Jones, Hannah.
The ability of different legume cover crops to suppress annual weeds during the early establishment phase was compared using a simulation model of inter-plant competition and field observations. Height, partitioning parameters, extinction coefficients, crop density and time of emergence were recorded for 11 species sown in monocultures. A naturally occurring population of fat hen (Chenopodium album) was present on the experiment. The competition model was run to compare the expected suppressive ability of the different species on this weed. Samples of C. album were also taken from each plot immediately prior to cutting to provide some empirical observations. Predicted suppressive ability was correlated with seed size and height with large seeded, tall...
Tipo: Journal paper
Palavras-chave: Crop combinations and interactions; Soil; Weed management.
Ano: 2011
URL: http://orgprints.org/19881/1/2011.Storkey_et_al.AAB.pdf

A win-win for legume mixtures
Provedor de dados: 21
Autores: Döring, Thomas F.; Crowley, Oliver; Pearce, Helen; Storkey, Jonathan; Brown, Rob; Jones, Hannah.
The inter-relationship between food production and biodiversity is now well established. The ecosystem services provided by the organisms within the environment include, for example, nutrient cycling, pest regulation and pollination, to name but a few. However, perhaps the greatest challenge now facing agricultural production is to find ways of enhancing these ecosystem services, while at the same time increasing food production – particularly in light of food security issues. A range of farm and landscape management options include ‘setting aside’ land for wildlife. However, some proponents argue that such land should be used for food production. While the debate continues, there is no doubt that a large body of scientific evidence from the last three...
Tipo: Newspaper or magazine article
Palavras-chave: Crop combinations and interactions; Crop husbandry.
Ano: 2011
URL: http://orgprints.org/21906/1/2011.Doring%20et%20al.Org%20Farm%20108_LegLink.pdf

20 Jahre Modellbetrieb für Ökolandbau in Müncheberg.   Teil 2: Wie ertragslabil sind Körnerleguminosen im Vergleich zu Getreide und Mais?
Provedor de dados: 21
Autores: Reckling, Moritz; Döring, Thomas F.; Bloch, Ralf; Stein-Bachinger, Karin; Bachinger, Johann.
Auf dem Modellbetrieb für Ökolandbau in Müncheberg wurden von 1993 bis 2013 Feldversuche zur Ermittlung der Ertragsstabilität von zwei Körnerleguminosen (Schmalblättrige Lupine und Futtererbse), Wintergetreide (Roggen und Weizen), Hafer und Silomais durchgeführt. Zwei orthogonale Datensätze wurden genutzt um die temporären Ertragsschwankungen der Einzelkulturen zu vergleichen. Beide Körnerleguminosen zeigten die geringste Ertragsstabilität von allen untersuchten Kulturen. Dies war sowohl für varianzbasierte als auch für regressionsbasierte Stabilitätsparameter der Fall. Gründe für die geringe Ertragsstabilität sind unzureichend bekannt. Es müssen Strategien für das Management entwickelt werden, um mit den großen Schwankungen umzugehen.
Tipo: Conference paper, poster, etc.
Palavras-chave: Production systems Cereals; Pulses and oilseeds Crop husbandry.
Ano: 2015
URL: http://orgprints.org/26912/1/26912_reckling.pdf

Aspekte der Strohmulchanwendung im ökologischen Kartoffelanbau – II.Wirkung auf Potato Virus Y, Leptinotarsa  decemlineata und Knollenertrag
Provedor de dados: 21
Autores: Döring, Thomas F.; Heimbach, Udo; Thieme, Thomas; Saucke, Helmut.
In Praxisversuchen wurde über drei Jahre der Einfluss von Strohmulch auf das Auftreten von PVY (Potato virus Y), den Befall mit dem Kartoffelkäfer (Leptinotarsa decemlineata) und den Knollenertrag in ökologisch angebauten Kartoffeln untersucht. Strohmulch führte in drei von 17 Experimenten zu einer signifikanten Reduktion von PVY, und in weiteren sieben Versuchen gab es einen nicht-signifikanten Trend zur erminderung von PVY. Der Effekt von Strohmulch auf PVY scheint vom allgemeinen Infektionsniveau abzuhängen, welches je nach Jahr, Standort und Sorte unterschiedlich war. So gab es in den Jahren 2002 und 2004 bei allgemein hohem Infektionsdruck eine konsistente PVY-Verminderung. Im Gegensatz dazu konnte im Jahr 2003, bei nur sehr geringem Infektionsdruck,...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2006
URL: http://orgprints.org/19800/1/2006%2DDoring_et_al%2DNBDP%2DII.pdf

Which carabid species benefit from organic agriculture? -  a review of comparative studies in winter cereals from Germany and Switzerland
Provedor de dados: 21
Autores: Döring, Thomas F.; Kromp, Bernhard.
Data of comparative studies about carabid beetles in organically  and conventionally managed winter cereal fields of central  Europe, using the pitfall trapping method, were collected from the  literature and unpublished data sources and were then pooled and  analysed. According to an index, which was designed to calculate  how much a species benefits from organic management, Carabus  auratus turned out to benefit most. Some Amara species (A.  familiaris, A. similata and A. aenea) as well as Pseudoophonus  rufipes and Harpalus affinis also showed high index values. When  analysing the traits of the carabids, the habitat preference was the  most important variable for the differentiation of organic and  conventional management. The stronger the preference...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1106/1/kein%2DDokument.pdf

Representation of Potato Virus Y control strategies in current and past extension literature
Provedor de dados: 21
Autores: Döring, Thomas F.; Schrader, Joachim; Schüler, Christian.
The aphid-vectored Potato virus Y (PVY) is currently seen as an important limiting factor in the production of potatoes in many countries. Using a contentanalysis approach, we investigated the German extension literature for recommendations regarding the control of PVY. Media included articles from periodicals addressing farmers and agricultural textbooks published in the last five decades (1955–2004). In the current literature (1995–2004), the clearly dominating strategy was found to be insecticidal control, although this strategy has been subject to some criticism in the scientific literature. Over the last five decades we also found a strongly increasing representation of insecticidal strategies. Furthermore, over this period of time, information...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Knowledge management Root crops.
Ano: 2006
URL: http://orgprints.org/19778/1/2006%2DDoring_et_al%2DPotres.pdf

Effects of straw mulch on yield, weed development, nitrate dynamics and soil erosion in organically grown potatoes
Provedor de dados: 21
Autores: Döring, Thomas F.; Brandt, M; Heß, J; Finckh , M; Saucke, H.
The application of straw mulch to organic seed potatoes (Solanum tuberosum L.) has been shown to reduce virus incidence. In order to determine the associated agronomic effects of straw mulch, applied at 2.5–5 t ha�1, on soil nitrate dynamics, weed development, tuber yield and soil erosion, 12 field experiments were evaluated. Experiments were conducted on organic farms over 3 years at two locations in a temperate climate (635–709 mm precipitation/year; 8.1 8C mean air temperature) on loamy silt soils. Tuber yield and tuber size distribution were not influenced significantly by mulching. However, the risk of undesirable post harvest N-leaching was significantly reduced due to the immobilization of nitrate–N after harvest at 6.8–7.0 kg N t-1 straw in two...
Tipo: Journal paper
Palavras-chave: Soil; Root crops.
Ano: 2005
URL: http://orgprints.org/16674/1/15.Doering_et_al._2005.FCR.pdf

Potato Virus Y reduction by straw mulch in organic potatoes
Provedor de dados: 21
Autores: Saucke, H; Döring, Thomas F.
Potato virus Y (PVY) is transmitted non-persistently by winged morphs of many aphid species and is a major problem in seed potato production. In order to evaluate the potential of straw mulch applications (4-5 t ha-1) and presprouting on PVY reduction, small scale organically managed field experiments were carried out in Northern Hessen, Germany, over 3 yr. In all years mulching significantly reduced aphid infestation on leaves as well as PVY incidence in tubers. For the effect of presprouting  the temporal coincidence of two factors was crucial � crop emergence and aphid flight activity.  Presprouting decreased PVY incidence when in the phase of early crop emergence aphid spring flight activity was low, but increased it, although not significantly, when...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2004
URL: http://orgprints.org/16677/1/12.Saucke_%26_Doering_2004.AAB.pdf

Legume Based Plant Mixtures for Delivery of Multiple Ecosystem Services: weed diversity and weed control
Provedor de dados: 21
Autores: Döring, Thomas F.; Storkey, Jonathan; Baddeley, J. A.; Crowley, Oliver; Howlett, S. A.; McCalman, Heather; Pearce, Helen; Roderick, Stephen; Jones, H E.
Legume-based leys offer multiple benefits to ecosystem service provision, e.g. protecting soil and supporting pollinators. While weeds can play an antagonistic role during ley establishment, little is known about weed communities in these leys or about the optimal solutions for weed control in the establishment phase. To determine if the choice of ley species affects weed levels, we conducted field trials at six locations in the UK, measuring weed cover and biomass in monoculture plots of 12 legume and 4 grass species, plus an all species mix over two years. In these trials and in additional on-farm trials, weed cover and diversity were lower in the second than in the first year, owing to a decrease of annual weeds over time. The ability of a diverse...
Tipo: Conference paper, poster, etc.
Palavras-chave: Pasture and forage crops; Biodiversity and ecosystem services; Weed management.
Ano: 2012
URL: http://orgprints.org/20716/1/Doring_et_al_2012_Legume_mixtures_for_ecosystem_service_delivery_%2D_weed_control.pdf

Visual ecology of aphids – a critical review on the role of colours in host finding
Provedor de dados: 21
Autores: Döring, Thomas F.; Chittka, Lars.
We review the rich literature on behavioural responses of aphids (Hemiptera: Aphididae) to stimuli of different colours. Only in one species there are adequate physiological data on spectral sensitivity to explain behaviour crisply in mechanistic terms.   Because of the great interest in aphid responses to coloured targets from an evolutionary, ecological and applied perspective, there is a substantial need to expand these studies to more species of aphids, and to quantify spectral properties of stimuli rigorously. We show that aphid responses to colours, at least for some species, are likely based on a specific colour opponency mechanism, with positive input from the green domain of the spectrum and negative input from the blue and/or UV region.   We...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2007
URL: http://orgprints.org/19804/1/2007.Doring_%26_Chittka.APIS.pdf

Weedy science – the Arabidopsis research boom
Provedor de dados: 21
Autores: Döring, Thomas F.
A tiny weed called Arabidopsis thaliana causes no economic damage in any major crop but more people are currently conducting research on this plant than on any food crop. In the years 2004 to 2008 the number of scientists working on Arabidopsis was roughly four times as large as the number of scientists working on wheat.
Tipo: Newspaper or magazine article
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/19798/1/2010.Doring.Arabidopsis.ORC%2DBull.pdf

The Evaluation of the German Programme for Organic Food and Farming Research: Results and pointers for the future
Provedor de dados: 21
Autores: Vieweger, Anja; Häring, Anna Maria; Padel, Susanne; Döring, Thomas F.; Ekert, Stefan; Lampkin, Nicolas; Murphy-Bokern, Donal; Otto, Kristin.
In 2001, the German Federal Government established the Federal Scheme for Organic Agriculture (BÖL). The goal was to improve the professionalism of organic farming in Germany; to support sustained growth in production of organic food; and to stimulate a corresponding growth in the market for organic food.   The paper presents results of an evaluation carried out by an international team in 2012. Our evaluation focused in particular on all research initiated and completed in period 2003 to 2010. The overall aim of the evaluation was to assess the relevance and impact of the research in relation to the BÖL’s goals, the effectiveness of the deployment of the research funding resources, and the efficiency of programme management. Recommendations relate to...
Tipo: Conference paper, poster, etc.
Palavras-chave: Technology transfer; Research communication and quality.
Ano: 2014
URL: http://orgprints.org/23555/1/23555_MM.pdf

There is nothing like an oat
Provedor de dados: 21
Autores: Pearce, Helen; Döring, Thomas F.
The items reports on first year trials in of the “Quoats” project.  It’s well known that oats are generally a good fit in organic rotations and the “Quoats” project – Harnessing new technologies for sustainable oat production and utilisation – aims to make them even better. This five year (2009 – 2014) research project, led by IBERS, Aberystwyth University, brings together a wide range of organisations in the supply chain, from breeders to end-users, to improve the quality and performance of oats.  As part of the project, ORC is carrying out field trials to assess the suitability of new oat lines for organic management systems, with particular emphasis on nutrient use efficiency. Eight varieties are being trialled at Wakelyns Agroforestry, Suffolk,...
Tipo: Newspaper or magazine article
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/19873/1/2010.Pearce%26_Doring.Quoats.Bulletin_102.pdf