Consulta: creatorFacets:"Desclaux, D."
Registros recuperados: 6
Data/hora: 01/06/2024 13:55:32

From Ideotype to Realtype concept: Dynamic management of plant breeding by a multidisciplinary and participatory way. Example of organic durum wheat
Provedor de dados: 21
Autores: Desclaux, D.; Chiffoleau, Y.; Nolot, J.M.
A travers l’exemple du blé dur, les auteurs explorent l’évolution temporelle de la notion d’idéotype mais aussi comment la diversification actuelle des environnements en AB influe sur la diversification des idéotypes et rend nécessaire une démarche dynamique et participative d’amélioration des plantes. Cette façon renouvelée de concevoir et gérer la sélection amène à dépasser la notion d’idéotype, qui reste associée à des critères de sélection a priori, pour préférer le terme de « realtype », qui traduirait la mise à l’épreuve de l’idéotype à la réalité des terrains. Ce n’est donc pas la construction de l’idéotype « par rapport à » mais bien « dans » le contexte qui est recherché et permise par un dispositif collectif représentant la diversité des acteurs...
Tipo: Journal paper
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2013
URL: http://orgprints.org/26253/1/Desclaux_2013_CIAG_Vol32.pdf

An integrated study of the development of organic rice cultivation in the Camargue (France)-
Provedor de dados: 21
Autores: Mouret, J.C.; Hammond, R.; Dreyfus, F.; Desclaux, D.; Marnotte, P.; Mesléard, F.
In the Camargue, rice and durum wheat are associated in rotations that have an ambivalent ecological impact: on the one hand, these two crops contribute to the preservation of the surrounding ecosystem, while on the other hand, when cropped intensively, they can threaten the ecological equilibrium of this protected area. In this context, organic agriculture would seem to be an alternative adopted by a certain number of producers and processors. However, the pioneers of this practice encounter numerous problems, both agronomic and economic. The study presented here aims: to construct a pluridisciplinary approach to analyse the conditions of the development of organic cereal cultivation in the Camargue: to identify the principal factors that limit the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions.
Ano: 2004
URL: http://orgprints.org/6492/1/turin%2Driz.pdf

Innovation and research in organic farming: A multi‐level approach to facilitate cooperation among stakeholders
Provedor de dados: 21
Autores: Bellon, S.; Desclaux, D.; LE PICHON, V.
A wider range of stakeholders is expected to be involved in organic research. A decision‐support tool is needed  to  define  priorities  and  to  allocate  tasks  among institutions.  Based  on  research  and  management experience  in  organic  research,  the  authors  have developed  a  framework  for  experimental  and  research   projects. The framework is based on a multi‐level approach. Each level is defined according to the directness of the innovation impact on the organic systems. The projects carried out for each level were assessed over a ten-year period.  Two  applications  are  presented: analysis  of  crop  protection  strategies  in  horticulture  and  plant breeding  programmes.  When  combined  with  four  development  models  of  organic...
Tipo: Conference paper, poster, etc.
Palavras-chave: Farming Systems; Research methodology and philosophy.
Ano: 2010
URL: http://orgprints.org/19501/1/Bellon_et_al_2011_19501_Conference_Paper.pdf

Developments in breeding cereals for organic agriculture
Provedor de dados: 21
Autores: Wolfe, M.S.; Baresel, J.P.; Desclaux, D.; Goldringer, I.; Hoad, S.; Kovacs, G.; Löschenberger, F.; Miedaner, T.; Østergard, H.; Lammerts van Bueren, E.T.
The need for increased sustainability of performance in cereal varieties, particularly in organic agriculture (OA), is limited by the lack of varieties adapted to organic conditions. Here, the needs for breeding are reviewed in the context of three major marketing types, global, regional, local, in European OA. Currently, the effort is determined, partly, by the outcomes from trials that compare varieties under OA and CA (conventional agriculture) conditions. The differences are sufficiently large and important to warrant an increase in appropriate breeding. The wide range of environments within OA and between years, underlines the need to try to select for specific adaptation in target environments. The difficulty of doing so can be helped by...
Tipo: Journal paper
Palavras-chave: Food security; Food quality and human health Breeding; Genetics and propagation.
Ano: 2008
URL: http://orgprints.org/15284/1/wolfe%2Detal%2D2008%2DEUPH%2DOrganic_breeding%2Dp323%2D346.pdf

Ability of new durum wheat pure lines to meet yield stability and quality requirements in low input and organic systems
Provedor de dados: 21
Autores: Colomb, B.; Desclaux, D.; Debaeke, P.; Justes, E.; Burger, P.
Low-input production schemes adopted in organic or conventional farms require crop varieties that combine good product quality and high yield stability under non optimal environmental conditions (Gooding et al., 1999). These traits are not yet found among the durum wheat genotypes available in France. Consequently the cultivation of this crop is hardly successful in stockless organic farms in southern France, which are characterised by very low nitrogen resources. Some hopes emerged with the identification of new durum wheat pure lines with a high grain protein content in breeding experiments conducted near Montpellier in 2001 and 2002. The aim of the present work was to confirm and elucidate the origin of the enhanced protein performance of these new...
Tipo: Conference paper, poster, etc.
Palavras-chave: Breeding; Genetics and propagation Farm nutrient management.
Ano: 2004
URL: http://orgprints.org/6491/1/colomb.pdf

Participatory Plant Breeding Methods for Organic Cereals
Provedor de dados: 21
Autores: Desclaux, D.
Formal breeding methods were not always suitable to address the very large diversity of both environmental conditions and end-user needs. Both were frequently encountered either in marginal areas of developing countries or in organic farms of EEC. Participatory plant breeding (PPB) methods represent alternatives aimed to improve local adaptation breeding, to promote genetic diversity, to empower farmers and rural communities. The term  PPB refers to a set of breeding methods usually distinguished  by the objectives (functional or process approach), institutional context (farmer-led  or formal-led),  forms of interaction between farmers and breeders (consultative, collaborative or collegial), location of breeding (centralized or decentralized), stage of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Systems research and participatory research Breeding; Genetics and propagation.
Ano: 2005
URL: http://orgprints.org/6493/1/driebergen.pdf