Basis for designing a tool to evaluate new cultivars

Lecomte, Christophe; Prost, Lorène; Cerf, Marianne; Meynard, Jean-Marc

doi:10.1051/agro/2009042

Cited by 20 publications

(34 citation statements)

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“…Once stabilized, the genotype is tested through formal regulatory procedures that have to be officially registered. As the stage of official registration is mandatory to access the market, its criteria strongly orient the design of varieties Lecomte et al (2010). At EU level, intellectual property of the varieties ensures recognition of the private breeding companies' ownership of the varieties they designed, but these varieties can nevertheless be used and cross-bred by anyone else to design other varieties Make the registration criteria and procedure evolve within the existing strong legal framework that attributes most value to the productivity of the variety in order to meet agro-ecological requirements…”

Section: Plant Varietymentioning

confidence: 99%

“…It is also based on the use of specific methods to assess the objects under design. For example, breeders use multi-environment trials, carried out on several locations and for several years, to compare their new varieties with current varieties (Lecomte et al 2010): Only the new varieties that perform well under a wide range of conditions are kept. This type of procedure, which also exists for plant protection products, aims at designing objects with a broad spectrum of use.…”

Section: Design In Agriculture Requires Renewing the Way To Address Tmentioning

confidence: 99%

“…To illustrate this idea, consider the design of a decision-support tool. Researchers first undertook an analysis of the activities of potential users (Lecomte et al 2010). They then developed Diagvar, a prototype of a tool that supports the characterization of winter wheat cultivars to identify those best suited to specific agronomic situations.…”

Section: Design In Agriculture Increasingly Requires the Articulationmentioning

confidence: 99%

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Innovative design for agriculture in the move towards sustainability: scientific challenges

et al. 2016

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International audienceAgriculture is facing increasing innovation challenges to meet current societal expectations, yet very few design science studies are devoted to it. This paper highlights some of the particularities of the objects, reasoning and organization of design in agriculture that may open fruitful scientific dialogue between design scientists and agricultural scientists. We first provide an overview of the broad range of objects that are designed in agriculture, and point out their specific characteristics with regard to design. We then identify some particular challenges of design activities in agriculture and review how they have been addressed up to now. Finally, we discuss how design challenges and characteristics in agriculture can contribute to current debate in the field of design science. We propose two main lines of inquiry and debate: enhancing the links between design reasoning and organization, and further conceptualizing the status of use situations in design to deal with uncertainties and complexity in design processes. Acknowledgements: We thank our two research divisions at INRA (French National Institute for Agricultural Research) for their support to the research on design in agriculture: the Science for Action and Development (SAD) division and the Environment & Agronomy (EA) division. This work was realized on the initiative of the newly born INRA institute for design in agrifood systems. We thank Liz Libbrecht for language editing the English version of this paper, and are deeply grateful to the three anonymous reviewers for their comments that were of great help for improving this article

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Section: Plant Varietymentioning

confidence: 99%

Section: Design In Agriculture Requires Renewing the Way To Address Tmentioning

confidence: 99%

Section: Design In Agriculture Increasingly Requires the Articulationmentioning

confidence: 99%

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Innovative design for agriculture in the move towards sustainability: scientific challenges

et al. 2016

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“…Quantitative traits are vulnerable to environmental forces responsible for the genotype-tophenotype gap. For instance, in multi-environmental trials of wheat, pea, soybean and maize, the environment effect has been shown to be preponderant, representing some 50-80% of total variation, whilst variation due to the genotype effect was only 10-25% (Lecomte et al 2010).…”

Section: The Isolation Environment Optimizes Response To Selectionmentioning

confidence: 99%

Development of crop cultivars by honeycomb breeding

Fasoula

Tokatlidis

2011

Agron. Sustain. Dev.

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The ability of agriculture to adapt to environmental changes and to address main issues of food quality and environment protection is a fundamental factor in achieving sustainability. Low yield capacity of contemporary sustainable farming systems, however, is a major obstacle to future growth of sustainable agriculture. In addition, increasing pressure is placed for higher food supply due to the projected population increase. To overcome these barriers and stimulate the wide adoption of sustainable agriculture, ample supply of cultivars that satisfy the requirements for sustainability without compromising productivity is essential. Otherwise, the viability of sustainable agriculture is unsound. Moreover, plant breeding has to be a non-stop process supporting agriculture because of the ongoing climate changes. The studies of the effects of competition on crop yield and selection efficiency unravelled important findings for plant breeders. Firstly, the uppermost cultivar type is the mono-genotypic and particularly the highest evolutionary grade of 'pure line'. Secondly, single plant selection is effective only when it is realized in the absence of competition for growth resources. Honeycomb methodology, by considering as a major principle the application of selection in the absence of competition, counteracts the disturbing effects of competition on selection effectiveness. Furthermore, the honeycomb experimental designs cope with the confounding implications of soil heterogeneity. These two findings help breeders to consider the individual plant as an evaluating and selection unit. As a consequence, the development of pure line cultivars that fully meet the needs of a sustainable agriculture is possible. Most importantly, honeycomb breeding exploits effectively not only favourable but marginal environments as well through the development of density-neutral cultivars. Marginal environments are exploited optimally when lower plant populations are used. It is of essence to realize that without the ability of exploiting successfully marginal environments which represent the majority of the production environments globally, sustainability in agriculture becomes problematic.

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“…Phenotypes of the training populations were evaluated in multi-environmental field trials. A crop diagnosis modelling approach (Lecomte et al, 2010) was applied to identify the factors that limit plant productivity under each environment and to calculate the effect of these limiting factors on yield in the different genotypes. Contrary to phenotypic selection, running selection based on genomic-estimated breeding values from single traits allows identifying expected top lines without a priori on a favourable ideotype or plant characteristics other than the target trait.…”

Section: Deducing Targeted Ideotypes From Best Candidates Identifiedmentioning

confidence: 99%

The PeaMUST project: defining ideotypes for the pea crop development

Burstin

Rameau

Bourion

et al. 2018

OCL

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Pea is the most widely cultivated grain legume crop in Europe. In the French research project PeaMUST, a large public and private sector partnership has been set up to undertake complementary strategies towards the development of high and stable yielding cultivars. These different strategies will contribute to the definition of a pea ideotype based on both a priori and a posteriori approaches. On the one hand, genomic selection will identify interesting genotypes which may display new phenotypic ideotypes. On the other hand, marker-assisted selection will enable cumulating resistance for a given or different stresses to reach more durably stable phenotypes. Moreover, mutations identified in candidate genes controlling aerial and root architecture will be tested for their effects on stress tolerance.Keywords: pea / ideotype / aerial and root architecture / durable resistance / genomic selection Résumé -Le projet PeaMUST : définition d'idéotypes pour le développement de la culture du pois protéagineux. Le pois est la légumineuse à graines la plus cultivée en Europe. Dans le cadre du projet de recherche français PeaMUST, un vaste partenariat entre secteurs public et privé a été établi pour mettre en oeuvre des stratégies complémentaires visant à développer des cultivars à rendement élevé et régulier. Ces différentes stratégies, basées sur des approches a priori et a posteriori, contribueront à la définition d'un idéotype de pois. D'une part, la sélection génomique identifiera des génotypes intéressants pouvant présenter de nouveaux idéotypes phénotypiques. D'autre part, la sélection assistée par marqueurs permettra de cumuler des résistances pour un stress donné ou pour différents stress et ainsi d'atteindre des phénotypes plus stables. Enfin, des mutations identifiées dans des gènes candidats contrôlant l'architecture aérienne et racinaire des plantes seront testées pour leur effet sur la tolérance aux stress.

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Basis for designing a tool to evaluate new cultivars

Cited by 20 publications

References 14 publications

Innovative design for agriculture in the move towards sustainability: scientific challenges

Innovative design for agriculture in the move towards sustainability: scientific challenges

Development of crop cultivars by honeycomb breeding

The PeaMUST project: defining ideotypes for the pea crop development

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