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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal Clermont Auvergne University


Joint Research Unit 1095 Genetics, Diversity and Ecophysiology of Cereals

3. Wheat breeding program

François-Xavier Oury, N. Bernard, F. Lagoutte
Pépinière de sélection

Working with breeders in the cereals group, we shall be implementing these methods during the next four years in the context of the practical breeding programme carried out by INRA. The objective of the bread wheat breeding programme is to create genotypes with multi-disease resistance that exploit limited nitrogen resources, based on research programmes performed on the tolerance of nitrogen stress, the construction of sustainable disease resistance and the stability of quality. Faced with an increasing incidence of episodes of spring drought and high temperatures during the grain filling phase that limit the expression of yield and quality potential, we need to consider the breeding strategies that are necessary in the medium term. Should one advance the flowering date (earlier sowing, but unfavourable to health status, earlier varieties, etc.) or search for genetic sources of tolerance to limiting factors? During the next four years, we propose to set up a multi-division working group within INRA (EA, ESR, GAP, SAD, SPE, etc.) to reflect on all the consequences of climate change (e.g. successions of pests) and the breeding criteria that need to be taken into account. These innovations must also be considered in the context of integrated production that is more environmentally friendly, while at the same time meeting the economic constraints of the bread wheat sector, particularly in terms of quality. This work will take account of the expected impact of global warming and selection for the tolerance of yield-limiting factors, while in particular integrating the results obtained by BIANCA teams.

Lastly, in to fit the new orientations of INRA towards Agroecology, we will think about defining and take into account new criteria to adpat future variéties to novel farming pratices relying more on ecosystemic interactions such as between crops and soil microorganisms or in between associated crops (e.g. cereals with legumes).