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A multi-environmental study of recent breeding progress on nitrogen use efficiency in wheat (Triticum aestivum L.)

Cormier Fabien, Faure Sébastien, Dubreuil Pierre, Heumez Emmanuel, Beauchêne Katia, Lafarge Stéphane, Praud Sébastien, Le Gouis Jacques. 2013. A multi-environmental study of recent breeding progress on nitrogen use efficiency in wheat (Triticum aestivum L.). Theoretical and Applied Genetics, 126 (12) : pp. 3035-3048.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : HORTICULTURE / Quartile : Q1, Sujet : AGRONOMY / Quartile : Q1, Sujet : PLANT SCIENCES / Quartile : Q2, Sujet : GENETICS & HEREDITY

Abstract : In a context where European agriculture practices have to deal with environmental concerns and nitrogen (N) fertiliser cost, nitrogen use efficiency (NUE) has to be improved. This study assessed genetic progress in winter wheat (Triticum aestivum L.) NUE. Two hundred and twenty-five European elite varieties were tested in four environments under two levels of N. Global genetic progress was assessed on additive genetic values and on genotype × N interaction, covering 25 years of European breeding. To avoid sampling bias, quality, precocity and plant height were added as covariates in the analyses when needed. Genotype × environment interactions were highly significant for all the traits studied to such an extent that no additive genetic effect was detected on N uptake. Genotype × N interactions were significant for yield, grain protein content (GPC), N concentration in straw, N utilisation, and NUE. Grain yield improvement (+0.45 % year−1) was independent of the N treatment. GPC was stable, thus grain nitrogen yield was improved (+0.39 % year−1). Genetic progress on N harvest index (+0.12 % year−1) and on N concentration in straw (−0.52 % year−1) possibly revealed improvement in N remobilisation. There has been an improvement of NUE additive genetic value (+0.33 % year−1) linked to better N utilisation (+0.20 % year−1). Improved yield stability was detected as a significant improvement of NUE in low compared to high N conditions. The application of these results to breeding programs is discussed.

Mots-clés géographiques Agrovoc : Picardie, France

Mots-clés libres : Breeding, Wheat, Nitrogen use efficiency, Selection

Classification Agris : F30 - Plant genetics and breeding
F61 - Plant physiology - Nutrition
F04 - Fertilizing

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Cormier Fabien, Biogemma (FRA) ORCID: 0000-0002-7283-4616
  • Faure Sébastien, Biogemma (FRA)
  • Dubreuil Pierre, Biogemma (FRA)
  • Heumez Emmanuel, INRA (FRA)
  • Beauchêne Katia, ARVALIS Institut du végétal (FRA)
  • Lafarge Stéphane, Biogemma (FRA)
  • Praud Sébastien, Biogemma (FRA) - auteur correspondant
  • Le Gouis Jacques, INRA (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/587088/)

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