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A cardinal temperature-based phenotyping method for rice

Audebert Alain, Roques Sandrine, Chapelière V., Rouan Lauriane. 2010. A cardinal temperature-based phenotyping method for rice. In : Proceedings of Agro 2010 : the XIth ESA Congress, August 29th - September 3rd, 2010, Montpellier, France. Wery Jacques (ed.), Shili-Touzi I. (ed.), Perrin A. (ed.). Montpellier : Agropolis international, pp. 85-86. ISBN 978-2-909613-01-7 ESA Congress. 11, Montpellier, France, 29 August 2010/3 September 2010.

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Abstract : Rice is one of the major food crops in the world. It is characterized by a wide diversity of growing conditions through latitude and altitude. Temperature is one of the most important factors determining plant growth, development and yield. In the context of climate change, thermal constraint (cold and chilling) could highly affect rice production. To breed rice varieties better adapted to these new environments, a better knowledge of thermal response in rice varieties is needed. The Cirad Orytage project involving NARS and IRC partners aims at developing an international phenotyping network for rice adaptation to thermal stresses, further aiming at gene discovery and genetic mapping, closely linked to the GCP network. Reaching this goal requires to improve methods for high throughput phenotyping. In case of thermal stress, plant elongation was used to phenotype plant responses to temperatures. From a beta function (Yin, 1995; Wang, 1998), cardinal temperatures (Topt, Tmax and Tmin) were determined using a normalized method. The goal of this work was to study the genetic diversity of the cardinal temperatures in the Oryza sativa japonica tropical group. (Résumé d'auteur)

Classification Agris : F30 - Plant genetics and breeding

Auteurs et affiliations

  • Audebert Alain, CIRAD-BIOS-UPR AIVA (FRA) ORCID: 0000-0002-5822-7166
  • Roques Sandrine, CIRAD-BIOS-UPR AIVA (FRA)
  • Chapelière V., Lycée agricole Sully (FRA)
  • Rouan Lauriane, CIRAD-BIOS-UPR AIVA (FRA)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/557179/)

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