Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie

Purpose

Shelf life

CAS and PHP session cookies

Login credentials, session security

Session

Tarteaucitron

Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie

Purpose

Shelf life

atid

Trace the visitor's route in order to establish visit statistics.

13 months

atuserid

Store the anonymous ID of the visitor who starts the first time he visits the site

13 months

atidvisitor

Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at cil-dpo@inrae.fr or by post at :

INRAE

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

Last update: May 2021

Menu Logo Principal AgroParisTech université Paris-Saclay

Welcome to ECOSYS

UMR ECOSYS - Ecologie fonctionnelle et écotoxicologie des agroécosystèmes

Poster 1 : Wheat_architecture_model

Poster 1
Mariem Abichou, Bruno Andrieu

PARAMETERIZING PATTERNS IN WHEAT ARCHITECTURE TO SIMULATE THE 3D DYNAMICS OF WHEAT CROPS

Structural 3D plant models aim at mimicking the dynamics of plant and crop structure based on experimental data. Interfaced with physical models, the 3D models can be used as a tool to investigate how plant structure modulates the interaction with the environment. An example of such model is Adel wheat (Fournier et al.; 2003) which is used to analyse the consequences of architectural traits for the capture or light, pesticide, spores or the simulation of signals perceived by sensors.

The purpose of this work was to revise the parametrisation of plant architecture in Adel-wheat, so as to improve the compromise between flexibility and complexity. We established parametric functions that represent: the emergence, ligulation and senescence of lamina, the dynamic of active tiller population, the final dimension of all tillers organ and the final leaf number produced on each tiller. A large data base was used to define and evaluate these parametrisations, covering different densities, sowing dates, and nitrogen fertilization and with different commercial varieties grown under field conditions. The functions were defined so that parameters are simple to interpret and easy to derive from field measurements.

The new parametrisations allow for simulation of wheat crops from plant emergence to full maturity with less experimental effort, and a better agreement between simulated and measured leaf area index, than previously. Beside, this provides a view of general patterns existing in wheat architecture, which could be used in other models. Finally the work represents one step forward in the ability to characterize and represent the architectural traits for a number of genotypes and environments.

Download documents