Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free:

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site:, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Google Analytics

Targeted advertising cookies


The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at or by post at:

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

Dernière mise à jour : Mai 2018

Menu Logo Principal Rennes 1 University Logo Igepp

Home page


Controlling Variation In Germination and seed vigour in Oilseed Rape for optimal yield Stability

The Convigour Project

  • 3 year programme, started in 2011
  • Plant KBBE Project Call (Transnational PLant Alliance for Novel Technologies – towards implementing the Knowledge-Based Bio-Economy in Europe
  • Coordinator:Dr. Gunhild Leckband (German Seed Alliance GmbH, Germany) – French coordinator: Dr. Nathalie Nesi
  • Contact:


Context and Issues

To stabilise high yield levels growers require the rapid establishment of optimum plant stands under many different environmental conditions. Because germination refers to the ability of a seed to produce a normal seedling under favourable conditions, selection of seedlots on the basis of germination characteristics alone will not necessarily identify those that will be most successful in seedling establishment.

The aim of CONVIGOUR is to determine the genetic basis and molecular mechanisms influencing genetic variation for seed vigour in Brassica napus and develop new bio- and genetic markers for breeding of new cultivars with enhanced vigour and yield stability.

In particular the project aims to:

  • Understand the impact of seed and seed coat structure and chemical composition on seed vigour
  • Determine the roles of micronutrients and phytohormones on germination performance and vigour
  • Understand the responses of these seed traits to environmental factors in order to investigate the Genotype x Environment interactions
  • Develop bio-markers and high-throughput metabolic and genetic screening tools for breeding of new cultivars with enhanced seed vigour and environmental stable yield


The objectives proposed in this project will be achieved by high-throughput phenotyping and genotyping of a large collection of genetically diverse B. napus genotypes. The industrial partners will provide expertise in field-based phenotyping and Brassica biology, and will benefit from the application of new genetic and bio-markers. A tight partner network has been established according to the respective expertise of the industry and research partners

Main Result

As a result we first expect to gain major improvements in breeding and seed production by better understanding the phenotypes of seed production failures in certain genotypes or under certain environmental conditions. This will lead to identification of candidate genes and bio-markers that are expected to increase the efficiency of breeding for seed quality traits in B. napus. CONVIGOUR represents a concerted transnational effort to attain a comprehensive systems-level understanding of B. napus seed vigour, its response and adaptation to the environment and its influence on yield. Through the selection of excellent complementary partners, combining four different technology platforms in three countries, we expect to generate considerable amounts of new data and knowledge on seed vigour, and to translate these resources into innovative prediction and modeling tools in commercial breeding practice. The CONVIGOUR network will consolidate and expand existing transnational research efforts and bring together some of the leading partners in European oilseed rape and North American canola breeding and research.


The CONVIGOUR project combines 9 public and private partners from 3 different countries (Germany, France and Canada).

  • German Seed Alliance GmbH (GSA), Hohenlieth – Germany
  • KWS Saat AG (KWS), Einbeck – Germany
  • Justus Liebig University (UGI), Giessen – Germany
  • Leibniz-Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben – Germany
  • RAGT R2n, La Chapelle d’Armentières – France
  • GEVES: Station Nationale d'Essais de Semences, Beaucouzé – France
  • UMR1349 IGEPP, INRA Rennes, Agrocampus Ouest, University of Rennes1 – France
  • UMR1245 IRHS, INRA Angers, Agrocampus Ouest, University of Angers – France
  • Agriculture and Agri-Food Canada (AAFC) Saskatoon – Canada

Funding and Support

Funding by ANR (Agence Nationale de la Recherche)