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Jeudis de TI : review the 2022 sessions!

13 Jul 2022

The "Jeudis de TI" are webinars where Terres Inovia's experts offer to discuss the latest news on oilseeds and the innovative solutions implemented by the institute in 30 minutes. During this exchange, our experts are available to answer participants' questions.


For the first half of 2022, no less than 10 sessions have been offered by our experts. Were you unable to attend these sessions? We offer you a catch-up session!

Imagine, test, evaluate and adapt innovations to support the agroecological transition on the farm

January 06, 2022

In order to support the agroecological transition on farms, the CASDAR OUTILLAGE project (operational resources for OUTILLing the step-by-step design of agroecological cropping systems on farms) aims to develop tools to support farmers. Led by Terres Inovia and involving 22 partners, the OUTILLAGE project has made it possible to develop decision trees, dashboards and observation methods enabling farmers and their advisors to imagine, test, evaluate and continuously adapt innovations that meet their expectations.

Speaker : Stéphane CADOUX

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Calculation of the nitrogen nutrition index for oilseed rape: updating the critical nitrogen content curve (results of the Inn Colza project)

February 10, 2022

The nitrogen nutrition index (NNI) is a key agronomic variable for determining the nitrogen supply status of a crop at a given point in its growing season. It is calculated as the ratio between the measured nitrogen content of the above-ground parts of the plants and the reference (so-called "critical") nitrogen content for the level of dry biomass reached by the crop.
The critical nitrogen curve for oilseed rape used today is based on work that is almost 25 years old. It was necessary to update it with the most recent data available.

Speakers : Sébastien GERVOIS & Luc CHAMPOLIVIER

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What is the status of​​​​​​​ Fileg, the project to create a legume industry in Occitania?

February 24, 2022

In order to promote legumes, Terres Inovia, together with the interprofessional organisation Terres Univia and numerous partners, is working on the creation of a sector dedicated to legumes in Occitania.
This regional and federative project, whose ambition is the creation of values (economic, social, societal, environmental...) for regional agriculture, responds in particular to the major challenges of food and agro-ecological transitions.
This regional agreement on these issues has led the project's pilots, the heads of agricultural and economic organisations and institutions to commit to phase 2 of the Fileg project, which began in 2020.

Speaker : Christophe VOGRINCIC

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Demonstration of decision support tools for harvest date and seeding density for sunflower

March 10, 2022

Terres Inovia provides a series of simple technical tools to accompany you throughout the sunflower cycle. The first two presented are :
•    A calculator to estimate the recommended seeding rate and adapted to each situation, in order to ensure a satisfactory stand according to the water constraints of the plot.
•    Mapping to estimate the harvest period according to the sowing date and varietal precocity in order to make the right choices to secure the sunflower harvest


Speakers : Sébastien GERVOIS & Claire MARTIN MONJARET

How a seed observatory works

March 24, 2022

The seed quality observatories, organised by Terres Inovia with the support of Terres Univia, have been used since the 1990s to characterise seed collection in France. This characterisation focuses on quality criteria that are essentially physico-chemical and have a technical or economic impact on the first use or processing (market, outlets) and/or are taken into account in the transaction amounts.

The observatories allow the constitution of multiannual references over a long period on the quality of seeds obtained according to recognised and homogenous methodologies and allow the information of the operators of the sector on the supply of French seeds
They enable the materialization and identification on a large scale of agronomic and environmental effects on the quality of the seeds collected and to capture trends in quality that can generate collective technical or organizational actions

The dissemination of the results of the observatories is free and open to all on the Terres Inovia and Terres Univia websites, and we propose to (re)present the work on these observatories with a focus on the latest trends observed with the 2021 harvest data.

Speakers : Vincent JAUVION et Charlotte CANALE (Terres Univia)

Innovative agroecological practices in farmers' networks

April 21, 2022

Launched by the Regional Chamber of Agriculture of Occitania in 2018 and bringing together many actors in regional agriculture*, the AGLAE project (Farmers share Their Agroecological practices) aims to create a reference system of agroecological practices in Large Scale Crops and Livestock, qualified by experts, and based on feedback identified locally among farmers in the Occitania region. These testimonies deal with specific technical issues: how to effectively control weeds? How to regulate bio-aggressors in the plots?
The AGLAE project has been supported until the end of 2021 by funding from the Adour-Garonne Water Agency, and comprises 3 complementary components:

  • The identification of innovative agroecological practices in farmers' networks, aiming at the acquisition of technical references;
  • The qualification of these practices and the assessment of the risks involved in their implementation, thanks to a process involving a committee of experts;
  • The large-scale dissemination of qualified practices, through fact sheets and video testimonials.

This project thus contributes to securing advice for farmers and to the agro-ecological transition of farms.

Speakers : Matthieu ABBELA & Mélanie LOBIETTI (CRA Occitanie)

Promote and develop new seed legume-based industries

May 19, 2022

The European LegValue project (2017-2021), coordinated by Terres Inovia and Terres Univia, has analysed the development dynamics of grain legumes at the territorial, national and EU levels, based on numerous case studies, in relation to market trends driven in particular by the diversity of human food outlets. The results of this project are now feeding the actions led by the Interprofession to support this development.

Speakers : Frédéric MUEL et Tiana SMADJA (Terres Univia)

A new method for characterising sunflower blight races (results of the Optimildiou project)

June 02, 2022

Sunflower blight is a disease that has been on the rise for the last 3 years. Nearly 20 races have currently been identified in France and this pathogen is once again proving to be particularly progressive.
Optimildiou is a project, essentially methodological, which aims to validate a brand new method for characterising sunflower downy mildew races, based on molecular markers. The main results will be presented during this session.

Speaker : Emmanuelle MESTRIES


The new recommended lists for rapeseed 2022

June 16, 2022

In order to optimise the choice of varieties according to the pedoclimatic context, Terres Inovia supports producers by proposing the recommended lists of rapeseed varieties for sowing in 2022.
The choice of variety is an essential agronomic lever for sustainable pest management and allows the crop to express its full potential.
To help producers make their choice, the​​​​​​​ lists recommended by Terres Inovia must meet several objectives: minimum productivity, but also lower sensitivity to phoma, lodging and elongation.

Speaker : Arnaud VAN BOXSOM

Orto-box: the toolbox that characterises sunflower varieties against cumana broomrape

June 30, 2022

The objective of the Orto-box project was to build a "toolbox" for reliable characterisation and distinction of sunflower varieties against cumana broomrape when registering varieties with the CTPS. It comprises three complementary elements:

  • An official protocol for characterising and distinguishing sunflower varieties against the parasitic plant under controlled conditions.
  • A set of differential lines, public and diffusible, to characterise the populations of Orobanche cumana, associated with a reference collection of different races of the parasite.
  • A protocol for the maintenance and multiplication of broomrape populations in the collection.

Speaker : Christophe JESTIN

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The next appointments for the second half of 2022 are coming soon!