Interlaboratory Comparison Testing / PT

Interlaboratory Comparison (ILC) tests are used to assess the performance of a laboratory or to validate a test method.

ILC testing at GEVES

Interlaboratory Comparison (ILC) tests are used either to assess the performance of a laboratory or to validate a test method.

Proficiency testing is used to assess the competence of a laboratory.

It is also possible to organise mini-comparisons with two or more participating laboratories, on the same basis as an PT. The organisation of these mini-comparisons and the statistical processing of results is adapted to the smaller number of laboratories involved.

Proficiency testing and mini-comparison PTs can be organised by contacting the SNES.

At GEVES, PTs are organised in accordance with the principles of the 17043 accreditation standard. The competence of the teams involved with regard to the tests and species concerned is instrumental.

Regardless of the framework chosen by the PT’s prescribing body (la Direction de la Qualité et du Contrôle officiel de SEMAE, UFS or other), GEVES guarantees total anonymity and confidentiality. This is ensured by assigning a code identity to both participants and samples.

Liste	Définitions	Nb de variétés au 30/06/2017
A	Variétés dont les semences peuvent être multipliées et commercialisées en France et par extension en UE Inscription : Epreuves DHS (Distinction, Homogénéité, Stabilité) et VATE (Valeur Agronomique, Technologique et Environnementale). Semences certifiées.	2935 soit 80%
B	Variétés dont les semences peuvent être multipliées en France en vue de leur exportation hors de l’UE Inscription : DHS uniquement Semences	681 soit 19%
C	Variétés de conservation cultivées traditionnellement dans des régions spécifiques et menacées d’érosion génétique (DHS allégée). Inscription : DHS allégée Sélection conservatrice, production et commercialisation des semences en France. Restriction sur les surfaces ou les quantités de semences selon l’espèce.	11 dont 10 variétés de pomme de terre et 1 mais (population Lacaune)
P	Parents d’hybride pour les céréales à paille	7
V	Associations variétales dont les semences peuvent être multipliées et commercialisées en France, et par extension en UE Inscription : Epreuves DHS (Distinction, Homogénéité, Stabilité) et VATE (Valeur Agronomique, Technologique et Environnementale). Semences certifiées.	2 variétés de colza

ILC Programme

Contact information : eil.semences@geves.fr

For this PT, Participants are invited to use the website devoted

Purity Proficiency Tests (PT)

To register to purity: contact: eil.semences@geves.fr

Species	Test	EIL Code	Delivery of samples*	Results returned to participants	Report available	PT Registration: Participation in this PT is open to
Alfalfa	Other seeds determination by number on purity weight	2024-SEMAE-LUZERNE-DPP	07/10/2024	15/11/2024	13/12/2024	SEMAE's authorised laboratories
Soybean	Other seeds determination by number on purity weight	2024-SEMAE-SOJA-DPP	02/12/2024	10/01/2025	14/02/2025	SEMAE's authorised laboratories
Flax	Other seeds determination by number on purity weight	2025-SEMAE-LIN-DPP	10/03/2025	11/04/2025	16/03/2025	SEMAE's authorised laboratories

*Depending on availability of seed lots

The dates communicated here are subject to the avalability of lots meeting the required characteristics and to the validation of samples after quality control.

For this PT, Participants are invited to use the website devoted :

Germination Proficiency Tests (PT)

Species	Test	EIL Code	Delivery of samples*	Results returned to participants	Report available	PT Registration: participation in this PT is open to
Flax	Germination	2024-GEVES-LIN-GE	09/09/2024	04/10/2024	18/10/2024	All laboratories
Alfalfa	Germination	2024-GEVES-LUZERNE-GE	21/10/2024	29/10/2024	20/12/2024	All laboratories
Clover	Germination	2024-GEVES-TREFLE-GE				All laboratories
Corn	Germination					SEMAE's authorised laboratories
Fababeans	Germination					SEMAE's authorised laboratories

*Depending on availability of seed lots

The dates communicated here are subject to the avalability of lots meeting the required characteristics and to the validation of samples after quality control.

For this PT, Participants are invited to use the website devoted :

Detection of pathogens on seeds Proficiency Tests (PT)

Species	Test or Pest	Method	EIL Code	Delivery of samples*	Statut
Tomato	Cmm		2022-GEVES-TOMATO-BA-CMM	2024	In progress
Cabbage	Alternaria brassicae, Alternaria brassicicola, Alternaria japonica et Phoma lingam		2023-UFS-CABBAGE-MY-ALTPL	2024	In progress
Sunflower	Botrytis cinerea		2023-GEVES-SUNFLOWER-MY-BOT	2024	In progress
Cucurbit	CGMV	Internal method (ELISA)		2025	Scheduled
Sunflower	Plasmopora halstedii	GEVES method's (grinding and qPCR)		2025	Scheduled
Alfalfa	Ditylenchus dipsaci	GEVES method's (SE-qPCR and morpho biometric identification)		2025	Scheduled

* Depending on availability of seed lots

The dates communicated here are subject to the avalability of lots meeting the required characteristics and to the validation of samples after quality control.

ILC assistance

Have you participated in a proficiency testing ILC?

GEVES can assist you in reviewing the report and implementing the necessary corrective action (training, double reading, self-testing with seed control kits or reference samples).

Contacts

For seed quality ILC testing (Purity, Germination, Detection of Pathogens on seeds) : SNES

For ILC testing using biochemical: BioGEVES

*Participation in ILC testing organised within the framework of laboratory approval is compulsory for approved laboratories for the species and tests in their scope of approval.