International Seed Testing Association approved production plants for large seed lots of Poaceae (grasses)

List of approved production plants

The production plants listed on this page meet the requirements of the ISTA rules for producing large seed lots of Poaceae species, up to a maximum quantity of 25,000kg (with a 5% tolerance).

Approvals are granted according to species groups with similar characteristics. There are two species groups:

• Species group 1: Lolium perenne, Lolium multiflorum, Lolium ×boucheanum (previously Lolium ×boucheanum), ×Festulolium, Festuca pratensis, Festuca arundinacea and Phleum pratense.
• Species group 2: Festuca rubra, Festuca ovina, Festuca filiformis, Festuca heterophylla, Festuca trachyphylla, Dactylis glomerata, Poa pratensis and Poa trivialis.

Last updated: 3 July 2024