Rigel
Protection expiredPhleum pratense L. · Timothy grass
Public domain
Plant breeders' rights are granted for a limited term. Upon expiration, the variety enters the public domain: its seeds can be propagated and sold without the rights holder's license.
Recent years are the most sought-after: the variety is free to use but still in production.
Phleum pratense L. · Timothy grass
Raphanus sativus L. var. oleiformis Pers. · Oil radish
Solanum lycopersicum L. · Tomato
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Hordeum vulgare L. · Barley
Triticum aestivum L. · Bread wheat
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Brassica napus var. napus · Rapeseed
Linum usitatissimum L. · Common flax
Allium sativum L. · Garlic
Phaseolus vulgaris L. · Common bean
Trifolium pratense L. · Red clover
Helianthus annuus L. · Sunflower
Allium cepa L. var. cepa · Onion
Hordeum vulgare L. · Barley
Solanum lycopersicum L. · Tomato
Capsicum annuum L. · Bell pepper
Zea mays L. · Maize
Triticum aestivum L. · Bread wheat
PIONEER HI-BRED INTERNATIONAL
Lactuca sativa L. · Lettuce
Triticum aestivum L. · Bread wheat
Capsicum annuum L. · Bell pepper
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Lolium perenne L. · Perennial ryegrass