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.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
PETOSEED CO
Brassica oleracea L. (White Cabbage Group) · White cabbage
MARNER GZG| Rijk Zwaan Marne Aktiengesellschaft
Zea mays L. · Maize
MAIZE RESEARCH INSTITUTE (ZEMUN POLSE)
Tulipa L. · Tulip
FA. LIGTHART'T VELD J.
Kalanchoe Adans. · Kalanchoe
MR. CLAUD HOPE C/O PAN AMERICA PLANT COMPANY
Chrysanthemum L. · Chrysanthemum
PERIFLEUR (HOLDINGS) LTD
Lilium L. · Lily
LYBELMEX B.V.
Allium porrum L. · Leek
Syngenta Seeds B.V.
Asparagus officinalis L. · Asparagus
Domaine Public (FR)
Rosa L. · Rose
SEGERS THEODORUS ADRIANUS
Gerbera L. · Gerbera
SEGERS THEODORUS ADRIANUS
Allium cepa L. · Onion
PETOSEED, NL
Rosa L. · Rose
SEGERS THEODORUS ADRIANUS
Rosa L. · Rose
SEGERS THEODORUS ADRIANUS
Rosa L. · Rose
SEGERS THEODORUS ADRIANUS
Zea mays L. subsp. mays (Maize Group) · Maize
FAL Station de Recherche Agronomique Federale (CH)
Rosa L. · Rose
SEGERS THEODORUS ADRIANUS
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
GOLDEN WEST SEED RESEARCH Co.
Capsicum annuum L. · Bell pepper
Hybrids Ellas Abee
Beta vulgaris Sugar Beet Group · Sugar beet
Societe Europeenne de Semences NV/SA (BE)
Rosa L. · Rose
SEGERS THEODORUS ADRIANUS
Alstroemeria L. · Alstroemeria
PREGO ROYALTY BV (NL)
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
Bejo Zaden B.V.
Gerbera L. · Gerbera
Segers, Th. A.