“Production and supply of seed of modern varieties and certified seed through an organized chain including specialized plant breeders, regulated seed producers, and specialized commercial outlets or government extension agencies.”

References

Sperling, Louise. 2008. When Disaster Strikes: A Guide to Assessing Seed System Security. CIAT Publication. Cali, Colombia: CIAT. http://ciat-library.ciat.cgiar.org/Articulos_CIAT/sssa_manual_ciat.pdf