“Sufficient quantity of seed within reasonable proximity to people (spatial availability), and on offer in time for critical sowing periods (temporal availability).” [see also seed security]

References

McGuire, S., Sperling, L. 2011. The links between food security and seed security: facts and fiction that guide response. Development in Practice, 21(4–5):467-481. https://core.ac.uk/download/pdf/132664216.pdf