ASTA Variety Referencing Database (announcement page)
The 1997 page announcing a searchable variety referencing database, the direct historical ancestor of AMSeed's variety database, and still linked from ibiblio with the anchor 'database'.
0varieties cite it
0resistance claims
0of those rest on it alone
0measurements
Cited in AMSeed's research and editorial pages rather than in variety records.
Every source, by what rests on it · How AMSeed handles evidence