Tomato Growers Supply catalog
Specialist tomato/pepper catalog; consensus reference for variety attributes across hundreds of cultivars. Code convention, checked 2026-10-07: Tomato Growers publishes no key for its resistance codes, which appear in product names, and its catalog mixes letter counts (VFFF) with international race numbering (F 0-1, where race 0 is the US race 1). Without the issuer's own definition its codes cannot be read as specific races, so AMSeed records them at disease level.
This record cites the publisher's output as a whole rather than one publication, and none of its 84 resistance claims says where inside it the statement appears. Following a citation to it lands on a homepage. That is a gap in our records, counted on the source index and being worked down.
Resistance claims
What this source says about each variety. Alone marks a claim no other source in the database corroborates, so it stands or falls with this one.
Every source, by what rests on it · How AMSeed handles evidence