AMSEED American Seed Intelligence Platform

Park's Whopper

F1 hybrid tomato · Solanum lycopersicum

Breeding
F1 hybrid
Growth habit
Indeterminate
Days to maturity
65-70 days
Fruit
red, beefsteak
Weight
12-16 oz
Bred by
Park Seed

Origin & history

Park Seed's flagship hybrid since the 1980s, pairing large smooth fruit with heavy foliage cover that prevents the sunscald that spoils many big-fruited varieties.

Measurements

MeasurementValueContext
Days to maturity 65-70 days Consensus range across the cited sources, which include both independent references and commercial catalogs.
Fruit weight 12-16 oz Typical range for the cultivar, as a consensus across the cited sources. Not a measured mean from any single crop: fruit weight varies with season, spacing and where on the plant the fruit set.

Traits

Disease resistance

CodeDiseaseLevelBasis
V Verticillium Wilt (Verticillium dahliae) resistant Breeder declared
F Fusarium Wilt of Tomato (Fusarium oxysporum f. sp. lycopersici) resistant Breeder declared
N Root-Knot Nematode (Meloidogyne spp.) resistant Breeder declared
TMV Tobacco Mosaic Virus (Tobamovirus tabaci / ToMV) resistant Breeder declared

Breeder declared means the resistance was stated by whoever breeds or sells the seed. That is not a reason to disbelieve it, and for most resistance genes it is the only evidence that exists: the breeder screens the line and publishes the result in their catalog, and no independent party re-tests it. We label it rather than quietly presenting it as though someone had checked.

Related varieties

Sources & References

Evidence: 2 sources, including 1 independent reference.

  1. Tomato Growers Supply catalog · Tomato Growers Supply Company, Seed Catalog
  2. Vegetable Varieties for Gardeners · Cornell University Cooperative Extension, University or Government