AMSEED American Seed Intelligence Platform

Roma VF vs Plum Regal

The open-pollinated paste standard against a blight-resistant hybrid replacement.

Roma VF Plum Regal
Breeding Open-pollinated F1 hybrid
Growth habit Determinate Determinate
Days to maturity 73-80 68-75
Fruit color red red
Fruit size class plum plum
Typical weight - -
Primary uses sauce, paste, canning sauce, paste
Introduced 1955 -
Documented resistances 2 3
Saves true from seed Yes No (F1)

Disease resistance

Roma VF

Verticillium WiltV · resistant

Plum Regal

Late BlightPh-3 · intermediate
Verticillium WiltV · resistant

Traits

Only Roma VF

  • Open-Pollinated

Only Plum Regal

  • F1 Hybrid

Origins

Roma VF

The USDA-bred paste tomato that became a supermarket generic. Released from the Beltsville program in the 1950s, with the VF re-selection adding fusarium and verticillium resistance, one of the earliest mainstream examples of resistance breeding in a home-garden variety.

Plum Regal

A modern plum bred for sauce growers in blight country: full Ph-2 + Ph-3 late blight resistance in a determinate Roma-class fruit.

Sources & References

Evidence: 6 sources, including 4 independent references.

  1. Vegetable Varieties for Gardeners · Cornell University Cooperative Extension, University or Government
  2. Tomato Growers Supply catalog · Tomato Growers Supply Company, Seed Catalog
  3. Vegetable MD Online · Cornell University, Plant Pathology, University or Government
  4. Johnny's Selected Seeds catalog · Johnny's Selected Seeds, Seed Catalog
  5. Evaluation of Late Blight Resistant Tomato Varieties, 2013 · Cornell Long Island Horticultural Research and Extension Center (2013), University or Government
  6. Evaluation of Late Blight Resistant Tomato Varieties, 2012 · Cornell Long Island Horticultural Research and Extension Center (2012), University or Government