AMSEED American Seed Intelligence Platform
Tomato comparison

Amelia vs Bella Rosa

Two southern hybrids bred against spotted wilt and summer heat.

Amelia Bella Rosa
Breeding F1 hybrid F1 hybrid
Growth habit Determinate Determinate
Days to maturity 75-80 72-76
Fruit color red red
Fruit size class large large
Typical weight - -
Primary uses slicing slicing
Introduced - -
Documented resistances 6 5
Saves true from seed No (F1) No (F1)

Measured against each other

The table above is two descriptions placed side by side. Below are the trials that grew both varieties in the same ground, in the same season, measured by the same people. That is the only setting where a difference between them is something somebody observed rather than something we inferred.

Yield and Income of Fall Staked Tomato Cultivars in Eastern Kentucky

2009 · University of Kentucky research plots at Quicksand · Quicksand, Kentucky
MeasurementAmeliaBella RosaWhat the trial concluded
Marketable yield 19,097 lb/aca 15,193 lb/aca Not separated. The trial's own letters put both in the same group, so the 3,904 lb/ac difference is not a result.
Cull rate 4.2 %def 1.9 %ef Not separated. The trial's own letters put both in the same group, so the 2.3 % difference is not a result.
Fruit weight 8.0 ozde 9.6 ozab Bella Rosa was heavier, and the trial's letters separate the two.

Superscript letters are the trial's own mean separation, not ours. Entries sharing a letter were not separated at the trial's significance level however far apart the two figures look, and where a trial published none we say the difference is untested rather than treating the arithmetic as the finding. Each block is one site and one season.

Disease resistance

Amelia

Root-Knot NematodeN · resistant
Tomato Spotted Wilt VirusTSWV · intermediate

Bella Rosa

Alternaria Stem CankerASC · resistant
Tomato Spotted Wilt VirusTSWV · intermediate

Traits

Only Amelia

    Nothing unique in the recorded traits.

    Only Bella Rosa

      Nothing unique in the recorded traits.

      Origins

      Amelia

      The Harris Moran (now HM.CLAUSE) hybrid that gave southeastern growers their first dependable TSWV-resistant fresh-market tomato, changing production economics wherever thrips fly.

      Bella Rosa

      Sakata's heat-set southern slicer pairing TSWV resistance with dependable fruit set in Gulf-state summers.

      Sources & References

      Evidence: 3 sources, all independent references.

      1. Tomato Production and Cultivar Guides · University of Florida IFAS Extension, University or Government
      2. Tomato Varieties for Florida: Florida "Red Rounds," Plums, Cherries, Grapes, and Heirlooms (HS1189) · University of Florida IFAS Extension, University or Government
      3. Yield and Income of Fall Staked Tomato Cultivars in Eastern Kentucky · University of Kentucky College of Agriculture, Department of Horticulture (2009), University or Government