AMSEED American Seed Intelligence Platform

Mountain Merit

F1 hybrid tomato · Solanum lycopersicum · introduced 2014

Breeding
F1 hybrid
Growth habit
Determinate
Days to maturity
73-77 days
Fruit
red, large
Weight
8-10 oz
Bred by
NC State Tomato Breeding Program

Origin & history

The 2014 AAS winner from the NC State Mountain series: a full-size determinate slicer stacking late blight resistance on the V-F-N-TSWV package southern growers need.

Measurements

MeasurementValueContext
Days to maturity 73-77 days Consensus range across the cited sources, which include both independent references and commercial catalogs.
Fruit weight 8-10 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.

Trial results

What this variety did in published university trials. These are observations of a season, not properties of the seed, so they are kept separate from the measurements above and are never merged into them. Letters are each report's own mean-separation groups.

Evaluation of Late Blight Resistant Tomato Varieties, 2013

2013 · New York · full season · published as "Mountain Merit"

MeasurementResultMethod
Late Blight severity * 3.1 % Visual severity rating under natural infection
Late Blight: disease progress (AUDPC) 220.9 index Area under the disease progress curve

Evaluation of Late Blight Resistant Tomato Varieties, 2012

2012 · New York · full season · published as "Mountain Merit"

MeasurementResultMethod
Late Blight severity * 0.1-1.9 % Visual severity rating under natural infection

* Measured differently in different trials. disease severity varied between the trials above. AMSeed shows both figures rather than averaging them, because the difference between them is the finding: performance depends on the site, the season and the protocol, and a single blended number would hide exactly that.

Each trial states its own limits, and they are worth reading before acting on any figure here. Yields in these reports are extrapolated from small research plots and run higher than commercial farms achieve; cull rates reflect the disease pressure of one particular season.

Traits

Disease resistance

CodeDiseaseLevelBasis
Ph-2+Ph-3 Late Blight (Phytophthora infestans) resistant Independently observed
V Verticillium Wilt (Verticillium dahliae) resistant Independently observed
FFF Fusarium Wilt of Tomato (Fusarium oxysporum f. sp. lycopersici) resistant Independently observed
N Root-Knot Nematode (Meloidogyne spp.) resistant Independently observed
TSWV Tomato Spotted Wilt Virus (Orthotospovirus tomatomaculae) resistant Independently observed

Related varieties

Sources & References

Evidence: 5 sources, including 4 independent references.

  1. NC State Fresh-Market Tomato Breeding Program (Mountain series) · North Carolina State University, University or Government
  2. Johnny's Selected Seeds catalog · Johnny's Selected Seeds, Seed Catalog
  3. Vegetable MD Online · Cornell University, Plant Pathology, University or Government
  4. Evaluation of Late Blight Resistant Tomato Varieties, 2012 · Cornell Long Island Horticultural Research and Extension Center (2012), University or Government
  5. Evaluation of Late Blight Resistant Tomato Varieties, 2013 · Cornell Long Island Horticultural Research and Extension Center (2013), University or Government