AMSEED American Seed Intelligence Platform
AMSeed · American Seed Intelligence Platform https://amseed.com/varieties/new-yorker-tomato
Tomato variety

New Yorker

Open-pollinated tomato

Breeding
Open-pollinated
Growth habit
Determinate
Days to maturity
60-66 days
3 sources, 1 independent · basis unstated
Fruit
red, medium
Weight
-
Bred by
-

Grey captions say what stands behind that particular figure. Breeding, growth habit and fruit characters carry no caption because they rest on the record's sources as a whole rather than citing their own; closing that gap is ordinary outstanding work, not a finished job.

Origin & history

A Cornell-bred early determinate for the urban Northeast's short seasons, carrying verticillium resistance from the university's mid-century program.

Measurements

MeasurementValueContext
Days to maturity 60-66 days Consensus range across the cited sources, which include both independent references and commercial catalogs.

Against the rest of the tomato database

Where this variety sits among every tomato we hold a comparable figure for. Position is not merit: earlier is not better than later, and hotter is not better than milder. Only cultivar-level figures are compared, never trial results, and maturity is only ranked against figures counted the same way.

Days to maturity 60-66 days · ranked at its midpoint, 63
47.5 median 75 90

earlier than 88% of the 258 tomatoes we hold a figure for. None of these figures state whether they are counted from sowing or from transplant, so they are ranked against each other on the assumption that suppliers use one convention, which is not something any of them says.

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.

Across every trial

What each measurement rests on. A figure from one plot in one season and a figure seen repeatedly across sites and years are different kinds of evidence, so the weight is printed beside the number rather than left for the reader to count.

MeasurementObservedEvidence behind itLevel
Late Blight severity 55.6-88.8 % 2 observations from 2 trials, 2012-2013
Late Blight: disease progress (AUDPC) 1,285 index 1 observation from 1 trial, 2013

Ranges span what was observed; no average is taken across trials. Where the trials measured differently or grew at different populations the figures are a spread across conditions, not one population, and the row says so.

Evaluation of Late Blight Resistant Tomato Varieties, 2013

2013 · New York · full season · published as "New Yorker OP"

MeasurementResultMethod
Late Blight severity * 86 % Visual severity rating under natural infection
Late Blight: disease progress (AUDPC) 1,285 index Area under the disease progress curve

Evaluation of Late Blight Resistant Tomato Varieties, 2012

2012 · New York · full season · published as "New Yorker"

MeasurementResultMethod
Late Blight severity * 55.6-88.8 % 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.

Production systems

Described as suited to

No source we cite says which production system this variety suits.

Grown in trials under

Open field 2 trials

Grown in open field in 2 trials we hold. That records where the plants stood, not where the variety belongs; no other system has been tested here.

Traits

Disease resistance

CodeDiseaseLevelBasis
V Verticillium Wilt (Verticillium dahliae) resistant Breeder declared

V records that this variety has some resistance to this disease without naming which gene. The pathogen has 3 named races that different genes answer differently, so how much of it this covers is not established by the source.

Verticillium Wilt: Recorded at disease level. This pathogen has 3 named races that varieties meet differently, and the source we cite does not distinguish them.

Every resistance claim here cites a publisher's whole output rather than one publication, and does not say where inside it the statement appears, so it cannot be looked up as cited. That is a gap in our records rather than a judgement on the claim, and it is counted and being worked down.

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

Explore all tomato varieties · compare any two · when to plant it where you are

Sources & References

Evidence: 5 sources, including 3 independent references.

  1. Vegetable Varieties for Gardeners · Cornell University Cooperative Extension, Community Collection
  2. Victory Seeds variety histories · Victory Seed Company, Seed Catalog
  3. Vegetable MD Online · Cornell University, Plant Pathology, University or Government
  4. Evaluation of Late Blight Resistant Tomato Varieties, 2013 · Cornell Long Island Horticultural Research and Extension Center (2013), University or Government
  5. Evaluation of Late Blight Resistant Tomato Varieties, 2012 · Cornell Long Island Horticultural Research and Extension Center (2012), University or Government