Current UCUI
68/100
Moderate-High Uncertainty
+4 points from prior reading
Potato Market Intelligence
Seed Potato Lot Rejection Criteria
Seed potato lot rejection criteria determine when material loses the class, destination, or use expected by the buyer. Growers and processors can connect an official rejection or downgrade with variety, class, booked acreage, freight, and replacement depth to assess the true commercial impact.
Market Data
How to read this market
Seed potato lot rejection criteria define the conditions that can disqualify or downgrade a lot, including disease incidence, varietal mixture, size, grade, damage, generation, labeling, documentation, or other program-specific requirements. The market object should identify lot, variety, class, origin, failed criterion, decision date, and any permitted alternate use.
Use rejection data with certified inventory, booking pace, contracted acreage, freight, and replacement options. A rejected lot does not always leave the potato market entirely, but it may leave the specific seed class or destination that matters to the buyer.
Data Module
Seed Potato Lot Rejection Criteria
ObjectRules and findings that disqualify seed lots
FieldsLot, variety, class, failed criterion, status
Commercial useReplacement and acreage planning
ComparisonEligible lots and alternate classes
ImpactRejection, downgrade, redirected use
WatchpointMarket impact depends on replacement depth
Analysis
Why this matters
Lot rejection matters because the economic loss is defined by the lost use, not simply the physical tonnage. Seed redirected to a lower-value market may remain saleable while leaving a processor's planting program short.
The analytical question is how concentrated the rejected volume is by variety and class. Several small rejections can become important if they all remove the same narrow pool of planting material.
Signal 01
Usable Crop Uncertainty Index
UCUI translates crop and market complexity into a simple uncertainty signal. Higher readings indicate greater uncertainty—not necessarily higher prices.
Understand uncertainty. Anticipate risk. Act earlier.
UCUI is designed to analyze potato-industry publications and data signals across regions, varieties, weather, disease, storage, supply, and demand.
WeatherHigh
DiseaseHigh
StorageMedium
SupplyMedium
Single-day snapshot based on a scan of 11,500+ web and social signals. Get historical and real-time data by clicking the button below.
The MassGain Daily
Today’s market analysis.
A daily editorial synthesis of physical potato data, crop signals, market reporting, and what participants should watch next.
September 16, 2026Latest MassGain publication
Potato market steady for now; Russia’s smaller crop is the salient risk
Spot prices are flat and USDA terminal reports read ‘market steady,’ but a renewed forecast for a smaller Russian harvest and recent regional harvest stress leave seasonal import timing and storage losses as the key uncertainty.
Signal 02
MassGain Potato Index
Independent physical-pricing intelligence and market-trend analysis for procurement, forecasting, contracting, and scenario planning.
Core Russet Carton Median
312.45 USD/MT
Latest qualifying physical-market observation
+4.75 (+1.55%)
Price discovery for the physical potato market
MPI is designed to track physical pricing data, price trends, deltas, and divergences across regions and potato types.
Series window45 days
Current public coverageCore russet cartons
Primary source basisQualifying USDA physical rows
UnitUSD per metric tonne
Single-day snapshot based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varieties by clicking the button below.
Signal 03
MassGain Spot Reference
An independent spot reference designed for price discovery, contract discussions, procurement comparisons, and risk modeling.
Russet Burbank — U.S. Midsize
305 USD/MT
Demonstration reference format
+1.6% WoW · Confidence: High
A trusted benchmark for pricing, contracts, and risk
MSR is intended to use real transactions and verifiable physical-market data to support negotiations, price checks, contracting, and risk models.
ProductRusset Burbank
SpecificationU.S. midsize, 40–70 count
Reference typePhysical spot benchmark
StatusIn development
Based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varities by clicking the button below. Full access also includes historical data -- including depreciated NYMEX/CBOE/EEX spot references -- projections, trends, and AI-driven insights.
The MassGain Product Ladder
From insight to intelligence to action
Four integrated products built for the physical potato market, delivered through public pages, reports, exports, dashboards, and API access.
1
Content
Original research, commentary, aggregated news, and market updates.
- What matters right now?
- What is happening out there?
2
UCUI™
Usable Crop Uncertainty Index: an AI-powered signal of crop risk and market uncertainty.
- Understand uncertainty
- Anticipate risk
- Act earlier
3
MPI™
MassGain Potato Index: independent physical-pricing intelligence and trend analysis.
- Price discovery
- Regional trends
- Procurement planning
4
MSR™
MassGain Spot Reference: an independent benchmark for price discovery and risk modeling.
- Contracts
- Negotiations
- Risk models
Content + UCUI + MPI + MSR + API access
Get historical series, regional detail, constituent data, exports, alerts, and direct data access.
Overview
Who is this for?
This page is for seed growers, certification managers, commercial producers, processors, and buyers that need to understand why a seed potato lot may be rejected and what that decision means for available supply. Lot rejection criteria can include disease incidence, varietal mixture, size, grade, damage, documentation, generation, labeling, or other program-specific tolerances. MassGain helps users place an official rejection or downgrade within the broader seed market rather than treating it as an isolated quality event.
A rejected lot can remove planting material from a narrow variety or generation just as seasonal booking accelerates. The commercial impact depends on how much eligible replacement seed exists, where it is located, whether another class is acceptable, and how the decision affects contracted acreage. MassGain connects rejection outcomes with certified inventories, regional production, booking pace, variety demand, freight, and historical premiums. Growers can compare replacement options, processors can identify raw-material programs at risk, and lenders can assess whether planned acreage remains supportable. MassGain does not determine certification or overturn official decisions. It supplies the market context needed to translate rejection criteria into sourcing, pricing, and production consequences.
Use Case
A certification authority rejects several lots of a high-demand fry variety for disease and varietal purity. MassGain shows clean replacement seed is scarce locally but available from two distant regions. The processor reserves enough for core growers, reduces optional expansion acres, and revises its delivered seed-cost forecast.
FAQs
What can cause a seed potato lot to be rejected?
Disease, varietal mixture, defects, grade, generation, documentation, labeling, or other program-specific failures may trigger rejection.
Does rejection always remove the potatoes from every market?
No. A lot may be downgraded or redirected to another permitted use, depending on official rules.
How does MassGain help after a rejection?
It connects the decision with replacement availability, varieties, classes, prices, freight, acreage, and buyer demand.
Put this market intelligence to work
Get historical data, regional detail, benchmarks, alerts, exports, and API access tailored to your procurement
and market-analysis needs.
Data and Methodology
Professional market-data standards
MassGain is building transparent public market infrastructure. Each live metric will identify its date, unit, coverage, methodology, and source basis.
Data provenance
MassGain uses public, licensed, contributed, and independently derived physical-market information. Source availability and publication schedules vary.
Timing and revisions
Figures may reflect the latest available observation rather than a same-day transaction. Source data and MassGain calculations may be corrected, restated, or revised.
Not transactional pricing
MassGain figures are informational reference values and do not constitute executable bids, offers, settlements, or guarantees that a transaction can occur at the displayed value.
No individualized advice
Content and data are provided for informational and analytical purposes and do not constitute financial, investment, legal, trading, or individualized procurement advice.
Independent publication
Certain observations may be derived from USDA reports. MassGain is independent and is not affiliated with or endorsed by the USDA.
Commercial use and licensing
Public display does not grant rights to reproduce, redistribute, republish, or incorporate MassGain indices or references into commercial products or contracts without authorization.