Prioritize strong storage candidates
Identify varieties or lots with stronger inherent potential to retain processing quality during extended storage.
Biochemical markers and crop-quality advisory
Biochemical markers for storage and processing quality
AgriSACUSA provides scientific advisory support for evaluating storage-related quality change, reducing-sugar formation potential, and processing-quality risk. The work began in potato and may support exploratory applications in other crops where carbohydrate metabolism, storage behavior, and processing quality affect commercial value.
The industry challenge
Storage decisions must balance quality, dormancy, shrinkage, and disease risk
Potato storage managers routinely monitor fry color and sugar levels, but those measurements largely describe quality at the time of testing. They do not always provide a forward-looking assessment of how a field, lot, or variety may perform during storage.
Biochemical-marker information can add another layer of evidence by helping characterize inherent cold-induced sweetening risk and the likely ability of potatoes to retain acceptable processing quality under different storage conditions.
Application 1
Support for growers and storage managers
Marker-informed assessment can help organize lots and varieties according to expected storage behavior and processing-quality risk.
Match storage duration to risk
Support decisions about which lots may be better suited for intermediate storage and earlier processing.
Recognize higher-risk material
Flag lots that may warrant shorter storage, closer monitoring, or adjusted management.
Potential decision areas
- Storage-duration planning for different fields, lots, and varieties
- Prioritization of lots for long-, medium-, or short-term use
- Interpretation of processing-quality risk alongside fry color and sugar data
- Planning of storage temperature, reconditioning, and monitoring strategies
Biochemical markers are decision-support tools. Final storage recommendations should consider variety, crop history, field environment, maturity, disease status, and direct quality measurements.
Evidence over time
Marker classes designed to reflect stable biological differences
The biochemical-marker approach was developed from research across genetically diverse potato material and evaluated over multiple years. The underlying concept is that stable biochemical characteristics can help distinguish potatoes with stronger, intermediate, or weaker resistance to cold-induced sweetening.
This creates an opportunity to complement repeated end-point quality testing with information about the biological potential of a variety or clone.
Use biochemical insight to move from simply measuring current quality toward anticipating storage behavior and directing management attention where it is most needed.
AgriSACUSA advisory perspective
Application 2
Support for marker-informed crop-quality and variety-development decisions
Breeding programs evaluate very large populations and discard most material during the earliest generations. Better parent choice and earlier selection can improve the efficiency of that process.
Parent selection
Use biochemical-marker information to help identify germplasm, varieties, lots, or breeding material with stronger potential for desirable storage and processing characteristics.
Early-generation screening
Identify promising progeny sooner and reduce the number of low-potential clones carried through costly multi-year evaluations.
Focused advancement
Concentrate storage trials, field testing, and processing-quality evaluation on material with stronger supporting evidence.
Time and cost efficiency
Improve selection efficiency, reduce avoidable testing, and focus resources on material with stronger storage and processing-quality potential.
Published and industry-facing work
A practical concept that began in potato and can guide broader crop-quality discussions
The biochemical-marker work has been presented through peer-reviewed research and an industry article in Spudman. The industry article explained potential uses in storage management, parent selection, early-generation screening, and national variety-development programs. Potato remains the strongest proof-of-concept, while broader applications may be explored in crops where sugar metabolism and storage or processing quality are commercially important.
Industry article: Sanjay K. Gupta, “Prospective Potatoes: New technology identifies CIS traits in varieties,” Spudman, May/June 2016.
AgriSACUSA can support
- Scientific review of potato storage and processing-quality data
- Marker-informed pilot and validation planning
- Breeding-program and early-selection strategy
- Grower, storage, processor, or investor technical discussions
- Commercialization and service-model assessment