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Purdue-Indiana Seed Industry Forum. Post-Harvest Seed Quality Dirk E. Maier Richard Stroshine Agricultural & Biological Engineering Linda Mason Entomology Charles Woloshuk Botany & Plant Pathology Post-Harvest Education & Research Center Purdue University November 18, 2005.

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purdue indiana seed industry forum

Purdue-Indiana Seed Industry Forum

Post-Harvest Seed Quality

Dirk E. Maier

Richard Stroshine

Agricultural & Biological Engineering

Linda Mason

Entomology

Charles Woloshuk

Botany & Plant Pathology

Post-Harvest Education & Research Center

Purdue University

November 18, 2005

post harvest education research center
Post-Harvest Education & Research Center
  • Basic and applied research
  • Educational resource materials
  • Hands-on training
  • Distance learning
  • Diagnostic services
  • Extensive technical assistance
  • Target Audience:

Grain producers, handlers and processors; allied equipment, technology & service suppliers.

PHERC includes a fully functional grain handling center and a new 16-bin state-of-the-art pilot facility as well as four on-campus laboratories (Grain Quality Lab, Physical Properties Lab, Mycotoxin Lab, and Stored Product Pests Lab.

indiana soybean end use quality traits initiative
Indiana Soybean End-Use Quality Traits Initiative*

Project Goal:

Help Indiana soybean growers and seed producers identify the best varieties that will consistently yield the most bushels and contain maximum amounts of end-use quality traits.

*Currently sponsored by the Indiana Soybean Board; in collaboration with ICIA

benefits to indiana soybean growers seed producers
Benefits to Indiana Soybean Growers & Seed Producers
  • Identification of preferable varieties that add value and capture premiums
  • Identification of varieties that contain new traits in higher amounts consistently
  • Access to independent & objective soybean quality analysis laboratory
  • On-line soybean end-use quality database
  • Economic impact through premiums and market access
illinois indiana soybean quality rewards program
Illinois/Indiana Soybean Quality Rewards Program
  • ADM and Bunge facilities in Illinois
      • Requires enrollment (Jan 1-Mar 1); limited to 20,000 acres
      • Bunge in Danville for IN farmers
  • CGB in Mt. Vernon, IN
      • No enrollment; no limit on bushels
potential project end use quality traits initiative
Potential Project –End Use Quality Traits Initiative
  • Purdue soybean (and corn) variety performance trials are one of the few in the nation that still do not include end use traits analysis
    • Report agronomic performance only
  • Indiana seed industry needs to partner with Purdue to assure that varieties in the performance trials are representative of the commercial varieties sold and that these varieties are tested for key end use traits
    • Soybean crushing (protein, oil)
    • Ethanol processing (fermentable starch)
    • Wet corn milling (extractable starch)
    • Dry corn milling (kernel hardness)
purdue research 1980 90 quality traits of corn hybrids
Purdue Research (1980-90) – Quality Traits of Corn Hybrids
  • Resistance to fungal invasion – certain hybrids perform better in low temperature drying systems
  • Drying rate variations – fast drying hybrids require 10% less energy for high temperature drying
  • Breakage susceptibility – hybrids differ in amount of fine material generated during handling
  • Dry Milling Quality – yield of flaking grits varies among hybrids
potential project end use quality traits initiative1
Potential Project –End Use Quality Traits Initiative
  • Goal:

Quantify differences in Corn Hybrid Properties Affecting Conditioning and Processing*

  • Hybrids:

Yellow “normal”, Yellow Food Corn, White Corn, High Oil, Waxy, High lysine, Highly fermentable corn

  • Properties

Water absorption rate, kernel density, pericarp thickness and structure, germ to endosperm ratio, kernel hardness, kernel dimensions and shape, fiber content, color (proxy for carotenoid)

  • Reduction in Viability caused by High Temperature Drying

*Purdue and GMPRC (Manhattan, KS) NC-213 Proposal

potential project rapid assessment of seed viability and vigor
Potential Project – Rapid Assessment of Seed Viability and Vigor
  • Goals

- Reduce time required for viability testing

- Sorting non-viable from Viable seeds

  • Approaches to be investigated:

- Respiration monitoring (CO2 or O2:CO2)

- NIR of individual kernels for rapid assessment

of germ viability

- Biochemical Indicators of seed viability

preliminary data respiration co 2 measurements on individual kernels
Preliminary Data – Respiration (CO2) Measurements on Individual Kernels

Good quality seeds

% CO2 in the chamber

Seeds subjected to accelerated aging

Time (hrs)

Note: The distinctions related to accelerated aging are not always this clear. Incubation temperature was 23C.

potential projects post harvest seed quality
Potential Projects – Post-Harvest Seed Quality
  • Processing Value of Indiana Soybean and Corn Varieties
      • Impact on producer premiums
  • Corn Properties Affecting Conditioning and Processing
      • Impact on energy use and savings
  • Rapid Assessment of Seed Viability and Vigor
      • Impact on seed inventory management