Testing Services

germinatorHaving operated continuously since its foundation in 1909 as an official laboratory in a state that produces a broad range of species, the OSU Seed Lab has gradually become a one-stop seed testing lab for a rich diversity of species and tests. We use cutting-edge equipment and methods for every test and use an advanced electronic information system to serve our customers. Most of our samples are from within Oregon, but we receive many samples from other states and overseas.

Please securely package samples to be tested, include a testing request form, and mail to the lab. Local customers are welcome to drop off samples at the lab; we have an after-hours sample drop box next to the front door. Clients sending live material: please call for instructions.


We offer a full complement of purity testing services based on both AOSA and ISTA seed testing rules. We can also classify purity results based on schemes used for OECD, HVS, Australia, or Canada. Digital imaging is available for any purity component.


AOSA Purity Test This test determines the percentage by weight of pure seed, other crop seeds, inert matter, and weed seeds in a test sample. This test can be conducted on commercial, certified, official, and other samples. When a customer orders an AOSA purity test, the lab also conducts and reports an all-states noxious weed exam.

AOSA Noxious Weed Exam This test reports the name and number of any noxious weed seeds found in a test sample (minimum 25,000 seeds) based on the Federal all-states noxious-weed seed requirements. A noxious exam for a particular state such as Hawaii or Wisconsin can be performed as well. The test does not report other seeds that are not in the noxious list. The noxious exam is required by the Oregon Certification Program and is automatically conducted when an AOSA purity is ordered.

Undesirable Grass Seeds (UGS) The UGS test is an examination of a test sample (minimum 25,000 seeds) for ten species deemed undesirable in seven eastern states (MD, VA, WV, PA, NJ, NH and DE). These species are bentgrass, bermudagrass, annual bluegrass, rough bluegrass, meadow fescue, tall fescue, orchardgrass, redtop, timothy, and velvetgrass. When marketing turf varieties into the listed states, the seed label must list the name and number per pound or ounce of UGS species found in a test sample under the heading "Noxious Weed Seed" or "Undesirable Grass Seed". This test can be conducted on commercial, certified, or official samples.

Oregon Sod Quality Exam (SQ) (Certification eligible samples only.) Search for specific crops and weeds as defined by the program. Sod tests are stopped if disqualifying contaminants or amounts of contaminants are found. Please see the Oregon Sod Quality page for more information.

AOSA Crop & Weed Exam (CW) This exam provides a complete listing of all species (both crops and weeds) found in a test sample (minimum 25,000 seeds) and categorizes the seeds as crop seeds or weed seeds. Both the actual number of seeds found in a test sample (e.g., 1 seed in 50g) and the rate of occurrence (number of seeds per pound) are reported. Because the CW test provides complete listing of all the seeds found in a test sample, Oregon Sod Quality and UGS reports can be generated in most cases without testing the sample again, saving time and money for customers. This test can be conducted on commercial, certified, official or other samples. It is required for Certified AOSA/EC basic and pre-basic tagging, Canada testing, and WA Sod Quality.

ISTA Purity Test This test determines the percentage by weight of pure seed, other seeds, and inert matter. The minimum sample size is 2500 seeds (see the ISTA International Rules for Seed Testing for more details). ISTA Orange and Blue Certificates can only be issued for species listed in the ISTA Rules, Chapter 2, Table 2A. 


ISTA Other Seed Determination (OSD) (also called Determination of Other Seeds by Number) This test determines the number and identity of other seeds in a test sample. The extent of this determination is referred to as the scope of the test. The scope depends on customer needs: *ISTA Accredited Test 

Soil Exam Determines the percentage of soil particles in the working sample. Can be performed as a sequential test (i.e. other tests will be done only if soil exam results are within a certain specification).

Pest and Disease Exam The working sample is examined for a list of pests and diseases. Affected seeds are removed, identified, weighed and reported by percentage.

Orobanche Test Determines the presence of Orobanche seeds in a submitted sample of red clover using a dry method. This test requires its own sample.

Ergot A test to detect Ergot (Claviceps purpurea) in a sample. The ergoted seeds are removed, weighed and reported as percentage.

Friction Separation Exam Certified alfalfa and red clover samples must be tested using a dodder mill. The material removed is examined for dodder or any other Oregon prohibited weeds. A 500g bulk examination is required for certification purposes.

Noxious/Prohibited Tests for Other Countries A test performed at customer request. The noxious weeds list varies with the country. The customer must provide a current list of noxious/prohibited weeds of the particular country.


tall-fescue-germinationGermination A physiological viability test which determines the percentage of live seeds that produce normal seedlings under favorable germination conditions. Both AOSA and ISTA require 400 seeds for germination in most cases. *ISTA Accredited Test

tetrazoliumTetrazolium (TZ) A quick biochemical viability test which determines the number of live seeds based on dehydrogenase activity in seeds. It indicates the percentage of live and dead seeds in any sample regardless of its dormancy level. The test can be performed in 24-48 hours. *ISTA Accredited Test

Fluorescence Test for Ryegrass This test requires germinated seedlings, and determines the fluorescence level of any particular ryegrass sample. It is used to estimate a potential contamination of perennial ryegrass with annual ryegrass. This test is performed on all AOSA ryegrass germinations and is used to differentiate Annual from Perennial ryegrass under AOSA rules. It is performed on ISTA samples by request and is not used in ISTA purity calculations. *ISTA Accredited Test


cold-test-cornCold Test (CT): A vigor test that indicates the potential emergence of seeds under early spring field conditions where cold and wet soils are prevalent. Used for corn, beans, peas, and vegetables that are planted in the early spring. 

Accelerated Aging (AAT): A vigor test, where seeds are stressed with high temperature and relative humidity for a period of time prior to the germination test. High quality seeds tolerate such stress conditions and retain their capabilities to produce normal seedlings when germinated.

Conductivity Test (CT): A test to measure the integrity of the cell membranes. Low vigor seeds have leaky membrane structure and release electrolytes into the soak-water. The level of electrolytes is reflected in high electric conductivity of the soak-water.

Speed of Germination (SG): High quality seeds germinate faster than poor quality seeds.  The number of normal seedlings recorded in the first count represents the population of fast germinating seeds and thus functions as a vigor measurement (AOSA Seed Vigor Testing Handbook). The following formula is used to calculate the speed of germination (SG):

Genetic Traits and Varietal Identification


Performed in the Special Testing Unit: 

Ploidy by Cytometry: A test separating diploid and tetraploid ryegrass genotypes, or any genotypes with different chromosome numbers based on the amount of DNA in the nucleus of plant cells. This test can be performed on germinated seedlings or leaf tissue from the greenhouse or field. Currently it is being used for research projects in a broad range of crops.

Phenol Test: A quick test for cultivar identification. It is based on color reaction between phenol solution and seed coat (pericarp). It can be used for wheat, barley, oat, ryegrass and bluegrass.


 When a test sample is compared with a pure control check, it can be determined if the sample is pure or mixed with other cultivars.

Clearfield Wheat Bioassay: Determine the percentage of the “Clearfield®” trait (a herbicide tolerant trait) in a population of 400 seed sample that represents a seed lot. The test is completed in approximately 10 days.

Performed in the Germination Unit: 

Fluorescence Test for Ryegrass: Determines the fluorescence level of any particular ryegrass sample. It is used to estimate a potential contamination of perennial ryegrass with annual ryegrass. This test is performed on all AOSA ryegrass germinations and is used to calculate AOSA purity results. It is performed on ISTA samples by request and is not used in ISTA purity calculations. *ISTA Accredited Test

Ammonia Fluorescence Test for Fine Fescue: A quick test to distinguish b

etween Festuca ovina and Festuca rubra. The roots of F. rubra fluoresce yellow and the roots of F. ovina fluoresce green when sprayed with at 0.5%

 solution of ammonium hydroxide. This test is performed on all AOSA fine fescue germination tests. It is performed on ISTA samples by request. *ISTA Accredited Test

Fluorescence Grow-out for Ryegrass: A test involves growing fluorescent ryegrass seedlings using a specific protocol. At the end of the prescribed test period, the plants are evaluated according to their growth habits. The data is used to make AOSA purity calculations as to the percentage of perennial and annual ryegrass in a sample. Growout results may be reported on an ISTA certificate but the results are not used in ISTA purity calculations.

growout-spring-winter-wheatVarietal Fluorescence Level (VFL): This test is required by the National Grass Variety Review Board before releasing a new ryegrass variety describing its inherited fluorescence level or to re-describe an existing variety. It involves fluorescence tests of at least 3000 seeds and a grow-out of the fluorescing seedlings following a specific protocol.

Grow-out of Other Species: A test in which seedlings are grown in greenhouse conditions until they develop characteristics that allow them to be differentiated. This is applicable to a wide range of species and is useful in conditions where normal purity determinations cannot be made with certainty.


Performed in the Purity Unit: 

Sodium Hydroxide Test for Wheat (NaOH): A chemical test used to distinguish between red and white wheat in situations where it is difficult to distinguish between the two types (i.e. when seeds have been weather-damaged, treated, or are simply hard to distinguish by the naked eye).


Pathological Tests

Performed in the Special Testing Unit:

Blackleg Testing: A test that detects the presence of Phoma lingam (Leptoshaeria maculans) on seed. The test is for Brassica species: canola, kale, turnip, cabbage, cauliflower, etc.

Endophyte: A test to detect the presence or absence of endophyte fungi (Neotyphodium spp.) in seeds. It helps growers to make decisions regarding the marketing of grass seeds for feed or turf purposes.

Mosaic Virus Testing: A test that detects the presence mosaic virus on seed. This test is for squash, tomato, pepper, cucumber, potato, and other species of  garden seed.

Performed in the Purity Unit:

Pest and Disease (P&D): The working sample is examined for a list of pests and diseases. Affected seeds are removed, identified, weighed, and reported by percentage.

Orobanche Test (OT): Determines the presence of Orobanche seeds in a submitted sample of red clover using a dry method.


Ergot: A test to detect Ergot (Claviceps purpurea) in a sample. The ergoted seeds are removed, weighed, and reported as percentage.

Oregon Sod Quality


sod-harvestingThe Oregon Sod Quality Program is managed by the Oregon Department of Agriculture Commodity Inspection Division and requires that an Oregon Certification eligible sample should pass through three parts: Purity and noxious exam, Oregon Sod Quality exam, and viability test (germination or TZ). Experimental varieties, isolation lots, and interagency lots are not eligible for Oregon Sod Quality testing or tagging. Sod quality tests are not standardized throughout the USA, so other states may have different sod test requirements. The text of the Oregon Administrative Rule that authorizes the sod program and governs standards is included below.


OAR 603-056-0145


Standards for Sod Quality Certification

(1) The seed lots submitted shall meet all standards for certification by Oregon State University.

(2) The seed standards for "Oregon Sod Quality Seed" of hard fescue, sheep fescue, blue fescue, Kentucky bluegrass, red fescue, chewings fescue, perennial ryegrass, bentgrass and tall fescue shall be as set out in Table 1.

(3) "Noxious Weed" and "Crop and Weed" analyses shall be based on a 20 gram sample for hard fescue, sheep fescue and blue fescue, 25 gram sample for Kentucky bluegrass (except a 10 gram Poa annua search), 30 gram sample for red fescue and chewings fescue, 50 gram sample for ryegrass and tall fescue, and a 2-1/2 gram sample for bentgrass. Testing shall be discontinued when results of the tests exceed the maximum limits set forth in Table 1.


Oregon Sod Quality Standards (OAR 603-56-145 table 1)
Kind Minimum
Minimum germination
Maximum other crop *1
Maximum weed *5
perennial ryegrass
98 % 90 %
0.10 % *2
0.02 %
marion Kentucky bluegrass
95 %
80 %
0.10 % *3
0.02 %
other varieties of bluegrass
97 %
80 %
0.10 % *3
0.02 %
red fescue 98 %
90 %
0.10 %
0.02 %
chewings fescue 98 %
90 %
0.10 %
0.02 %
hard fescue 98 %
85 %
0.10 %
0.02 %
sheep fescue 98 %
85 %
0.10 %
blue fescue 98 %
85 %
0.10 %
0.02 %
98 %
85 %
0.10 % *4
0.10 %
tall fescue
98.5 %
85 %
0.10 %

Australia Testing

Shipping seeds to Australia? The OSU Seed Laboratory can help you!

australiaAustralia is an important market for seeds produced in Oregon and the USA. If your seed is headed for Australia, it is important to know their requirements and how the OSU Seed Laboratory can help you.

What does Australia require?

How can the OSU Seed Lab help you?

The OSU Seed Laboratory is ISTA accredited and AQIS approved and can issue ISTA certificates and analysis reports that are accepted by AQIS. (See BICON for more information.)

If Glyceria spp. seeds are found, knowing that your seed is headed for Australia, the OSU Seed Laboratory can quickly proceed to test the Glyceria by flow cytometry.

Australia requires a special classification scheme for reporting purity results. Whether you need an ISTA Orange Certificate, ISTA Blue Certificate, or OSU analysis report, the test results will be classified according to Australia's requirements.

The OSU Seed Laboratory can issue ISTA Orange and Blue certificates or standard OSU analysis reports on the samples, depending on customer requirements and the species being tested. The sampling must be done by an authorized ISTA sampler regardless of which type of report is requested. Please contact us if you have questions.

Delivery of reports?

ISTA Certificates are mailed to the customer. Standard OSU analysis reports are provided via our website or are mailed.

Our hope is that these seed testing and reporting services help you meet the requirements of your customers and Australian authorities.

Other Tests


Performed in the Special Testing Unit:

Seed Moisture Content: This test determines the percentage by weight of moisture content in seeds. Seed moisture content affects the capacity of seeds to stay alive and maintain germinability and vigor over time. *ISTA Accredited Test

Oil and Protein: Using Nuclear Magnetic Resonance Spectrometry (NMR), we can determine oil, protein, and moisture content in seeds of various oil crops. The test is non-destructive and the machine can be calibrated for a wide range of crops. Read more.

X-ray: A test to reveal the internal tissues of seeds including any abnormalities, empty seeds, absence of embryos, mechanical and internal damages, and insect infestation. It is particularly useful for native species, trees, shrubs, and nuts, which can be observed internally without breaking the shell.

fast-green-testChemical tests to detect mechanical damage and seed coat injuries: Fast green, Ferric chloride and Indoxyl acetate tests are used to reveal mechanical injuries and physical fractures in seed coats of corn, soybeans, and other seeds.

Thermogradient Germination Test 

Performed in the Purity Unit:

Test Weight

  • Weight per bushel (lbs/bu)
  • Seed count (1000 seed wt, seeds per pound, etc) *ISTA Accredited Test

Seed weight can indicate seed size, density, and the presence of shriveled, small, less developed seeds in a lot. Depending on the variety, production site, and rainfall during the growing season, there can be significant differences in the number of seeds per pound. This test helps in determining the seeding rate.

Oil, Protein and Moisture Determination in Seeds Using NMR

We can now test seeds for oil, protein, and moisture content using NMR spectrometry, a non-destructive technology.

What is NMR is used for?

Nuclear Magnetic Resonance Spectrometry (NMR), is used for determining oil, protein, and moisture content in seeds of various oil crops. The instrument is calibrated for several oil crops including soybean, camelina, canola, meadowfoam, and euphorbia, and can be calibrated for other species as needed. Tests can be performed in whole seeds or meals.

The need for NMR

meadowfoam-fieldWith the diversification of crops in Oregon and the search for crops to be used for biodiesel production, the need to determine the oil content of such crops has emerged. In addition, the meal in some oil seeds, such as soybean, is used for feed after extracting the oil and it is useful to determine the protein content in the meal as well as in the seeds. Both the USDA and Canadian Grain Commission use NMR in determining oil seed content in oil crops.

In the past, researchers have had to send their oil seeds out-of-state for oil and protein analysis. The OSU Seed Laboratory’s recent acquisition of a Nuclear Magnetic Resonance Spectrometer means this service is now available in-state. This provides an advantage to Northwest researchers and commercial producers both in testing turnaround and in the availability of the equipment and service for conducting customized research.

The principle of the test

The oil content test estimates the amount of oil that can be extracted from seeds using an industrial extraction method. Direct pressing extracts 90-92%, whereas solvent extractions remove 97-99% of oils contained in seeds.

specialtestingThe NMR technique measures the resonance energy absorbed by hydrogen atoms in the sample. Usually oil contents are expressed based on a specific moisture basis (e.g., 8.5%, 10%, etc.). Using the NMR in measuring oil content is referenced by ISO 10565:1998 Oilseeds.

Sample size and test period

Sample size is 5-10 grams for all analyses, not for each test, (i.e., for oil, protein and moisture).  We can calibrate the NMR for a smaller amount of seeds (i.e., 1-2 grams), if needed.   It takes 24 hours to complete the test from the time of receiving the sample. The NMR is a non-destructive method, so seeds can be returned if needed. Please enclose the sample in a moisture-proof (i.e. Ziplock) bag.

Research potential

We welcome inquiries from researchers worldwide. Please feel free to contact us to discuss your research needs.

Testing Fees

The goal of the OSU Seed Lab is to provide accurate, timely and cost effective seed testing services. We value our customers and strive to keep costs as low as possible while maintaining our cutting edge high quality services. Fees reflect the amount of work needed for each test. All prices are in US dollars.  Prices are effective July 1, 2013.

Purity, Germination & TZ | Bulk Exams | Other Tests | Other Services

Purity, Germination & TZ

AOSA purity includes all-states noxious examination. ISTA purity includes ISTA certificate (Blue or Orange). Please consult our ISTA information before ordering ISTA tests. Samples requiring extra steps or those with high levels of impurities (other crops, weeds, multiple florets, inert materials) requiring more than 1 hour analyst time will be charged a prorated hourly charge based on extra time required. 10% discount on germination retests ordered January-June. ISTA TZ test requires double the amount of seeds.



Species AOSA Purity ISTA Purity AOSA Germ ISTA Germ AOSA TZ ISTA TZ

Bentgrass (Agrostis spp.) (purity incl. species sep.)

$99.00 $50.00 $47.00


$68.00 $135.00

Bluegrass (Poa spp.)

$87.00 $50.00 $49.00



$68.00 $135.00

Tall fescue (Festuca arundinacea)

$68.00 $50.00 $45.00      


$68.00 $135.00

Fine fescue (Festuca spp.) (germ incl. ammonia test)

$72.00 $50.00 $46.00


$68.00 $135.00

Orchardgrass (Dactylis glomerata)

$74.00 $50.00 $44.00


$68.00 $135.00

Annual ryegrass (Lolium multiflorum) (germ incl. fluor.)

$51.00 $43.00 $45.00


$68.00 $135.00

Perennial ryegrass (Lolium perenne) (germ incl. fluor.)

$75.00 $50.00 $50.00 $50.00 $68.00 $135.00

Mixture (per each additional kind)

$61.00  Please  Call $43.00  Please  Call $68.00 $135.00


Cereals, Legumes, Vegetables, Flowers, Natives

We offer volume discounts for germination testing of vegetable and flower seeds.  The fee is discounted proportional to the number of samples submitted: 50-99 samples 50% off; 100-199 samples 60% off; 200+ samples 70% off.

Species AOSA Purity ISTA Purity AOSA Germ ISTA Germ AOSA TZ ISTA TZ

Cereals (wheat, barley, oat, etc)

$54.00 $50.00 $41.00 $41.00 $68.00 $135.00

Alfalfa, Clover

$51.00 $50.00 $38.00 $38.00 $68.00 $135.00

Bean, pea, corn, melon, pumpkin, squash, cucumber

$41.00 $41.00 $38.00 $38.00 $68.00 $135.00

Beet, sugar and table; Swiss chard

(add $44 if sprout count requested)

$54.00 $50.00


$56.00 $68.00 $135.00


$84.00 $50.00 $38.00 $38.00 $68.00 $135.00

Carrot, celeriac, celery, dill, parsley, parsnip

$49.00 $49.00


$38.00 $68.00 $135.00

Chive, leek, onion, spinach, okra

$40.00 $40.00 $38.00 $38.00 $68.00 $135.00

Eggplant, lettuce, pepper, tomato

$49.00 $49.00 $38.00 $38.00 $68.00 $135.00


$61.00 / Hour $61.00 / Hour $50.00 $50.00 $68.00 $135.00

$61.00/ Hour

$61.00/ Hour $56.00 $56.00 $68.00 $135.00

*Varies by species.  Please call.

Trees and Shrubs

Species AOSA Purity ISTA Purity AOSA Germ ISTA Germ AOSA TZ ISTA TZ

Trees and Shrubs - (**20% germination discount January-May)

$41.00 $41.00 $55.00 Please Call $68.00 $135.00

AOSA multiple stratification (add'l 200 seeds)

    Additional $24.00      

100 seed germination test (any tree/shrub species)



AOSA and ISTA Bulk Examinations

Test (tests are AOSA unless otherwise indicated)


Crop and Weed (CW) (most UGS & Sod reports can be generated from CW without add'l testing)

    Effective July 1, 2015, there is a 10% discount when ordered with purity)


Undesirable Grass Seeds (UGS) (10% discount when ordered with purity)


Noxious Weed (N) (all states except Hawaii and UGS)


Oregon Sod Quality - (charges vary based on amount searched)

$47.00 - $194.00

Pest and Disease (dry seed inspection) (P&D)


Soil exam (S)


Crop exam $77.00
Weed exam $77.00
ISTA Complete Other Seed Determination (OSD) - equivalent to AOSA CW $77.00
ISTA Limited OSD - see price for equivalent AOSA exam varies
ISTA Reduced and Reduced-Limited OSD - calculated based on quantity and type of test varies
Bentgrass species separation $61.00
25 gram Poa annua and Poa trivialis search - in Kentucky bluegrass $194.00
25 gram CW - in Kentucky bluegrass (10% discount when ordered with purity) $194.00
50 gram CW - in Orchardgrass and Fine fescues (10% discount when ordered with purity) $128.00
Ergot of Claviceps purpurea search on standard sample size $55.00

Bulk cereal exam for other grains (required by Seed Certification) (per 500g test)


Friction separation (bulk exam for dodder on Certified alfalfa and red clover - 1 lb sample minimum)


Australia CW

$77.00 min.

Canada CW - in Kentucky bluegrass


Canada CW - in bentgrass


Canada CW - in other species

$77.00 min.

Mexico weed exam $77.00


Other Tests and Services (prices for all species unless otherwise indicated)

Test or Service (please consult ISTA information to determine which tests can be reported on an ISTA Certificate)


Tests Performed in the Special Testing Unit 


Seed Moisture


Ploidy by cytometry for Ryegrass


Ploidy by cytometry for Glyceria sp. (mannagrass)

$44.00 - $125.00

Protein, oil and water analysis - example: one sample tested only for protein is $11, for protein and oil is $22, for protein, oil and water is $33. $11.00/test/sample

X-ray (AOSA only)


Endophyte (immunoblot assay - 100 seeds)


Endophyte on Tillers $218.00

Varietal identification tests (Phenol, NaOH, etc for wheat, barley, oat, ryegrass, bluegrass)


Clearfield Wheat bioassay


Vigor tests (cold test, accelerated aging, conductivity, etc) $58.00

Tests Performed in the Germination Unit 

Seedling vigor classification test (beans) $58.00
Sprout count (beets) $65.00
Fluorescence test on ryegrass contaminants found in purity tests. Fee varies by number of seeds grown. $20 minimum up to 10 seeds, $30 for up to 15 seeds, more than 15 seeds: $46 maximum. $22.00 - $50.00

Grow-out of fluorescent ryegrass seedlings, up to 40 fluorescent seedlings (about 10% test fluorescence)


Grow-out of ryegrass, additional fluorescent seedlings


Grow-out, non-ryegrass (based on number of seedlings to be grown out) $55.00 - $217.00
Grow-out, crops/weed seed contaminants found in tests (varies by number/type of seeds, $22 minimum/test) $22.00 - $327.00

Varietal Fluorescence Level (VFL) in perennial ryegrass, three lots


VFL, annual ryegrass, three lots $1193.00
VFL, additional charge for varieties fluorescing over 10% Hourly

VFL, each additional lot


Cereal grow-out (to distinguish winter from spring varieties)


Tests Performed in the Purity Unit 

Seed Weight (incl. 1000 seed weight, number of seeds per pound) $31.00
Seed Weight for most species when required with a purity $15.00
Broomrape (Orobanche minor) in red clover and other species (dry method) $104.00
Mill check Hourly

Soil seed-bank (search for seeds in soil, compost, etc)


Noxious weed search in animal feed pellets


Noxious weed search in bird seeds


Search for foreign materials Hourly
Special handling charge for unusual samples $22.00

Digital image by email of requested contaminants (subject to hourly charge; varies according to number and size of contaminants and complexity of image)

Hourly (Minimum of $31)

Research projects, specialized and custom testing

Please Call



Other Fees: Rush, Reporting, Certificates



Rush (purity results in 24-48 hours)


Priority Rush (call first)


Produce UGS or Sod report from existing CW


Revision of report (example - correction of customer error on sample certificate)


Conversion of report (paperwork only) requiring no additional testing more info


Conversion of report requiring additional testing more info


EC supplemental report for certification $11.00

Additional copy of report


ISTA Blue or Orange Certificate - duplicate or provisional


Revision of ISTA Certificate  $22.00

Cancellation of tests - fee is proportional to work completed prior to cancellation

$17.00 min.

Surcharge on out-of-country samples (e.g. to cover wire transfer fees)

Hourly charge (applies to especially contaminated or extraordinary samples; also used for custom work such as sample preparation or special bulk searches). 


Research projects, specialized and custom testing Please Call 


Books and Seed Collections



Common Oregon Crop and Weed Seeds (full-color with coil binding) $55.00
Reprint of USDA Handbook 30 (paperback)
Reprint of plates from USDA Handbook 30 (coil binding)
Reprint of USDA Handbook 219 (paperback)
Seed herbarium (100 most common crop & weed species) $100.00

Testing Flow Report

Monday April 24, 2017

Germination Unit is planting samples from April 21

Purity Unit is completing regular purity samples from April 21

 When requesting rush service, the turnaround time will be 24-48 hours.  Additional fee applies.

Numbers represent those samples (new + retests) that are in the purity testing process.

Date Sample or Test Request Received
Remaining Samples
April 21  21



Daily sample numbers include samples that arrived late in the day.

Number of samples completed by the purity unit Friday (April 21) including rushes:22

Test Conversions

Conversions can save time and money. 

Crop and weed exams can be converted to sod quality (SQ), UGS, or Canada certificates in most cases. For example, crop and weed exam on Tall fescue can be converted to SQ, UGS, or Canada certificate with no additional testing required. 

SQ can be converted to UGS and crop and weed certificates with no additional testing.

AOSA/EC to AOSA: Paperwork only

AOSA to AOSA/EC: Paperwork only