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November 2009 Update
The following activities are in progress at the seed lab and seed services:
Seed Services ryegrass study
The OSU Seed Services is gathering “problematic perennial ryegrass samples” to determine the percentage of annual type contamination using the two genetic tests developed by GGT and BDI laboratories. In addition, the OSU Seed Laboratory will determine the percentage of annual type using the grow-out test to study the correlation between the genetic results and the morphological development of seedlings in the grow-out test. Some perennial ryegrass samples will be spiked with known percentage of annual ryegrass to be included in the tests as well.
If someone has a problematic ryegrass sample that would like to have it in the study, please send two pounds to Dan Curry, 351B Crop Science by November 20, 2009.
The objective of the study is to quantify the percentage of annual contamination in perennial seed lots using the DNA tests developed by BDI, GGT, and compare the results to the morphological development of fluorescent seedlings in the grow-out test for the corresponding samples.
Seed Lab acquires NMR for oil, protein and moisture analysis
The OSU Seed Laboratory has acquired a Nuclear Magnetic Resonance (NMR) Spectrometer with a grant obtained from the Research Equipment Reserve Fund (RERF). This enables the lab to determine oil, protein and moisture content on seeds. The equipment is calibrated for several oil crops including canola, camelina, soybean, meadowfoam, and euphorbia. The NMR can be calibrated for other species as needed. Tests can be performed in whole grains or meal.
Annual ryegrass test duration referee planned for 2010
September 29th, the OSU seed lab reported to the SSAC of OSC, that the current germination and fluorescence testing of annual ryegrass takes too long time (one week of chilling and two weeks of germination). Technically, the overall length of time can be reduced if the testing rules allow it. Many samples achieve maximum germination and fluorescence earlier than the currently prescribed time. However, the testing rule does not allow ending the test. The SSAC supported the need to do research to determine if the testing rule can be changed to shorten the time. The lab will initiate inter laboratory referee in the first part of 2010.
Tall fescue blowing procedure update
After discussion with the SSAC, the OSU Seed Lab submitted a proposal to use the uniform blowing procedure of tall fescue as a replacement to the current visual/manual method. This approach (of replacing the current method rather than using as an alternative) was the wish of most laboratories and some industry members as well as AOSA members.
Seed Quality Workshop in January 2010
The OSU Seed Lab will offer a two-day workshop for seed farmers, growers, cleaners, marketers and users. The program includes seed quality and seed quality management principles, weed control in production fields, assessment and recognition of inert material and crop and weed seeds, seed cleaning technologies, sampling, concepts and testing of dormancy, viability and vigor, principles of seed storage and critical tests for wheat and vegetables.
The workshop will be offered January 28-29, 2010. It will be repeated February 4-5 if the first session fills up. Please see the workshop announcement for complete information and registration instructions.