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| Web URL(s): | http://www.jstor.org/stable/pdf/23433408.pdf
Last checked: 01/29/2016
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Curry, Daniel |
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| Author Affiliation: | Oregon State University Seed Services, Oregon State University, Corvallis, OR |
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| Title: | Comparison of perennial ryegrass purity by allelic discrimination, AOSA and USDA growout, and fluorescence test |
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| Section: | Abstracts
Other records with the "Abstracts" Section
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| Meeting Info.: | Des Moines, Iowa: May 20-24, 2012 |
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| Source: | Seed Technology. Vol. 34, No. 2, 2012, p. 285-286. |
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| Publishing Information: | Ithaca, New York: Association of Official Seed Analysts and Society of Commercial Seed Technologists |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Allelism; Cultivar evaluation; Lolium multiflorum; Lolium perenne; Percent living ground cover; Seed contamination
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| Abstract/Contents: | "The objective of this study was two-fold: first, to determine the percent annual ryegrass (Lolium multiflorum Lam.) contamination by allelic discrimination (AD) on spiked perennial ryegrass (Lolium perenne L.) samples (study one); and second, to compare the AD perennial ryegrass purity results with various methods using the fluorescence test, two growout tests and an extended growout test (study two). Gulf annual ryegrass seed was placed into eight seed packets, with perennial ryegrass seed added to contaminate the 400 seed samples at levels from 0 to 10%. Nine samples from seed industry lots were split into 5 g sister samples and sent to three laboratories for testing using various methods depending on the laboratory: the AD test, fluorescence test, the AOSA growout test, and the USDA 400-seed growout test. Study one showed that AD test results were very similar to the initial spiking levels. Study two showed the AD test results were within tolerance of the USDA 400-seed growout test in 7 of the 9 samples. The AD and AOSA seed growout test were within tolerance 5 of 9 times, and the AOSA seed growout test was within tolerance of the USDA 400-seed growout test 9 of 9 times. Fluorescence test results were comparable to the optional growout and genetic test results, which indicated that the more contaminated a perennial ryegrass sample was, the further apart were the results. The AOSA growout test was extended to 70 days in the greenhouse to show that results can vary in the growout test if plants are finaled beyond the recommended time." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Curry, D. 2012. Comparison of perennial ryegrass purity by allelic discrimination, AOSA and USDA growout, and fluorescence test. Seed Technology. 34(2):p. 285-286. |
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| Web URL(s):
http://www.jstor.org/stable/pdf/23433408.pdf
Last checked: 01/29/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website
Notes: Item is within a single large file |
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MSU catalog number: b3628131 |
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