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Web URL(s): | https://www.jstor.org/stable/23433237?seq=1 Last checked: 04/15/2016 Access conditions: Item is within a limited-access website https://www.jstor.org/stable/pdf/23433237.pdf Last checked: 04/15/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Elias, Sabry;
Garay, Adriel;
Brown, Dale |
Author Affiliation: | Seed Laboratory, Oregon State University, Corvallis, OR |
Title: | Germination of perennial ryegrass florets with caryopses less than one-third the length of the palea |
Section: | Seed tech notes Other records with the "Seed tech notes" Section
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Source: | Seed Technology. Vol. 25, No. 1, 2003, p. 35-40. |
Publishing Information: | Ithaca, New York: Association of Official Seed Analysts and Society of Commercial Seed Technologists |
# of Pages: | 6 |
Keywords: | TIC Keywords: Caryopses; Cultivar evaluation; Florets; Germinability; Lolium perenne; Palea
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Abstract/Contents: | "It has been long debated among seed analysts whether to define caryopses (dry, indehiscent one-seeded fruit, as in grasses) with some degree of endosperm development as pure seed or inert matter. This study was conducted to evaluate the germinability of perennial ryegrass seed (Lolium perenne L.) that contain caryopses less than one-third the length of the palea and compare them with seed that contain caryopses at least one-third the length of the palea. Random samples from forty seed lots representing two cultivars harvested in 1999, 2000, and 2001 were examined. Florets with caryopses having some degree of endosperm development were separated from each sample and germinated following the AOSA Rules for Testing Seeds. One hundered single florets with caryopses one-third the length of the palea or more from each sample were also germinated as control checks. The germination of seeds with caryopses less than one-third the length of the palea was 0.33%, compared to 92% for seeds with more than one-third the length of the palea. The results suggested that florets with caryopses less than one-third the length of the palea should not be classified as pure seed, but should be classified as inert matter. If the AOSA Rules were changed, it would result in uniformity between the AOSA and ISTA Rules regarding this standard. In addition, including such seed in the inert matter of a sample would result in increasing the germination percentage." |
Language: | English |
References: | 4 |
Note: | Tables Figures |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Elias, S., A. Garay, and D. Brown. 2003. Germination of perennial ryegrass florets with caryopses less than one-third the length of the palea. Seed Technology. 25(1):p. 35-40. |
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| Web URL(s): https://www.jstor.org/stable/23433237?seq=1 Last checked: 04/15/2016 Access conditions: Item is within a limited-access website https://www.jstor.org/stable/pdf/23433237.pdf Last checked: 04/15/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b3628131 |
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