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| Publication Type:
| Report |
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| Material Type: | Thesis |
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| Monographic Author(s): | Fischer, James Alan |
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| Author Affiliation: | Michigan State University |
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| Monograph Title: | An Evaluation of High Temperature Effects on Annual Bluegrass (Poa Annua L.), 1967. |
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| Publishing Information: | M.S. Thesis: Michigan State University |
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| # of Pages: | 49 |
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| Collation: | [2], v, 42 pp. |
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| Related Web URL: | https://d.lib.msu.edu/etd/14780
Last checked: 11/13/2024
Notes: Item description page
https://books.google.com/books?id=wo1hnjEiE58C&hl=en
Last checked: 11/13/2024
Notes: Item description page
https://catalog.hathitrust.org/Record/102543492
Last checked: 11/13/2024
Notes: Item description page |
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| Keywords: | TIC Keywords: Poa annua; Temperatures; Heat injury; Vertical shoot growth; Root growth; Temperature stress; Temperature response; Cells
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| Abstract/Contents: | "The effects of high temperature on Poa annua were studied in a specially designed wind tunnel chamber. Wind speed in the chamber was 11.4 miles per hour, the relative humidity was approximately 100 percent and temperature treatments ranged from 37.2° C to 44.9° C. Exposure times varied from 10 minutes to 12 hours. Injury was evaluated by gross observations and a histological technique. High temperature resulted in a systematic injury to plant tissue. Injury occurred first at the junction of the leaf sheath and leaf blade of all affected leaves. With a longer exposure time or higher temperatures, a longer period of time was required for leaf growth to recommence. The rate of elongation and total elongation were decreased with increasing severity of treatment. With increasing severity of treatment, fewer tillers and roots were produced from the lower portion of the crown. These roots were shorter, more spindly and more highly branched than roots of normal plants. The order of cellular changes observed was protoplasmic granulation, protoplasmic coagulation, cell wall breakdown and total cell collapse. Kill was a function of exposure time. A much shorter period of time was required to obtain 50 percent kill at higher temperature than at lower temperatures." |
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Library of Congress
Subject Headings: | Bluegrasses; Annual bluegrass -- Testing; Poa; Pâturins |
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| Language: | English |
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| References: | 25 |
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| See Also: | See also related article, "[Comments on turfgrass research, 1967]" Golfdom: Incorporating golf business, 42(2) February 1968, p. 18, 76, 78, 82, 85-86, R=196699. R=196699 |
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| Note: | "A Thesis Submitted to Michigan State University in Partial Fulfillment of the Requirements for the Degree of Master of Science"
"Department of Crop Science"
Advisors: J. B. Beard, C. R. Olien, and C. M. Harrison
Includes "Dedication"; p. ii
Includes "Acknowledgements"; p. iii
Includes "List of Figures"; p. v
Includes "Appendix"; pp. 38-42
Pictures, b/w
Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fischer, James Alan 1967. An Evaluation of High Temperature Effects on Annual Bluegrass (Poa Annua L.). M.S. Thesis: Michigan State University. |
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About WorldCat
Accession number: 37243757
Accession number: 1000300641
Accession number: 1428181005 Note: Digital access |
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MSU catalog number: folio.in00002150998 |
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