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DOI: | 10.21273/HORTSCI.36.2.365 |
Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/36/2/article-p365.xml?rskey=PI7CDU Last checked: 11/15/2019 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Heckman, Neil L.;
Horst, Garald L.;
Gaussoin, Roch E.;
Young, Linda J. |
Author Affiliation: | Heckman: Graduate Research Assistant; Horst: Professor; Gaussoin: Associate Professor, Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE; Young: Professor, Department of Biometry, University of Nebraska-Lincoln, Lincoln, NE |
Title: | Heat tolerance of Kentucky bluegrass as affected by trinexapac-ethyl |
Section: | Reports: Turf management Other records with the "Reports: Turf management" Section
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Source: | HortScience. Vol. 36, No. 2, April 2001, p. 365-367. |
Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
# of Pages: | 3 |
Keywords: | TIC Keywords: Sod; Sod storage; Heat; Temperatures; Sod quality; Trinexapac-ethyl; Poa pratensis; Heat resistance; Problem-solving
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Cultivar Names: | Midnight; Huntsville |
Abstract/Contents: | "Heat accumulation during storage of sod may reach lethal temperatures within 4 days, decreasing sod quality. Treatment with trinexapac-ethyl reduces heat accumulation during sod storage. However, heat tolerance of grasses treated with trinexapac-ethyl has not been documented. Our objectives were to: 1) determine the lethal temperatures for Kentucky bluegrass (Poa pratensis L.); and 2) identify the effect of a single application of trinexapac-ethyl on heat tolerance. Experimental design was a randomized complete block with three replications and a two (trinexapac-ethyl vs. control) x two (cultivars) factorial arrangement of treatments. Ten days after chemical treatment, Kentucky bluegrass sprigs were exposed to heat stress for 4 days in a temperature gradient block under low vapor pressure deficit. Treatment with trinexapac-ethyl at 0.23kg·ha-1 reduced heat tolerance. Temperature needed to kill 50% of the population was 35.5°C for treated vs. 36.1°C for nontreated grass. Trinexapac-ethyl is in the same chemical family as the cyclohexanedione herbicides that interfere with lipid syntheses in grasses. This may be a reason for the slight decrease in heat tolerance. The practical value of trinexapac-ethyl treatment in reducing heat accumulation during storage of sod may be partially negated by a decrease in heat tolerance." |
Language: | English |
References: | 24 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Heckman, N. L., G. L. Horst, R. E. Gaussoin, and L. J. Young. 2001. Heat tolerance of Kentucky bluegrass as affected by trinexapac-ethyl. HortScience. 36(2):p. 365-367. |
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| DOI: 10.21273/HORTSCI.36.2.365 |
| Web URL(s): https://journals.ashs.org/hortsci/view/journals/hortsci/36/2/article-p365.xml?rskey=PI7CDU Last checked: 11/15/2019 Requires: PDF Reader |
| MSU catalog number: SB 1 .H64 |
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