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| Web URL(s): | https://www.crops.org/publications/cs/pdfs/36/5/CS0360051290
Last checked: 08/05/2010
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| Publication Type:
| Refereed |
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| Author(s): | Miller, Grady L.;
Dickens, Ray |
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| Author Affiliation: | Environmental Horticulture Dep., Univ. of Florida, Gainesville, FL; Agronomy and Soils Dep., Auburn Univ., Auburn University, AL |
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| Title: | Potassium fertilization related to cold resistance in bermudagrass |
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| Section: | Turfgrass Science
Other records with the "Turfgrass Science" Section
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| Source: | Crop Science. Vol. 36, No. 5, September/October 1996, p. 1290-1295. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Cynodon dactylon; Cynodon transvaalensis; Potassium; Application rates; Cold resistance
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| Cultivar Names: | Tifdwarf; Tifway |
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| Abstract/Contents: | "Applications of high rates of potassium are often made in an attempt to increase winter hardiness of bermudagrass [Cynodon dactylon(L.) Pers.] turfs. Research was conducted to evaluate two bermudagrass cultivars field-grown on a high sand based soil mix and a native soil for the influence of applied K on cold resistance. A field study with six K rates ranging from 0 to 390 kg ha ā»^D] 1 growing month ā»Ā¹ were applied to 'Tifdwarf' bermudagrass [Cynodon dactylon(L.) Pers. x C. transvaalensis Burtt Davy] established on a sand-peat (9:1 by volume) and Uchee loamy sand (loamy, siliceous, thermic Arenic Hapludult) during 1992-1994. Potassium chloride or Kā SOā were compared as sources of K and were applied with twice monthly N applications. Elemental soil and plant leaf tissue concentrations were measured periodically during the course of the study. By means of a electrolyte leakage (EL) method, predicted lethal temperatures were identified for rhizome samples removed from the field monthly from October through March of 1992-1993 and 1993-1994. Lethal temperatures estimated by EL were compared with those obtained by means of a recovery growth method. Extractable K in the growth media (12-204 kg K ha ā»Ā¹) and leaf tissue K concentrations (8.9-17.3g K kgā»Ā¹ DM) increased with increasing K rates. Application of high rates of K had no effect on predicted lethal temperatures or plant regrowth. Lethal temperatures for Tifdwarf ranged from -5.8 to -7.0Ā° C, whereas those of Tifway varied from -6.8 to -8.4Ā° C. High K rates appear to not increase bermudagrass rhizome cold resistance; therefore, there may be no benefit to using rates beyond those that provide sufficient K levels for normal growth. |
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| Language: | English |
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| References: | 21 |
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| See Also: | Other items relating to: Potassium |
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| Note: | Figures
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Miller, G. L., and R. Dickens. 1996. Potassium fertilization related to cold resistance in bermudagrass. Crop Sci. 36(5):p. 1290-1295. |
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| Web URL(s):
https://www.crops.org/publications/cs/pdfs/36/5/CS0360051290
Last checked: 08/05/2010
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 183 .C7 |
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