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| Publication Type:
| Refereed |
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| Author(s): | Lowe, David B.;
McCarty, Lambert B.;
Whitwell, Ted;
Bridges, William C. |
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| Author Affiliation: | Lowe: Department of Horticulture, Clemson University, Clemson, SC; McCarty and Whitwell: Deparment of Horticulture, Clemson University, Clemson, SC; Bridges: Department of Experimental Statistics, Clemson University, Clemson, SC |
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| Title: | Temperature influences Kyllinga brevifolia and K. squamulata growth |
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| Section: | Weed Biology and Ecology
Other records with the "Weed Biology and Ecology" Section
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| Source: | Weed Science. Vol. 47, No. 6, November/December 1999, p. 662-666. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Kyllinga brevifolia; Kyllinga squamulata; Temperatures; Weed control; Environmental factors; Growth; Root weight; Height; Inflorescences; Clipping weight
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| Abstract/Contents: | "Kyllinga species are becoming more common throughout the southeastern United States. Two species, Kyllinga brevifolia and Kyllinga squamulata, in particular are prevalent weeds in turfgrass. To better understand these weeds, growth chamber studies determined the growth of K. brevifolia, K. squamulatat, and Cynodon dactylon X Cynodon transvaalensis as influenced by three temperature regimes (33/24, 25/17, 19/11 C day/night, respectively). Temperature influenced almost all aspects of Kyllinga species growth. Plant height of both Kyllinga species increased nearly twofold after 8 wk at high temperatures. Plants were mowed each week to 2.5 cm; both species produced more than twice as many clippings by 8 wk at high (33/24 C) temperatures than at low (19/11 C) temperatures. Destructive analysis at 8 wk revealed that K. brevifolia shoot and root weight increased with decreasing temperature, whereas K. squamulata shoot and root weights were not affected by temperature. Shoot weight percentage for both Kyllinga species increased from 59% in medium temperatures to 69% in high temperatures. K. brevifolia shoot weight percentage decreased to 53% in low temperatures, whereas K. squamulata shoot weight percentage increased to 72%. K. brevifolia inflorescences formed at 2, 3, and 5 wk in high, medium, and low temperatures, respectively, whereas K. squamutata flowered immediately in all temperatures. C. dactylon X C. transvaalensis and Kyllinga species growth were similar within each temperature regime throughout the 8 -wk study." |
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| Language: | English |
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| References: | 17 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lowe, D. B., L. B. McCarty, T. Whitwell, and W. C. Bridges. 1999. Temperature influences Kyllinga brevifolia and K. squamulata growth. Weed Sci. 47(6):p. 662-666. |
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MSU catalog number: SB 610 .W38 |
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