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| Publication Type:
| Refereed |
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| Author(s): | Wilcut, John W.;
Truelove, Bryan;
Davis, Donald E.;
Wiliams, John C. |
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| Author Affiliation: | Virginia Polytech. Inst. and State Univ., tidewater Agric. Exp. Stn., Sufolk, VA; Dept. Botany and Microbiol., and Prof., Res. Data Analysis, Alabama Agric. Exp. Stn., Auburn University, AL. |
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| Title: | Temperature Factors Limiting the Spread of Cogongrass (Imperata cylindrica) and Torpedograss (Panicum repens) |
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| Source: | Weed Science. Vol. 36, No. 1, January 1988, p. 49-55. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| Keywords: | TIC Keywords: Temperatures; Competition; Growth analysis; Panicum repens; Sorghum halepense; Cynodon dactylon
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| Geographic Terms: | Southeastern United States |
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| Abstract/Contents: | "Greenhouse, growth chamber, and field studies were conducted to determine effect of temperature on the potential of cogongrass (Imperata cylindricar L. Beauv. #3 IMPCY) and torpedograss (Ppanicum repens L. # PANRE) to spread beyond present distribution in the Lower Coastal Plains of Southeastern United States. Johnsongrass [Sorghum halepense (L.) Pers # SORHA] was included in the study for coparative purposes. Growth of each species was greater with day/night temperature regimes of 30/25 C than with 27/22 or 24/18 C. Apical six-node-ling rhizome fragments of all three species were killed by a 24-h exposure to -4.5 C. Johnsongrass produced at least three to five times more dry matter than either cogongrass or torpedograss. Order of interspecific competitiveness under 30/25, 27/22, and 24/18 C day/night temperature regimes was johnsongrass > torpedograss > cogongrass. After 2 yr, johnsongrass and torpedograss competition reduced common bermudagrass [Cynodon dactylon (L.) Pers. # CYNDA] yield by 99 and 37%, respectively, while cogongrass competition did not affect common bermudagrass yield. It is concluded that cogongrass and torpedograss are unlikely to spread into more temperate regions of the United States. However, both species are apt to become even more widespread and troublesome in the Lower Coastal Plains of Southeastern United States." |
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| Language: | English |
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| References: | 28 |
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| Note: | Tables
Maps |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wilcut, J. W., B. Truelove, D. E. Davis, and J. C. Wiliams. 1988. Temperature Factors Limiting the Spread of Cogongrass (Imperata cylindrica) and Torpedograss (Panicum repens). Weed Sci. 36(1):p. 49-55. |
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MSU catalog number: SB 610 .W38 |
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