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Publication Type:
| Refereed |
Author(s): | Wilcut, John W.;
Dute, Roland R.;
Truelove, Bryan;
Davis, Donald E. |
Title: | Factors Limiting the Distribution of Cogongrass Imperata cylindrica, and Torpedograss, Panicun repens |
Source: | Weed Science. Vol. 36, No. 5, September 1988, p. 577-582. |
Publishing Information: | Champaign, IL: Weed Science Society of America |
Keywords: | TIC Keywords: Sorghum halepense; Panicum repens; Temperatures
|
Geographic Terms: | United States |
Abstract/Contents: | "Greenhouse, growth chamber, and laboratory studies were conducted to determine anatomical and morphological characteristics and cultural practices limiting the distribution of cogongrass, torpedograss, and johnsongrass in the United States. Cogongrass did not produce axillary buds along most of the rhizome nor regenerate when apical six-node-long rhizome segments were buried deeper than 8 cm. Both torpedograss and johnsongrass produced axillary buds along the entire lengths of their rhizomes. Torpedograss shoot emergence decreased at buial depths between 8 and 16 cm. Shoot emergence from johnsongrass rhizomes was not affected by burial as deep as 16 cm. Rhizomes of all three species were tolerant of desiccation. Cogongrass grew better in soil at pH 4.7 than in soil at pH 6.7, whereas torpedograss and johnsongrass grew equally well in either pH. Is postulated that cogongrass spread is limited by lack of axillary bud formation on most of the rhizome and the inability of rhizomes to send up new shoots if buried deepter than 8 cm. These factors could account for the intolerance of cogongrass to cultivation. Torpedograss appears to spread only vegeataively due to the lack of viable seed production." |
Language: | English |
References: | 23 |
Note: | Pictures Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Wilcut, J. W., R. R. Dute, B. Truelove, and D. E. Davis. 1988. Factors Limiting the Distribution of Cogongrass Imperata cylindrica, and Torpedograss, Panicun repens. Weed Sci. 36(5):p. 577-582. |
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