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Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.1986.tb07655.x/epdf Last checked: 09/29/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Heard, A. J.;
Chapman, P. F. |
Author Affiliation: | The Grassland Research Institute, Hurley, Maidenhead, Berkshire |
Title: | A field study of the pattern of local spread of ryegrass mosaic virus in mown grassland |
Source: | Annals of Applied Biology. Vol. 108, No. 2, April 1986, p. 341-345. |
Publishing Information: | London: Cambridge University Press |
Keywords: | TIC Keywords: Ryegrass mosaic virus; Lolium; Lolium multiflorum; Abacarus hystrix; Mowing
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Abstract/Contents: | "In a field experiment at Hurley, small areas of old ryegrass sward, known to be infested with ryegrass mosaic virus (RMV) were partially surrounded b newly-sown Italian ryegrass. The experiment was harvested by mowing on five occasions. Samples of Italian ryegrass taken when it was 11 months old showed a very marked increase in the levels of RMV close to the areas of the old sward. Thus, 84% of the Italian ryegrass plants bordering the old sward to the north contained RMV, compared with 63% of plants only 2.7 m away. The corresponding values to the south were 68% and 39%. The much higher values encountered to the north are presumed to be caused by the movement of the mite vector of RMV (Abacarus hystrix) in relation to the prevailing wind. Two different mowers were used, a rotary mower and a reciprocating knife mower. We could demonstrate no increase in the level of RMV as a result of mowing from the infected sward and on to the new sowing and could demonstrate no difference in the infection levels as a result of using the different mowers. We conclude that in mown swards migration by the mite is responsible for all or nearly all of very local spread of RMV." |
Language: | English |
References: | 6 |
Note: | Tables Figures |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Heard, A. J., and P. F. Chapman. 1986. A field study of the pattern of local spread of ryegrass mosaic virus in mown grassland. Ann. Appl. Biol. 108(2):p. 341-345. |
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| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1744-7348.1986.tb07655.x/epdf Last checked: 09/29/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: QH 301 .A48 |
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