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| DOI: | 10.1111/j.1365-3059.1974.tb01833.x |
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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3059.1974.tb01833.x/pdf
Last checked: 01/13/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Heard, A. J.;
A'Brook, J.;
Roberts, E. T.;
Cook, R. J. |
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| Author Affiliation: | Heard: Grassland Research Institute, Hurley; A'Brook: Welsh Plant Breeding Station, Aberystwyth; Roberts and Cook: Agricultural Development and Advisory Service, Reading and Bristol |
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| Title: | The incidence of ryegrass mosaic virus in crops of ryegrass grown for seed in some southern counties of England |
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| Source: | Plant Pathology. Vol. 23, No. 4, December 1974, p. 119-127. |
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| Publishing Information: | Oxford: Blackwell Scientific Publications |
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| # of Pages: | 9 |
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| Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3059.1974.tb01833.x/abstract
Last checked: 01/13/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Lolium multiflorum; Lolium perenne; Ryegrass mosaic virus
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| Geographic Terms: | England |
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| Abstract/Contents: | "Italian ryegrass, cultivar Aberystwyth S22 and perennial ryegrass, cv. S321, grown for the production of seed in the A.D.A.S. S.E. Resion and Wiltshire were surveyed for ryegrass mosaic virus (RMV). Visual leaf symptoms were used to assess infection; the diagnosis was checked using the electron microscope. RMV infection was widespread in both grasses and about 30% of the fields carried an infection level greater than 10% (based on number of plants infected/examined). Higher levels of infection were encountered in crops of Italian ryegrass than in perennial ryegrass. Out of 69 fields of Italian ryegrass, only 12 showed no infection whilst nine fields showed a level of infection greater than 30%. Twenty-eight of the 61 fields of perennial ryegrass showed no infection and the highest level of infection found was 26%. All of the Italian and most of the perennial ryegrass crops were in their first harvest year. Since Italian ryegrass crops were occasionally encountered with more than 70% of the plants infected, it is obvious that RMV can spread very quickly. In perennial ryegrass fields an increase in the amount of N fertilizer applied in the spring led to an increase in RMV; an increase from 100 to 200 kg N/ha led to an increase in the level of RMV from 9 to 37%. By the first harvest year, fields sown in the spring of the previous year (usually under a cereal crop) were generally much more heavily infected than those sown in the autumn of the same year." |
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| Language: | English |
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| References: | 5 |
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| Note: | Summary appears as abstract
Map
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Heard, A. J., J. A'Brook, E. T. Roberts, and R. J. Cook. 1974. The incidence of ryegrass mosaic virus in crops of ryegrass grown for seed in some southern counties of England. Plant Pathol. 23(4):p. 119-127. |
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| DOI: 10.1111/j.1365-3059.1974.tb01833.x |
| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3059.1974.tb01833.x/pdf
Last checked: 01/13/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: SB 599 .P96 |
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