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Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1990.tb02177.x/epdf Last checked: 10/02/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Plummer, R. M.;
Hall, R. L.;
Watt, T. A. |
Author Affiliation: | Plant Sciences Department, University of Oxford |
Title: | The Influence of Crown Rust (Puccinia coronata) on Tiller Production and Survival of Perennial Ryegrass (Lolium perenne) Plants in Simulated Swards |
Source: | Grass and Forage Science. Vol. 45, No. 1, March 1990, p. 9-16. |
Publishing Information: | Oxford, Blackwell Scientific Publications |
Keywords: | TIC Keywords: Puccinia coronata; Lolium perenne; Infection; Nitrogen; Pathogens
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Abstract/Contents: | "Populations of Aberystwyth S23 and S24 ryegrass tillers were individually labelled and harvested at intervals to follow their life histories and productivity in response to the effect of infection with crown rust at two levels of nitrogen fertilization. The number of tillers in a population was reduced as a result of infection with crown rust. Increased rates of tiller death due to the pathogen occurred throughout the population age-range and were most pronounced in the youngest tillers. Population changes were evidient following infection and continued to be apparent in the following spring. The disease caused alterations in sward age structure, leading both to a higher proportion of older tillers in the more rust-damaged treatments and to a decreased in the weight of the herbage produced. It is concluded that rust infection of a sward may lead to changes in population structure with long-term yield effects, in addition to the immediate direct yield reductions commonly reported. The signficance of these results to the ecological and agronomic balance of grassland is discussed." |
Language: | English |
References: | 13 |
Note: | Tables Charts |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Plummer, R. M., R. L. Hall, and T. A. Watt. 1990. The Influence of Crown Rust (Puccinia coronata) on Tiller Production and Survival of Perennial Ryegrass (Lolium perenne) Plants in Simulated Swards. Grass Forage Sci. 45(1):p. 9-16. |
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| Web URL(s): http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.1990.tb02177.x/epdf Last checked: 10/02/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 197 .B7 |
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