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| Publication Type:
| Refereed |
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| Author(s): | Jenkyn, J. F.;
King, J. E. |
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| Author Affiliation: | Institute of Arable Crops Research, Roghamsted Experimental Station, Harpenden, Herts AL5 2JQ, UK, and Ministry of Agriculture, Fisheries and Food, Harpenden Laboratory, Hatching Green, Harpenden, Herts AL5 2BD, UK, respectively. |
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| Title: | Effects of Treatments to Perennial Ryegrass on the Development of Septoria spp. in a Subsequent Crop of Winter Wheat |
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| Source: | Plant Pathology. Vol. 37, No. 1, March 1988, p. 112-119. |
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| Publishing Information: | Oxford : Blackwell Scientific Publications |
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| Keywords: | TIC Keywords: Lolium perenne; Disease control; Septoria tritici; Septoria nodorum; Captafol
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| Abstract/Contents: | "An experiment started in spring 1979 tested the effects of different treatments to perennial ryegrass, established as pure stands or undersown in spring wheat, on the severity of septoria diseases on the grass and in a following crop of winter wheat, sown in autumn 1980. Other plots were fallowed in 1979 and 1980 before sowing to winter wheat, also in autumn 1980. Septoria tritici was most severe in whinter wheat after fallow and least severe in wheat that had been direct-drilled after ryegrass. These effects were attributed to differences in amounts of available nitrogen, and consequent differences in crop growth, rather than to any differences in primary inoculum. Symptoms attributed to S. nodorum on the ryegrass were more common where the grass had been established under spring wheat than where it had been sown as a pure stand. They also tended to be more common where ryegrass had been inoculated with spores of S. nodorum than where it had been sprayed with captafol. Similar effects on symptoms attributed to Septoria spp. (mostly (S. tritici) on the wheat were apparent in July. The results support the conclusion that the greater severity of setoria diseases that often occurs on wheat after grass than after non-graminaceous breaks, is probably due in part to survival of the pathogens on grass and, in some circumstances, on debris remaining from a previous wheat crop. However, other factors are also likely to be involved." |
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| Language: | English |
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| References: | 15 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jenkyn, J. F., and J. E. King. 1988. Effects of Treatments to Perennial Ryegrass on the Development of Septoria spp. in a Subsequent Crop of Winter Wheat. Plant Pathol. 37(1):p. 112-119. |
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