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| Publication Type:
| Report |
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| Author(s): | Alderman, S. C.;
Mellbye, M. E.;
Spinney, R. L. |
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| Author Affiliation: | USDA-ARS, Corvallis, Oregon; Oregon State University Extension Service,Albany; and Western Farm Service, Tangent, Oregon |
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| Title: | Evaluation of fungicides for control of blind seed in perennial ryegrass, 1997 |
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| Source: | Fungicide and Nematicide Tests. Vol. 53, 1998, p. 370. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Lolium perenne; Fungicides; Disease control; Propiconazole; Application rates; Application timing
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| Abstract/Contents: | "Evaluation of fungicides for control of blind seed in perennial ryegrass, 1997. The experiment was conducted in 1997 in a commercial ryegrass field near Tangent, OR, where blind seed occurred during 1996. Field plots were 10x24 feet with uncut 10-foot borders surrounding each plot. Plots were arranged in a randomized block complete design with four replications per treatment. fungicides were applied at the beginning of flowering (16 May) and about 6 weeks later (30 June). When mature, 400 seed heads were collected by hand at count of conidia of Gloeotinia temulenta washed from seed. A 10 g seed sample from each plot was soaked in water for 15 minutes. The water was trasferred to test tubes, agitated with a vortex mixer to suspend conidia then samples were drawn for counting. Conidia were counted using a hemacytometer under 200X magnification. Conditions during early to mid-flowering were dry and generally unfavorable for blind seed development. Inspection of the seed from control plots indicated about 2-4% of the seeds were infected. Based on number of conidia, significant differences among treatments were apparent when the data were analyzed by one-way ANOVA. No significant reduction in blind seed occurred in response to application of Quadris. Level of blind seed from plots treated with Tilt sprayed twice, or once at the rate of 8 oz, did induce a significant reduction in blind seed Folicur, 8 oz, dual application, also significantly reduced the level of blind seed." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Alderman, S. C., M. E. Mellbye, and R. L. Spinney. 1998. Evaluation of fungicides for control of blind seed in perennial ryegrass, 1997. Fungicide Nematicide Tests. 53:p. 370. |
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