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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Landschoot, P. J.;
Hoyland, B. F. |
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| Author Affiliation: | Dept. of Agronomy, The Pennsylvania State University |
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| Title: | Resistance of creeping bentgrass and colonial bentgrass cultivars and selections to take-all patch, 1992 |
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| Source: | Biological and Cultural Tests for Control of Plant. Vol. 8, 1993, p. 117. |
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| Publishing Information: | St. Paul, MN: The American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Agrostis tenuis; Take-all patch; Gaeumannomyces graminis var. avenae
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| Abstract/Contents: | "Fourteen bentgrass cultivars and selections entered in the 1989 National Bentgrass Test were evaluated for resistance to take-all patch disease. Two isolates of G. graminis var. avenae, MACO-5 and CA-1, were obtained from creeping bentgrass in Pennsylvania and California, respectively. Inoculum for each isolate consisted of a colonized 2% (V/V) cornmeal/sand mixture. Plastic Cone-Tainers(TM) (Stuewe and Sons, Inc., Corvalis, OR 97333) were filled to within 2.5 cm of the top with calcined clay. Five g of the colonized 2% cornmeal/sand mixture was placed over the surface of the calcined clay and covered with 1.5 cm of calcined clay that was screened through a #10 U.S. Standard Sieve. Each Cone-Tainer was seeded with bentgrass at a rate of 17.0 mg of viable seed. The Cone-tainers were placed in holding racks and immersed in tubs filled with approximately 7 cm of water and placed on a greenhouse bench. The Cone-Tainers were periodically misted with water until seeds germinated. Following germination, plants were watered for a one minute period, twice daily. Each treatment was replicated four times and arranged in a randomized complete block design. The test was initiated on 26 Mar. Plants were rated for disease severity on 9, 15, 21, and 27 of April. Ratings were based on a scale of 1 to 9, with 1 equal to all plants dead and 9 equal to non-diseased, healthy appearing plants. All data was subjected to analysis of variance and Fisher's protected least significance difference (LSD) test was used to compare the treatment means. Significant differences were found in the resistance of bentgrasses to take-all patch. Providence, UM 84-01, Bardot, and Pennlinks showed the highest degree of resistance to the MACO-5 isolate, whereas. Penneagle and SR 1020 were among the most susceptible. UM 84-01, Bardot, Tracenta, and Pennlinks showed the highest degree of resistance of the CA-1 isolate. Penneagle, SR 1020, Penncross, 88.CBE, Normarc 101, and Putter were among the most susceptible to the CA-1 isolate." |
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| Language: | English |
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| References: | 0 |
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| Note: | Table
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Landschoot, P. J., and B. F. Hoyland. 1993. Resistance of creeping bentgrass and colonial bentgrass cultivars and selections to take-all patch, 1992. Biol. Cult. Tests Control Plant Dis. 8:p. 117. |
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