Full TGIF Record # 70818
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Wang, Z.; Casler, M. D.; Stier, J. C.; Gregos, J.; Millett, S. M.; Maxwell, D. P.
Author Affiliation:Wang: University of Wisconsin
Title:Speckled snow mold resistance in creeping bentgrass
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 151.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Typhula blight; Disease resistance; Agrostis stolonifera; Typhula ishikariensis
Abstract/Contents:"Winter diseases of turfgrass, collectively referred to as snow molds, are a major problem on golf courses and other turf areas in Wisconsin and similar regions. Creeping bentgrass (Agrostis palustris) is a highly desirable species for these types of turf, but most cultivars are highly susceptible to various snow mold pathogens. Speckled snow mold, caused by Typhula ishikariensis, a facultative parasite, is one of the most severe snow mold diseases in Wisconsin. In 1997 and 1998, we collected over 700 clones of creeping bentgrass from older (25+ years) golf courses throughout Wisconsin. Plants were sampled from fairways that are not treated with snow mold inhibiting fungicides or from putting greens that are treated with such fungicides. We screened 326 of these clones for reaction to an isolate of T. ishikariensis in a replicated experiment during the summer of 1999. Reaction to the fungus was highly repeatable and differed among the clones (P<0.01). Twenty-two of the fairway clones were highly resistant, while only 3% of the putting green clones were highly resistant (P<0.01 for this difference). This suggests that considerable natural selection for resistance has occurred on these fairways, increasing the frequency of resistant plants. Furthermore, snow mold resistant plants are probably present in very low frequency in most bentgrass cultivars."
See Also:See also related article, "Speckled snow mold resistance in creeping bentgrass" Proceedings of the 36th Grass Breeders' Work Planning Conference, Vol. 36 2000, p. 40, R=176861 R=176861
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wang, Z., M. D. Casler, J. C. Stier, J. Gregos, S. M. Millett, and D. P. Maxwell. 2000. Speckled snow mold resistance in creeping bentgrass. Annu. Meet. Abstr. p. 151.
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