Full TGIF Record # 56046
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Green, D. E. II; Burpee, L. L.
Author Affiliation:Department of Plant Pathology, University of Georgia, Georgia Station, Griffin, GA 30223, USA
Title:Modelling the effects of host resistance on the progress of Rhizoctonia blight in tall fescue (Festuca arundinacea Schreb.)
Section:Turf diseases: Contributed papers
Other records with the "Turf diseases: Contributed papers" Section
Meeting Info.:Sydney, Australia: 1997
Source:International Turfgrass Society Research Journal. Vol. 8, No. Part 1, 1997, p. 883-892.
Publishing Information:Blacksburg, VA: International Turfgrass Society
# of Pages:10
Keywords:TIC Keywords: Brown patch; Festuca arundinacea; Disease resistance; Disease development; Cultivar susceptibility; Blends
Abstract/Contents:"The progress of Rhizoctonia blight was studied in blends of tall fescue (Festuca arundicaea Schreb.) composed of cultivars that are resistant (Kentcuky 31) or susceptible (Mojave) to Rhizoctonia solani AG 1-Ia. Models were developed from disease severity and incidence data to describe the effect that an increase in the proportion of Kentucky 31 in a blend had on the progress of Rhizoctonia blight. In controlled environment studies, linear regression estimates for disease severity revealed a decrease in disease progress of 1.83 and 0.59 for each 20% increase of Kentucky 31 in a blend during 1994 and 1995, respectively. A similar relationship was revealed in the field in 1996 for disease severity with a 1.33 unit reduction in disease progress. No consistent relationship was detected between cultivar blend and disease incidence or rate of disease increase. Results suggests that the resistant component in a blend delayed lesion expansion in the turfgrass canopy rather than inhibit spread of R. solani among shoots."
Language:English
References:19
Note:Figures
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Green, D. E. II, and L. L. Burpee. 1997. Modelling the effects of host resistance on the progress of Rhizoctonia blight in tall fescue (Festuca arundinacea Schreb.). Int. Turfgrass Soc. Res. J. 8(Part 1):p. 883-892.
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