Full TGIF Record # 7218
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Web URL(s):http://www.aspnet.org/publications/PlantDisease/backissues/Documents/1980Articles/PlantDisease64n11_1035.pdf
    Last checked: 09/19/2013
    Requires: PDF Reader
Publication Type:
i
Refereed
Author(s):Toler, R. W.; Bruton, B. D.; Grisham, M. P.
Author Affiliation:Toler: Professor, Department of Plant Sciences, Texas A&M University, College Station; Bruton: Research Plant Pathologist, USDA, ARS Weslaco, TX; Grisham: Assistant Professor, Department of Plant Sciences, Texas A&M University, College Station
Title:Evaluation of St. Augustinegrass accessions and cultivars for resistance to Sclerophthora macrospora
Section:Research
Other records with the "Research" Section
Source:Plant Disease. Vol. 67, No. 9, September 1983, p. 1008-1010.
Publishing Information:St. Paul, Minn., American Phytopathological Society
# of Pages:3
Related Web URL:http://www.apsnet.org/publications/PlantDisease/BackIssues/Documents/1980Abstracts/PD_64_1035.htm
    Last checked: 09/19/2013
    Notes: Abstract only
Keywords:TIC Keywords: Stenotaphrum secundatum; Sclerophthora macrospora
Geographic Terms:Texas
Abstract/Contents:"Sixty-four St. Augustinegrass accessions and cultivars were tested for resistance to downy mildew in the field and laboratory in 1981 and 1982, and 47 of these showed from a trace to 95% infection. In 1982, 15 accessions and cultivars had ratings of 25% or greater and 23 had ratings from a trace to 25%. The fact that infection of artificially inoculated plants ranged from 14.5 to 36.3% suggests that the inoculum potential was too high to detect low levels of resistance. A Floratam mutant, Mut 10, was rated as uninfected in the field, whereas artificial inoculation resulted in 21% infection. Two accessions, Tx 33 and PI 410355, which were rated as 90 and 64% infected, respectively, under conditions of natural inoculum in 1982, were rated as only 27 and 30% infected when artificially inoculated. Artificial inoculation with Sclerophthora macrospora by current techniques does not provide adequate discrimination among resistant and susceptible St. Augustinegrass accessions and cultivars, but reaction to natural infections provides a more reliable means of evaluation."
Language:English
References:7
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Toler, R. W., B. D. Bruton, and M. P. Grisham. 1983. Evaluation of St. Augustinegrass accessions and cultivars for resistance to Sclerophthora macrospora. Plant Dis. 67(9):p. 1008-1010.
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http://www.aspnet.org/publications/PlantDisease/backissues/Documents/1980Articles/PlantDisease64n11_1035.pdf
    Last checked: 09/19/2013
    Requires: PDF Reader
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