Full TGIF Record # 220896
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DOI:10.1094/PHYTO-103-6-S2.1
Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-103-6-S2.1#page=65
    Last checked: 06/03/2013
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Inguagiato, J.
Author Affiliation:University of Connecticut, Storrs, CT
Title:Relationship of canopy reflectance and foliar NO-3-N to anthracnose severity on an annual bluegrass putting green
Section:2013 APS-MSA Joint Meeting abstracts of presentations
Other records with the "2013 APS-MSA Joint Meeting abstracts of presentations" Section
Meeting Info.:Austin, Texas: August 10-14, 2013
Source:Phytopathology. Vol. 103, No. 6S, June supplement 2013, p. S2.65.
Publishing Information:St. Paul, Minnesota: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Anthracnose; Colletotrichum graminicola; Cultural methods; Disease control; Disease severity; Golf greens; Nitrogen fertility; Poa annua
Abstract/Contents:"Anthracnose of Poa annua L., caused by Colletotrichum cereale Manns sensu lato Crouch, Clarke and Hillman, continues to be a challenging disease on putting greens throughout the United States. Nitrogen fertility is known to influence anthracnose, although optimum rates to suppress the disease may vary annually and are often based on subjective assessments of color. A field study was conducted on a P. annua putting green turf in Storrs, CT during 2011 to evaluate the relationship between anthracnose severity and foliar NO-3-N, chlorophyll index (CHL), and normalized difference vegetative index (NDVI). Nitrogen treatments were applied at 0.0, 2.4, 4.9, 9.8, 14.7, 19.5, 24.4, and 36.7 kg ha-1 every 14 days from 30 May to 11 August. Anthracnose developed in late-June and severity declined from 76 to 4% with increasing N rate during July. No consistent relationship was observed between NO-3-N measured in sap extracted from clippings and anthracnose severity. CHL and NDVI values were lower in plots where anthracnose was more severe; plots with values greater than 250 or 0.780 generally were <= 10% blighted, respectively. These data suggest that it may be possible to use reflectance meters to guide N fertility practices to minimize anthracnose incidence on putting green turf."
Language:English
References:0
Note:Reprint appears in 2013 Annual Turfgrass Research Report [Connecticut], p. 75
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Inguagiato, J. 2013. Relationship of canopy reflectance and foliar NO-3-N to anthracnose severity on an annual bluegrass putting green. Phytopathology. 103(6S):p. S2.65.
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DOI: 10.1094/PHYTO-103-6-S2.1
Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-103-6-S2.1#page=65
    Last checked: 06/03/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: b2219736a
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