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| Web URL(s): | https://listings.lib.msu.edu/iowat/1991.pdf#page=139
Last checked: 01/10/2017
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hodges, C. F. |
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| Author Affiliation: | Professor, Turfgrass Science, Horticulture Department, Iowa State University, Ames, IA |
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| Title: | Physiological management of Chlorosis associated with foliar pathogens of turfgrasses |
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| Source: | 1991 Iowa Turfgrass Research Report. July 1991, p. 134. |
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| Publishing Information: | Ames, Iowa: Iowa State University |
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| Keywords: | TIC Keywords: Chlorosis; Disease control; Leaf spot; Pathogens
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| Abstract/Contents: | "Research is in progress to determine the potential for manipulation of symptom expression by leaf spot (Bipolaris sorokiniana) infected turfgrasses. Studies conducted over the last eight years have established that foliar yellowing of leaves infected by leaf spot (and possibly other leaf infecting pathogens) is due to a combination of hormonal imbalances and the production of fungal toxins during the process of infection. Preliminary research suggests that several substances are active against the hormone-induced yellowing during infection. These substances function by either interrupting the biosynthesis of the hormone-induced yellowing infection, or by preventing the mode of action of the hormones after they are produced. Preliminary studies in which leaf spot infection causes at least a 50% loss in chlorophyll over four days can be decreased to a 9% loss in plants treated with one substance under study. The remaining loss of chlorophyll is believed due to a toxin that functions independently of the hormone imbalance. The intent of these studies is to develop a new approach to foliar disease control that would not prevent infection, but would limit the expression of yellowing by infected leaves. With frequent mowing, the infected tissue would be removed and the small lesions produced by the pathogen without yellowing would not interfere with the aesthetics of the turf. *This research is being supported in part by a grant from the United States Golf Association." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hodges, C. F. 1991. Physiological management of Chlorosis associated with foliar pathogens of turfgrasses. Iowa Turfgrass Res. Rep. p. 134. |
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| Web URL(s):
https://listings.lib.msu.edu/iowat/1991.pdf#page=139
Last checked: 01/10/2017
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 I55 |
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