Full TGIF Record # 317060
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/138451
    Last checked: 03/28/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Lu, Jefferson; DaCosta, Michelle
Author Affiliation:Lu: Plant Biology, University of Massachusetts-Amherst, Amherst, MA; DaCosta: Stockbridge, University of Massachusetts-Amherst, Amherst, MA
Title:Effects of a plant health activator, acibenzolar-S-methyl, on creeping bentgrass metabolism under reduced irrigation
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Turfgrass physiology and abiotic stress oral (includes student competition)
Other records with the "Turfgrass physiology and abiotic stress oral (includes student competition)" Section
Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 138451.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"The use of plant health activators, also referred to as elicitors or priming compounds, have been increasingly used in the management of turfgrasses to mitigate biotic and abiotic stresses. Acibenzolar-S-methyl (ASM) is a priming compound that has been shown to activate the systemic acquired resistance pathway of plants, and prior controlled environment experiments have demonstrated that application of products containing ASM can improve the overall turfgrass quality (TQ) of creeping bentgrass (Agrostis stolonifera) when exposed to disease, heat, and drought stresses. The effects of ASM on plant defense activation under field conditions is not well understood, especially as it relates to improving abiotic stress tolerance. Therefore, the objectives of this study were to evaluate the effects of a stand-alone fungicide and a fungicide containing ASM on turfgrass quality under reduced irrigation, and to quantify the effects of chemical treatments on primary and secondary plant metabolism. The experiment was conducted in the field in summer 2019 on a creeping bentgrass fairway maintained at 8 mm height of cut. Three chemical treatments (untreated, Fungicide alone (fluazinam), and Fungicide+ASM) were applied at 14 d intervals during the season. The plots were located under a rainout shelter to exclude rainfall, and irrigation was withheld to exposed to expose plants to moderate drought stress. Weekly measurements included assessment of turf quality, disease, soil moisture content, and percent cover based on digital image analysis. Clippings were collected three time points for metabolite analyses. Creeping bentgrass maintained higher TQ, percent green cover, and soil moisture in response to applications of Fungicide and Fungicide+ASM compared to untreated plots. Primary and secondary metabolism was significantly altered, particularly in response to Fungicide+ASM. The potential defense pathways associated with enhanced TQ under reduced irrigation will be discussed."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lu, J., and M. DaCosta. 2021. Effects of a plant health activator, acibenzolar-S-methyl, on creeping bentgrass metabolism under reduced irrigation. Agron. Abr. p. 138451.
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    Last checked: 03/28/2022
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