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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/112011
Last checked: 11/14/2018
Requires: JavaScript |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Kaluwasha, Waana;
Xiong, Xi |
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| Author Affiliation: | Plant Sciences, University of Missouri, Columbia, MO |
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| Title: | The influence of calcium fertilizer and nitrogen fertilizer on root growth of creeping bentgrass (Agrostis stolonifera L.) infected with dollar spot (Sclerotinia homoeocarpa Bennett) under chilling temperature |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Applied pest management: Diseases and weeds (Includes student competition)
Other records with the "Applied pest management: Diseases and weeds (Includes student competition)" Section
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| Meeting Info.: | Baltimore, Maryland: November 4-7, 2018 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2018, p. 112011. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Calcium fertilizers; Cold; Dollar spot; Fertilizer evaluation; Nitrogen fertilization; Root growth; Turfgrass quality
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| Abstract/Contents: | "Creeping bentgrass (Agrostis stolonifera L) is a stoloniferous cool-season grass that remains the most desirable turf species for use on golf course putting greens. This is due to its dense growth habit, fine leaf texture and ability to tolerate close mowing heights. Despite these desirable traits, creeping bentgrass is also susceptible to dollar spot caused by the foliar fungal pathogen Sclerotinia homoeocarpa Bennett, whose occurrence begins as early as March. Even though dollar spot symptoms are confined to aerial portions of the plant, it can produce a toxic fungal metabolite and reduce root growth. Reduced root growth implies poor plant anchorage, thereby increased tear from athletes. The objective of this experiment was therefore to assess the effects of nitrogen and calcium fertilizer for their influence on creeping bentgrass root growth under early spring climatic conditions. A growth chamber experiment with 4 °C temperature setting was performed and treatments, including with or without calcium fertilizer at a rate of 244 kg/ha, with or without nitrogen fertilizer at a rate of 10kg/ha, and with or without inoculation of S. homoeocarpa, were arranged in a 2 x 2 x 2 factorial combination in a completely randomized design with six replications. Creeping bentgrass "A-4"core samples collected from a USGA green were transplanted into cone-tainers filled with USGA-spec sand and acclimated before being subjected to 4 °C growth condition. During the experiment, plants were maintained at 2.5 cm and watered as needed to prevent drought. Data collected included weekly assessment of turf quality (1-9), percent disease cover, in addition to shoot and root biomass at 4 weeks after treatment application. The percent green cover was monitored weekly by digital image analysis. The roots were subjected to WinRhizo analysis to determine root architecture characteristics. This experiment is still ongoing, and results will be discussed in the presentation." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"140-2" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kaluwasha, W., and X. Xiong. 2018. The influence of calcium fertilizer and nitrogen fertilizer on root growth of creeping bentgrass (Agrostis stolonifera L.) infected with dollar spot (Sclerotinia homoeocarpa Bennett) under chilling temperature. Agron. Abr. p. 112011. |
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Last checked: 11/14/2018
Requires: JavaScript |
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