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| Web URL(s): | https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/149362
Last checked: 12/01/2023 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Petrella, Dominic P. |
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| Author Affiliation: | Presenting Author and Deparment of Horticulture and Crop Science, Ohio State University Agricultural Technical Institute, Wooster, OH |
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| Title: | Comparing the effects of reductions in photosynthetic photon flux (PPF) with and without reductions in the ratio of red to far-red (R:FR) light on cool-season turfgrass putting greens |
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| Section: | Turfgrass physiology, molecular biology, breeding, genetic and microbiome poster (includes student competition)
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| Meeting Info.: | St. Louis, Missouri: October 29-November 1, 2023 |
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| Source: | ASA, CSSA, SSSA International Annual Meeting. 2023, p. 149362. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Shade on putting greens is a consistent issue for many golf course superintendents. While there is research that has evaluated the effects of reducing the photosynthetic photon flux (PPF) on putting greens, there has been little research that has evaluated this response when the ratio of red to far-red (R:FR) is also reduced. Under shade or shadows from trees, the PPF and the R:FR ratio decreases; examining PPF only does not relative to real-world conditions. To understand how creeping bentgrass (Agrostis stolonifera) and annual bluegrass (Poa annua) grown on putting greens respond foliar-shade, we treated plots with neutral density shade cloth and photoselective filters. The cytokinin 6-Benzylaminopurine (BAP) was also applied to half of each plot to examine phytohormone influences on light responses. In summer 2023 shade treatments were applied including: 1) 90% black knitted shade cloth to reduce PPF only; 2) layered Rosco E-Colour+ 0.90 neutral density (ND) and Rosco E-Colour+ 0.30 ND filters to reduce PPF and the R:FR ratio, and 3) untreated, full sun, control to a 100% creeping bentgrass putting green and an 80% Poa annua / 20% creeping bentgrass putting green in Wooster OH. The shade cloth reduced PPF by 92% while the filters reduced PPF by 91%. The R:FR ratio under the filters was 0.21 on average, 1.06 under the shade cloth, and 1.12 under full sun across three sampling dates. Data for percent green cover and plant height data collected using a prism gauge consistently showed that both Poa annua and creeping bentgrass respond to PPF reductions differently when the R:FR ratio is also decreased alongside of light intensity. Research evaluating turfgrass response to foliar-shade should include reductions in the R:FR, as this realistic change in light will have a strong influence on the outcomes based on our results." |
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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):
Petrella, D. P. 2023. Comparing the effects of reductions in photosynthetic photon flux (PPF) with and without reductions in the ratio of red to far-red (R:FR) light on cool-season turfgrass putting greens. Agron. Abr. p. 149362. |
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| Web URL(s):
https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/149362
Last checked: 12/01/2023 |
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