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| DOI: | 10.1002/csc2.21178 |
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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.1002/csc2.21178
Last checked: 03/28/2024
https://acsess.onlinelibrary.wiley.com/doi/pdf/10.1002/csc2.21178
Last checked: 03/28/2024
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Reed, C.;
Harriman, R.;
Koch, M.;
Baldwin, C.;
Gardner, D.;
Chang, B.;
Wherley, B. |
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| Author Affiliation: | Reed, Harriman, Koch, and Baldwin: Scotts Miracle-Gro Company, Marysville, Ohio; Gardner: Department of Horticulture and Crop Science, The Ohio State University, Columbus, Ohio; Chang and Wherley: Soil and Crop Sciences, Texas A&M University, College Station, Texas |
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| Title: | Minimal light requirements and performance under reduced photosynthetic photon flux of GA2ox-transformed and conventional Kentucky bluegrass |
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| Section: | Turfgrass science
Other records with the "Turfgrass science" Section
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| Source: | Crop Science. Vol. 64, No. 2, March/April 2024, p. 1027-1038. |
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| Publishing Information: | Madison, Wisconsin: Crop Science Society of America |
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| # of Pages: | 12 |
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| Abstract/Contents: | "Shade stress is a common problem encountered in turfgrass management situations worldwide. Shade reduces photosynthetic photon flux (PPF), alters light quality, reduces air movement, and may introduce tree root competition. As a species, Kentucky bluegrass (Poa pratensis L.) possesses relatively poor shade tolerance, which limits its use in reduced light environments. However, genetic alteration of the gibberellic acid enzyme pathway has shown promise in some plant species for improving growth in shade. The objective of this 2-year field study was to determine the comparative performance under reduced PPF and determine minimal daily light integral (DLIm) requirements for acceptable quality of a conventional (CONV) Kentucky bluegrass (KBG) blend and gibberellic acid 2-oxidase (GA2ox) transformed ProVista (PV) KBG. A 2-year field study was conducted under neutral density shade treatments producing monthly daily light integrals averaging from ~5.8 (90% shade) to 48 mol m-2 day-1 (full sun) for mid-June through October study periods. Based on nonlinear regression of mean monthly DLI during the study period versus turfgrass quality (TQ) at the end of each study period, DLIm was found to range from 7.5 to 10 mol m-2 day-1 for PV and from 22.5 to 26.2 mol m-2 day-1 for CONV KBG. Improved TQ of PV under low light intensities may be associated with reduced rates of leaf elongation, greater stand density, higher chlorophyll concentrations, and darker green color compared to CONV KBG. Although shade duration did not exceed 4 months, the results suggest that GA2ox-transformed PV KBG possesses improved tolerance to reduced PPF compared to CONV KBG." |
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| Language: | English |
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| References: | 49 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reed, C., R. Harriman, M. Koch, C. Baldwin, D. Gardner, B. Chang, et al. 2024. Minimal light requirements and performance under reduced photosynthetic photon flux of GA2ox-transformed and conventional Kentucky bluegrass. Crop Sci. 64(2):p. 1027-1038. |
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| DOI: 10.1002/csc2.21178 |
| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.1002/csc2.21178
Last checked: 03/28/2024
https://acsess.onlinelibrary.wiley.com/doi/pdf/10.1002/csc2.21178
Last checked: 03/28/2024
Requires: PDF Reader |
| 
MSU catalog number: b2211522 |
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