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DOI: | 10.2134/agronj2008.0004x |
Web URL(s): | https://dl.sciencesocieties.org/publications/aj/articles/101/1/75 Last checked: 11/02/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/101/1/75 Last checked: 11/02/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Baldwin, Christian M.;
Liu, Haibo;
McCarty, Lambert B.;
Luo, Hong;
Toler, Joe E. |
Author Affiliation: | Baldwin: Jacklin Seed Company, Post Falls, Idaho; Liu and McCarty: Department of Horticulture; Luo: Department of Genetics and Biochemistry; Toler: Department of Applied Economics and Statistics, Clemson University, Clemson, South Carolina |
Title: | Nitrogen and plant growth regulator influence on 'Champion' bermudagrass putting green under reduced sunlight |
Section: | Turfgrass Other records with the "Turfgrass" Section
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Source: | Agronomy Journal. Vol. 101, No. 1, January/February 2009, p. 75-81. |
Publishing Information: | Madison, WI: American Society of Agronomy |
# of Pages: | 7 |
Keywords: | TIC Keywords: Plant growth regulators; Cynodon dactylon; Cynodon transvaalensis; Light intensity; Golf greens; Growth factors; Application rates; Fertilization rates; Quality evaluation; Clipping weight; Chlorophyll content; Best management practices; Total nonstructural carbohydrate content; Thatch accumulation
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Cultivar Names: | Champion |
Abstract/Contents: | "Managing warm-season turfgrasses with reduced sunlight is challenging due to C4 plant morphological limitations, such as reduced lateral stem growth. Adjusting cultural management practices, such as N and trinexapac-ethyl (TE) [4-(cyclopropyl-a-hydroxy-methylene)-3,5-dioxocyclohexanec< >arboxylic acid ethyl ester], application may benefit turfgrass performance when sunlight is reduced. Therefore, a 2-yr field study from 15 June to 15 September in 2006 and 2007 at Clemson University investigated the best management practices for sustaining a high quality 'Champion' bermudagrass (Cynodon dactylon (L.) Pers. X C. transvaalensis Burtt-Davy) putting green maintained at a 3.2-mm mowing height under reduced sunlight. Treatments included full-sunlight, 55% full-day shade, TE (0.02 kg a.i. ha-1 2 wk-1), Fe (2.7 kg ha-1 2 wk-1), and N as liquid urea at 147, 293, and 440 kg ha-1 yr-1. Data collection included visual turfgrass quality (TQ), total clipping yield, clipping chlorophyll concentration, root total nonstructural carbohydrates (TNC), thatch accumulation, and thatch depth. Overall, FE applications minimally impacted parameters measured. Increasing N rates linearly increased TQ when grown inder full sunlight. Applying N at ~40% lower (147 kg ha-1 yr-1) than the typical recommended rates for ultradwarf bermudagrass putting greens improved Champion TQ under reduced light compared to higher N rates. Applying TE resulting in a linear TQ increase for full sunlight and shade-grown Champion bermudagrass. Under reduced sunlight, a 15% chlorophyll concentration increase was noted for TE-treated plots compared to nonTE-treated plots. Shade reduced thatch accumulation 40% compared to sun-grown Champion, which suggests less aggressive cultivation practices are required for thatch control under reduced light. Champion bermudagrass did not provide an acceptable putting green quality when grown under 55% full-day shade, however,adjusting management practices enhanced Champion bermudagrass quality under reduced light." |
Language: | English |
References: | 45 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Baldwin, C. M., H. Liu, L. B. McCarty, H. Luo, and J. E. Toler. 2009. Nitrogen and plant growth regulator influence on 'Champion' bermudagrass putting green under reduced sunlight. Agron. J. 101(1):p. 75-81. |
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| DOI: 10.2134/agronj2008.0004x |
| Web URL(s): https://dl.sciencesocieties.org/publications/aj/articles/101/1/75 Last checked: 11/02/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/aj/pdfs/101/1/75 Last checked: 11/02/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2212646a |
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