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| Web URL(s): | http://usgatero.msu.edu/v08/n06.pdf
Last checked: 03/10/2009
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Fu, Jinmin;
Dernoeden, Peter H. |
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| Author Affiliation: | Fu: Horticulture Professor, Wuhan Botanical Garden, The Chinese Academy of Science, Wuhan City, Hubei, China; Dernoeden: Professor, Department of Plant Science and Landscape Architecture, University of Maryland, College Park, Maryland |
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| Title: | Carbohydrate metabolism in creeping bentgrass as influenced by spring and summer coring |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 8, No. 6, March 15 2009, p. [1-10]. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Metabolism; Agrostis stolonifera; Coring; Seasonal maintenance; Growth factors; Golf greens; Photosynthesis; Respiration; Water soluble carbohydrates; Roots
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| Abstract/Contents: | "Carbohydrates provide energy required to maintain healthy plant growth in summer. Coring is performed periodically on creeping bentgrass (Agrostis stolonifera L.) putting greens for numerous reasons; however, its impact on carbohydrate metabolism in creeping bentgrass is unknown. The objectives of this two-year field study were to examine the effects of coring on rates of photosynthesis (Pn) and whole plant respiration (Rw); and to quantify water soluble carbohydrates [WSC (i.e., glucose, fructose, and sucrose)], storage carbohydrates [SC (i.e., fructan and starch], and total non-structural carbohydrates [TNC (i.e., WSC plus SC)] in creeping bentgrass leaves and roots during the summer. The study site was 'Providence' creeping bentgrass grown on a sand-based rootzone and was maintained as a putting green. Three coring treatments were assessed as follows: spring only coring, spring plus three summer corings, and a non-cored control. Results include: Coring with large diameter times in the spring resulted in an increase in respiration on the initial rating date in each year. In general, however, photosynthesis and respiration were not negatively impacted by coring. Photosynthesis was unchanged when measured about 21 days following coring. On the final rating in September of each year photosynthesis was higher in spring + summer cored bentgrass. Leaf and root WSC, SC, and TNC levels were similar among coring treatments throughout the summer of each year. Root TNC levels were lower in July of each year in spring + summer cored bentgrass versus other coring treatments. Coring in spring + summer resulted in enhanced carbohydrate levels in leaves and roots by September, which would benefit plants in their recovery from drought and other summer stresses. Seasonal carbohydrate status of creeping bentgrass support the use of large and small diameter times in spring versus summer corings, respectively." |
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| Language: | English |
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| References: | 14 |
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| See Also: | Other Reports from this USGA research project: 2006-14-322 |
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| Note: | Summary as abstract
Pictures, color
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fu, J., and P. H. Dernoeden. 2009. Carbohydrate metabolism in creeping bentgrass as influenced by spring and summer coring. USGA Turfgrass Environ. Res. Online. 8(6):p. [1-10]. |
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| Web URL(s):
http://usgatero.msu.edu/v08/n06.pdf
Last checked: 03/10/2009
Requires: PDF Reader |
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MSU catalog number: b3952822a |
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