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| Web URL(s): | http://usgatero.msu.edu/v07/n22.pdf
Last checked: 02/25/2008
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 two summer irrigation practices |
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| Source: | USGA Turfgrass and Environmental Research Online. Vol. 7, No. 22, November 15 2008, p. [1-9]. |
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| Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Metabolism; Carbohydrates; Irrigation practices; Irrigation methods; Plant water relations; Water uptake; Water rationing; Summer; Photosynthesis; Respiration; Sand-based root zones
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| Cultivar Names: | Agrostis stolonifera L. |
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| Abstract/Contents: | "This field study was conducted to investigate carbon metabolic responses to deep and infrequent (DI) versus light and frequent (LF) irrigation in 'Providence' creeping bentgrass (Agrostis stolonifera L). Light frequent irrigation was performed daily to wet soil to a depth of 4 to 6 cm (1.6-2.4"), whereas deep infrequent irrigation was performed at leaf wilt to wet soil to a depth of 24 cm (> 9.5"). The creeping bentgrass was seeded into a sand-based rootzone in 2005 and was maintained as a putting green. Canopy net photosynthesis (Pn) and whole plant respiration (Rw) were monitored, and water soluble carbohydrates [WSC (i.e., glucose, fructose, and sucrose)], storage carbohydrates [SC (i.e., fructan and starch)], and total nonstructural carbohydrates [TNC (i.e., sum of water soluble and storage sugars)] in leaf and root tissue were quantified. The results indicate: Creeping bentgrass subjected to deep infrequent irrigation had a lower canopy net photosynthesis and generally similar whole respiration compared to light frequent-irrigated bentgrass. Deeply and infrequently irrigated bentgrass generally had greater levels of water soluble carbohydrate and total nonstructural carbohydrates in leaf tissue in 2006 and similar levels in 2007 compared to light infrequent-irrigated bentgrass. Leaf soluble carbobhydrate levels were higher in deep infrequent than light frequent-irrigated bentgrass in both years. Creeping bentgrass roots subjected to dry infrequent-irrigation generally had greater soluble carbohydrate and total nonstructural carbohydrate levels in both years thanwere found in light frequent-irrigated plants. Root water soluble carbohydrate (WSC) levels were higher (2006) or similar (2007) in deep infrequent versus light frequent-irrigated bentgrass. Irrigating creeping bentgrass at wilt, rather than daily to maintain moist soil, generally resulted in higher carbohydrate levels in leaves and roots, which may enable creeping bentgrass to better tolerate and recover from drought andother stresses." |
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| Language: | English |
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| References: | 12 |
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| See Also: | Other Reports from this USGA research project: 2006-14-322 |
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| Note: | Reprint appears in Australian Turfgrass Management Journal, 11(3) May/June 2009, p. 42-46 with variant title "Carbohydrate metabolism in creeping bentgrass as influenced by irrigation practices"
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. 2008. Carbohydrate metabolism in creeping bentgrass as influenced by two summer irrigation practices. USGA Turfgrass Environ. Res. Online. 7(22):p. [1-9]. |
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| Web URL(s):
http://usgatero.msu.edu/v07/n22.pdf
Last checked: 02/25/2008
Requires: PDF Reader |
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MSU catalog number: b3952822a |
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