Full TGIF Record # 63904
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Bunnell, B. T.; Dodd, R. B.; McCarty, L. B.
Author Affiliation:Clemson University
Title:Creeping bentgrass root responses to differing levels of soil CO₂ concentrations
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Salt Lake City, UT: October 31 - November 4, 1999
Source:1999 Annual Meeting Abstracts [ASA/CSSA/SSSA]. Vol. 91, 1999, p. 141.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Agrostis stolonifera; Roots; Physiological responses; Carbon dioxide; Soil aeration; Golf greens; Golf courses; Oxygen diffusion; Threshold values; Toxicity; Root growth
Abstract/Contents:"Soil aeration plays a major role in the growth and development of healthy root systems in highly maintained turfgrass such as creeping bentgrass (Agrostis palustris) golf greens. When soil temperatures increase, root and microbial respiration stimulate CO₂ levels. Soil ODR (Oxygen Diffusion Rate) measures the rate of CO₂ exchange between the soil and atmosphere. When soils become saturated or compacted, the soil ODR decreases allowing for a build up of soil CO₂. Carbon dioxide is known to be toxic to root growth, but a threshold level is not known for creeping bentgrass root injury. Discussions will examine differing gas concentrations of O₂ and CO₂ maintained in the root zone of a sand-based USGA soil. Root growth and overall plant heatlh will be measured. Results will include creeping bentgrass root thresholds to high CO₂ concentrations as well as limited O₂ availability."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bunnell, B. T., R. B. Dodd, and L. B. McCarty. 1999. Creeping bentgrass root responses to differing levels of soil CO₂ concentrations. Annu. Meet. Abstr. 91:p. 141.
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