Full TGIF Record # 70986
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Krans, J. V.; Reddy, R. K.; Stewart, B. R.; Wells, D. W.; Goatley, J. M.; Philley, H. W.; Maddox, V. L.
Author Affiliation:Mississippi State University
Title:The effects of five temperature regimes on the growth and physiology of 'Penncross' creeping bentgrass
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 157.
# of Pages:1
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
Keywords:TIC Keywords: Temperatures; Growth; Physiology; Agrostis stolonifera; Clipping weight; Visual evaluation; Photosynthesis; Evapotranspiration; Canopy; Water use
Cultivar Names:Penncross
Abstract/Contents:"Selected growth and physiological parameters of 'Penncross' creeping bentgrass (Agrostis stolonifera var. palustris) swards (2 m long x 0.5 m wide) were determined by growing plants in Soil-Plant-Atmosphere-Research chambers at five day/night temperature regimes (18/10, 23/15, 28/30, 33/25, and 38/30 C) for six weeks. Bentgrass clipping yields were highest at the 18/10 and 23/15 C temperatures, then declined as temperatures increased. Turfgrass quality declined linearly with increase in temperatures. Net photosynthesis (Pn) decreased, and daytime and nighttime dark respiration (Rn) increased as temperatures increased. The daytime and nighttime Rn rates were approximately 50 % greater at the 38/30 C temperature compared to the 18/10 C temperature. Bentgrass Pn light saturation was approximately 30 % of full sun at 18/10 C and less than 5 % of full sun at 38/30 C. Evapotranspiration rates increased as temperature and solar radiation levels increased. Canopy water use efficiency declined as temperature increased due to increase [increased] water loss and reduced Pn. This study suggests that reduced Pn, heighten [heightened] ATP demand (increased Rn), and reduced water use efficiency contributed to reduced bentgrass growth and quality as temperatures increased."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Krans, J. V., R. K. Reddy, B. R. Stewart, D. W. Wells, J. M. Goatley, H. W. Philley, et al. 2000. The effects of five temperature regimes on the growth and physiology of 'Penncross' creeping bentgrass. Annu. Meet. Abstr. p. 157.
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