Full TGIF Record # 70989
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Qian, Y. L.; Wilhelm, S. J.; Marcum, K. B.
Author Affiliation:Qian and Wilhelm: Colorado State University; and Marcum: University of Arizona
Title:Comparative response of two Kentucky bluegrass cultivars to salinity stress
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. 158.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Poa pratensis; Soil salinity; Salt stress; Salt tolerance; Osmotic potential; Leaf firing; Root weight
Cultivar Names:Kenblue; Limousine
Abstract/Contents:"In this study, we investigated the growth and physiological responses of 'Limousine' and 'Kenblue' Kentucky bluegrass to a range of salinity levels. Grasses were grown in a solution culture system with salinity levels at 2.2, 5.2, 8.2, 11.2, and 14.2 dS/m for over 10 wk. With increasing salinity, both cultivars exhibited increased leaf firing. However, Limousine exhibited less leaf firing than Kenblue at > 5.2 dS/m, indicating that Limousine has better salinity tolerance. The electrical conductivity that caused 25% shoot growth reduction was 3.2 dS/m for Kenblue and 4.7 dS/m for Limousine. At 8.2 dS/m, Limousine produced 50% higher root mass than that of Kenblue. The water relations diverged between cultivars, as Limousine showed higher leaf water and osmotic potentials, as well as more positive turgor at 8.2 and 14.2 dS/m. Leaf proline content increased with increasing salinity, being higher in Kenblue than Limousine at 8.2, 11.2, and 14.2 dS/m, suggesting that proline accumulation is an indication of salt injury in Kentucky bluegrass."
See Also:Other items relating to: SALTT
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Qian, Y. L., S. J. Wilhelm, and K. B. Marcum. 2000. Comparative response of two Kentucky bluegrass cultivars to salinity stress. Annu. Meet. Abstr. p. 158.
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