Full TGIF Record # 17221
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Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/01904168909364001#.UnJ-nBDZUxE
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    Notes: Guide page with abstract
Publication Type:
Author(s):Meyer, M. J.; Smith, M. A. L.; Knight, S. L.
Author Affiliation:Meyer: Graduate Research Assistant; Smith and Knight: Assitant Professor, Department of Horticulture, University of Illinois, Urbana, IL
Title:Salinity effects on St. Augustinegrass: A novel system to quantify stress response
Source:Journal of Plant Nutrition. Vol. 12, No. 7, 1989, p. 893-908.
# of Pages:16
Publishing Information:New York, New York: Marcel Dekker, Inc.
Related Web URL:http://www.tandfonline.com/doi/abs/10.1080/01904168909364001#.UnJ-dBDZUxE
    Last checked: 10/31/2013
    Notes: Abstract only
Keywords:TIC Keywords: Stenotaphrum secundatum; Salt stress; Osmotic adjustment; Growth rate; Osmotic potential
Abstract/Contents:"An objective and quantitative batch nutrient culture system was developed to assess responses of St. Augustinegrass (Stenotaphrum secundatum [Walt.] Kuntze) cultivars 'Seville' (saline tolerant) and 'Floratam' (saline sensitive) to salt stress. Vessels containing individual grass plugs growing in solution culture were randomized in a walk-in growth chamber. Nutrient solutions were supplemented weekly with NaCl to gradually increase the conductivity over a three week period to treatment levels (2.4 [control], 12.4, 22.4, and 32.4 dS m-1). Plants were sampled at the onset, and at four and eight weeks during the experiment. Cell sap was extracted from grass blades and measured with a vapor pressure osmometer to determine osmorality and osmotic adjustment. Length and area of sample shoot and root systems and foliage color changes were measured using an adaptation of video image analysis, and dry weight (DW) was measured to determine relative growth rate (RGR). 'Seville' responded to increasing salt concentration with uniform stepwise increases in cell osmolarity, whereas 'Floratam' showed strong depression of cell osmotic potential only in the highest conductivity treatment. At high salt levels, overall shoot development was initially more inhibited for 'Floratam', although RGR analysis indicated recovery in the susceptible cultivar after long salt stress duration. 'Seville' reacted to saline stress with increased root length, whereas roots were actually stunted in saline treatments for 'Floratam'. Stress induced an increase in the optical density of grass blades for both cultivars although foliage color was not visibly affected. A positive linear correlation (r = 0.81-0.97) was obtained between shoot area as determined by image analysis versus DW measurements. Use of this novel system maximizes assessment of turfgrass stress responses, and quantification of resistance characteristics." sample shoot and rooth
Note:Pictures, b/w
See Also:Other items relating to: SALTT
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Meyer, M. J., M. A. L. Smith, and S. L. Knight. 1989. Salinity effects on St. Augustinegrass: A novel system to quantify stress response. J. Plant Nutr. 12(7):p. 893-908.
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DOI: 10.1080/01904168909364001
Web URL(s):
    Last checked: Item not verified
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
    Notes: Guide page with abstract
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MSU catalog number: b2516613a
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