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DOI:10.21273/HORTSCI.39.5.1138
Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/39/5/article-p1138.xml?rskey=FZePqV
    Last checked: 11/19/2019
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Publication Type:
i
Refereed
Author(s):Lee, Geungjoo; Duncan, Ronny R.; Carrow, Robert N.
Author Affiliation:Lee: Postdoctoral Associate, Center for Applied Genetic Technologies, Athens, Georgia; Duncan and Carrow: Professors, Department of Crop and Soil Sciences, University of Georgia, Griffin, Georgia
Title:Salinity tolerance of seashore paspalum ecotypes: Shoot growth responses and criteria
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 39, No. 5, August 2004, p. 1138-1142.
# of Pages:5
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Salinity; Salt tolerance; Paspalum vaginatum; Shoot growth; Cynodon dactylon; Cynodon transvaalensis; Cultivar evaluation; Cultivars
Abstract/Contents:"Evaluation of turfgrass salt tolerance is a basic strategy for selecting grasses that can be grown in areas with salt-affected water or soils. Our objectives were to determine the relative salinity tolerances of 32 grasses and to evaluate potential shoot-based criteria for assessing salinity tolerance. Shoot growth responses to salinity of 28 seashore paspalums (Paspalum vaginatum Swartz) and four bermudagrass [Cynodon dactylon (L.) 脳 C. transvalensis Burtt-Davy] cultivars were invesitgated under solution/sand culture in a greenhouse. Turfgrasses were grown in a sea-salt amended nutrient solution. Salinity ranges were 1.1 to 41.1 dS路m-1 based on electrical conductivity of the solution (ECw). Selection criteria to assess salt tolerance were absolute growth at 1.1 (ECw0), 24.8 (ECw24), 33.1 (ECw32), and 41.1 dS路m-1 (ECw40); threshold ECw; ECw for 25% and 50% growth reduction based on ECw0 growth; and leaf firing (LF) at ECw0 and ECw40 (LF0 and LF40, respectively). Significant variations among 32 entries were observed for all shoot responses except threshold ECw. Ranges of values for shoot parameters were: inherent growth at ECw0 = 0.10 to 0.98 g dry weight (10-fold difference); growth at 24.8 dS路m-1 = 0.11 to 0.64 g; growth at 33.1 dS路m-1 = 0.09 to 0.54 g; growth at 41.4 dS路m-1 = 0.06 to 0.35 g; threshold ECw = 3.9 to 12.3 dS路m-1; ECw25 % = 14 to 38 dS路m-1; ECw50% = 22 to 43 dS路m-1; and LF40 = 7% to 41%. Results in this study indicated substantial genetic-based variation in salt tolerance within seashore paspalums. When evaluation of salt tolerance based on shoot responses is attempted at wide salinity levels up to 40 dS路m-1, all seven criteria exhibiting a significant F test can be used. Five entries (SI 92, SI 93-1, SI 91, SI 93-2, SI 89) were ranked in the top statistical grouping for all seven-growth parameters, followed by SI 90 ranked in six out of seven, and three paspalums (SI 94-1, `Sea Isle 1', and `Taliaferro') were ranked in five out of seven categories."
Language:English
References:38
Note:Tables
Graphs
See Also:Other items relating to: Seashore Paspalum - Since 2000

Other items relating to: SALTT
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lee, G., R. R. Duncan, and R. N. Carrow. 2004. Salinity tolerance of seashore paspalum ecotypes: Shoot growth responses and criteria. HortScience. 39(5):p. 1138-1142.
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DOI: 10.21273/HORTSCI.39.5.1138
Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/39/5/article-p1138.xml?rskey=FZePqV
    Last checked: 11/19/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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