Full TGIF Record # 97230
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Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/39/5/article-p1143.xml?rskey=36ckQf
    Last checked: 11/19/2019
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Author(s):Lee, Geungjoo; Carrow, Robert N.; Duncan, Ronny R.
Author Affiliation:Lee: Postdoctoral Associate, Center for Applied Genetic Technologies, Athens, Georgia; Carrow and Duncan: Professors, Department of Crop and Soil Sciences, University of Georgia, Griffin, Georgia
Title:Salinity tolerance of selected seashore paspalums and bermudagrasses: Root and verdure responses and criteria
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 39, No. 5, August 2004, p. 1143-1147.
# of Pages:5
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Salt tolerance; Paspalum vaginatum; Cynodon dactylon; Cynodon transvaalensis; Roots; Verdure; Salinity; Cultivar evaluation; Cultivars
Abstract/Contents:"Seashore paspalum (Paspalum vaginatum Swartz) is a warm season turfgrass that survives in sand dunes along coastal sites and around brackish ponds or estuaries. The first exposure to salt stress normally occurs in the rhizosphere for persistent turfgrass. Information on diversity in salinity tolerance of seashore paspalums is limited. From Apr. to Oct. 1997, eight seashore paspalum ecotypes (SI 94-1, SI 92, SI 94-2, `Sea Isle 1', `Excalibur', `Sea Isle 2000', `Salam', `Adalayd') and four bermudagrass (Cynodon dactylonC. transvaalensis Butt-Davy) cultivars (`Tifgreen', `Tifway', `TifSport', `TifEagle') were invesitgated for levels of salinity tolerance based on root and verdure responses in nutrient/sand culture under greenhouse conditions. Different salt levels (1.1 to 41.1 dS路m-1) were created with sea salt. Measurements were taken for absolute growth at 1.1 (ECw0; electrical conductivity of water), 24.8 (ECw24), 33.1 (ECw32), and 41.1 dS路m-1 (ECw40), threshold ECw, and ECw for 25% growth reduction from ECw0 growth (ECw25%). Varying levels of salinity tolerance among the 12 entries were observed based on root, verdure, and total plant yield. Ranges of root characteristics were inherent growth (ECw0) = 0.20 to 0.61 g dry weight (DW); growth at ECw24 = 0.11 to 0.47 g; growth at ECw32 = 0.13 to 0.50 g; growth at ECw40 = 0.13 to 0.50 g; threshold ECw = 3.1 to 9.9 dS路m-1; and ECw25% = 23 to 39 dS路m-1. For verdure, ranges were inherent growth at ECw0 = 0.40 to 1.07 g DW; growth at ECw40 = 0.31 to 0.84 g; and ratio of yields at ECw40 to ECw0 = 0.54 to 1.03. Ranges for total growth were inherent growth at ECw0 = 0.72 to 2.66 g DW; growth at ECw24 = 0.55 to 2.23 g; growth at ECw32 = 0.54 to 2.08 g; growth at ECw40 = 0.52 to 1.66 g; threshold ECw = 2.3 to 12.8 dS路m-1; and ECw25% = 16 to 38 dS路m-1. Significant salinity tolerance differences existed among seashore paspalums and bermudagrasses as demonstrated by root, verdure, and total growth measurements. When grasses were ranked across all criteria exhibiting a significant F test based on root, verdure, and total growth, the most tolerant ecotypes were SI 94-1 and SI 92. Salinity tolerance of bermudagrass cultivars was relatively lower than SI 94-1 and SI 92. For assessing salinity tolerance, minimum evaluation criteria must include absolute growth at ECw0 and ECw40 dS路m-1 for halophytes, but using all significant parameters of root and total yield is recommended for comprehensive evaluation."
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. N. Carrow, and R. R. Duncan. 2004. Salinity tolerance of selected seashore paspalums and bermudagrasses: Root and verdure responses and criteria. HortScience. 39(5):p. 1143-1147.
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DOI: 10.21273/HORTSCI.39.5.1143
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    Last checked: 11/19/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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