Full TGIF Record # 173929
Item 1 of 1
DOI:10.21273/HORTSCI.45.11.1747
Publication Type:
i
Refereed
Author(s):Wang, Sheng; Zhang, Qi
Author Affiliation:Department of Plant Sciences, North Dakota State University, Fargo, ND
Title:Responses of creeping bentgrass to salt stress during in vitro germination
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 45, No. 11, November 2010, p. 1747-1750.
# of Pages:4
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Agrostis stolonifera; Effluent water use; Disease susceptibility; Variety trials; Germinability; Growth rate; Salinity; Salt tolerance; Seed germination
Abstract/Contents:"Many golf courses and turfgrass managers use recycled water, which contains high salts, as part or a sole irrigation source to lower costs and comply with governmental restrictions on water use. High salinity negatively affects turfgrass performance. Using salt-tolerant species or cultivars is one the most effective methods to address salinity problems. Twenty-six commercially available creeping bentgrass (Agrostis stolonifera) cultivars were evaluated for salt tolerance during in vitro germination on 1% agar media supplemented with NaCl at 0, 5, 10, 15, or 20 g?L-1 at 25/15 ?C (day/night) under fluorescent light (36 μmol?s-1?m-2) with an 8- to 16-h photoperiod. Significant variations in salinity tolerance were observed among the cultivars. Final germination rate (FGR, %) and daily germination rate (DGR, %/d) decreased linearly or quadratically as salinity levels increased. Declaration, Seaside II, T-1, and Bengal were the most salt-tolerant, requiring salt levels at or greater than 16.0 and 10.0 g?L-1, respectively, to reduce FGR and DGR by 50%. In contrast, 'Tyee', 'Kingpin', and 'SR1150' required average salinity levels of 11.6 and 6.5 g?L-1 to cause 50% reduction in FGR and DGR, respectively, showing that they were the least salt-tolerant cultivars. The largest difference between FGR (1.9%) and DGR (26.2%) reduction under saline conditions was observed at 5 g?L-1, indicating that DGR was more sensitive to salinity changes than FGR. Therefore, DGR might be a more reliable method to be used for salt selection."
Language:English
References:20
See Also:See also related abstract "Responses of creeping bentgrass to salt stress during in vitro germination" 2010 International Annual Meetings: [Abstracts][ASA-CSSA-SSSA], November 1 2010, p. 61800 R=170607 R=170607
Note:Tables
Graphs
See Also:Other items relating to: Salinity Management For Cool Season Grasses
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wang, S., and Q. Zhang. 2010. Responses of creeping bentgrass to salt stress during in vitro germination. HortScience. 45(11):p. 1747-1750.
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DOI: 10.21273/HORTSCI.45.11.1747
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