Water quantity and quality are major issues of concern around the world, particularly in arid and semiarid areas where water shortages have resulted from rapid urbanization, agriculture, and/or industry (Huang et al., 2014). Elevated salinity is often an agronomic problem associated with use of recycled water sources (Harivandi, 2008), overuse of aquifers and/or saltwater intrusion (Carrow et al., 2001a; Moreaux and Reynaud, 2001), or may result from capillary rise of salts into the root zone (Armstrong et al., 1996). Salts can negatively affect plant development by damaging physiological processes through ion toxicity, ion imbalances, osmotic stress, or reduced soil permeability (Carrow et al., 2001a).
In the southern United States, landscape water conservation programs have been developed by municipalities and water purveyors to help alleviate pressures on potable water supplies. As a result, recycled wastewater is rapidly becoming a primary source of irrigation for turfgrass acreages including golf courses, parks, and athletic fields (Devitt et al., 2004). According to the Golf Course Superintendents Association of America’s Environmental Institute for Golf Survey (Golf Course Superintendents Association of America, 2015), recycled water has become the primary irrigation source used by golf courses in both the southeastern and southwestern regions (35% of facilities in each region) of the United States. Increased regulations on direct discharge of effluent have also resulted in a growing number of communities throughout the country providing recycled wastewater to residences and commercial properties for use in landscape irrigation (Rojeski and Luster-Teasley, 2008).
Turfgrasses are generally well suited for recycled wastewater because they function as biological filters that can assimilate excess nutrients and, to some extent, salts from saline water (Hayes et al., 1990). Bermudagrass, seashore paspalum, zoysiagrass, and st. augustinegrass are four of the most widely used turf species in tropical and subtropical regions (Uddin and Juraimi, 2013). However, there have been limited published studies focused on evaluating comparative salinity tolerance and recovery attributes among many of the currently used cultivars of these species. Such information is important both for proper species and cultivar selection, as well as for improving and developing superior warm-season turfgrasses through breeding efforts (Abraham et al., 2008). Therefore, the objectives of this research were to evaluate comparative salinity tolerance and recovery attributes after salinity stress among 10 commonly used warm-season turfgrass cultivars representing bermudagrass, zoysiagrass, st. augustinegrass, and seashore paspalum.
Abraham, E.M., Meyer, W.A., Bonos, S.A. & Huang, B. 2008 Differential responses of hybrid bluegrass and kentucky bluegrass to drought and heat stress HortScience 43 2191 2195
Armstrong, A.S.B., Rycroft, D.W. & Tanton, T.W. 1996 Seasonal movement of salts in naturally structured saline-sodic clay soils Agr. Water Mgt. 32 15 27
Carrow, R.N. & Duncan, R.R. 2011 Best management practices for saline and sodic turfgrass soils: Assessment and reclamation. CRC Press, Boca Raton, FL
Carrow, R., Waddington, D. & Rieke, P. 2001a Turfgrass soil fertility and chemical problems: Assessment and problems. Ann Arbor Press, Chelsea, MI
Carrow, R.N., Waddington, D.V. & Rieke, P.E. 2001b Turfgrass soil fertility & chemical problems: Assessment and management. Wiley, Hoboken, NJ
Devitt, D., Morris, R., Kopec, D. & Henry, M. 2004 Golf course superintendents’ attitudes and perceptions toward using reuse water for irrigation in the southwestern United States HortTechnology 14 577 583
Duble, R.L. 1996 Turfgrasses: Their management and use in the southern zone. 2nd ed. Texas A&M University Press, College Station, TX
Golf Course Superintendents Association of America 2015 Water use and conservation practices on U.S. golf courses. Golf course environmental profile phase II, vol. I. Golf Course Superintendents Association of America, Lawrence, KS
Gorham, J., Wyn Jones, R.G. & McDonnell, E. 1985 Some mechanisms of salt tolerance in crop plants, p. 15–40. In: D. Pasternak and A. San Pietro (eds.). Biosalinity in action: Bioproduction with saline water. Developments in Plant and Soil Sciences, vol 17. Springer, Dordrecht
Hayes, A., Mancino, C. & Pepper, I. 1990 Irrigation of turfgrass with secondary sewage effluent: I. Soil and leachate water quality Agron. J. 82 939 943
Huang, B., DaCosta, M. & Jiang, Y. 2014 Research advances in mechanisms of turfgrass tolerance to abiotic stresses: From physiology to molecular biology Crit. Rev. Plant Sci. 33 141 189
Lee, G., Duncan, R.R. & Carrow, R.N. 2004 Salinity tolerance of seashore paspalum ecotypes: Shoot growth responses and criteria HortScience 39 1138 1142
Marcum, K.B., Anderson, S.J. & Engelke, M. 1998 Salt gland ion secretion: A salinity tolerance mechanism among five zoysiagrass species Crop Sci. 38 806 810
Meyer, M., Smith, M. & Knight, S. 1989 Salinity effects on St. Augustinegrass: A novel system to quantify stress response 1 J. Plant Nutr. 12 893 908
Moreaux, M. & Reynaud, A. 2001 Optimal management of a coastal aquifer under saline intrusion. Presented at the First International Conference and Workshop on Saltwater Intrusion and Coastal Aquifers, Monitoring, Modelling, and Management. 23–25 Apr. 2001. Essaouira, Morocco.
Morris, K.N. & Shearman, R.C. 1998 NTEP turfgrass evaluation guidelines: NTEP turfgrass evaluation workshop, p. 1–5. National Turfgrass Evaluation Program, Beltsville, MD
Peacock, C., Dudeck, A. & Wildmon, J. 1993 Growth and mineral content of St. Augustinegrass cultivars in response to salinity J. Amer. Soc. Hort. Sci. 118 464 469
Raymer, P.L., Carrow, R.N. & Wyatt, D.A. 2005 Screening for salt tolerance in seashore paspalum. Proc. Inter. Salinity Forum. 25–27 Apr. 2005. Riverside, CA. p. 129–133
Rojeski, P. Jr & Luster-Teasley, S. 2008 The impact of state regulations on innovative wastewater treatment implementation: Trends for on-site wastewater disposal in North Carolina. World Environmental and Water Resources Congress. <https://ascelibrary.org/doi/abs/10.1061/40976%28316%29123>
Uddin, M.K. & Juraimi, A.S. 2013 Salinity tolerance turfgrass: History and prospects Scientific World J. 2013:409–413.
U.S. Golf Association 2004 USGA recommendations for a method of putting green construction. <http://www.usga.org/course-care/digitalcollections/creating-usga-putting-green.html>
Xiang, M., Moss, J.Q., Martin, D.L., Su, K. & Dunn, B.L. 2017 Evaluating the salinity tolerance of clonal-type bermudagrass cultivars and an experimental Selection HortScience 52 185 191