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DOI: | 10.21273/HORTSCI.45.12.1882 |
Publication Type:
| Refereed |
Author(s): | Marcum, Kenneth B.;
Pessarakli, Mohammad |
Author Affiliation: | Marcum: Centre for Urban Greenery and Ecology, National Parks Board, Singapore; Pessarakli: School of Plant Sciences, University of Arizona, Tucson, AZ |
Title: | Salinity tolerance of ryegrass turf cultivars |
Section: | Turf management Other records with the "Turf management" Section
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Source: | HortScience. Vol. 45, No. 12, December 2010, p. 1882-1884. |
Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
# of Pages: | 3 |
Keywords: | TIC Keywords: Clipping weight; Cultivar evaluation; Lolium; Percent living ground cover; Root weight; Salt tolerance; Shoot growth
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Abstract/Contents: | "Relative salinity tolerance of 32 perennial (Lolium perenne L.) and three intermediate (Lolium xhybridum Hausskn.) ryegrass turf cultivars was determined by measuring turf leaf clipping dry weight, root weight, rooting depth, and percent green leaf canopy area relative to control (non-salinized) plants. After gradual acclimation, grasses were exposed to moderate salinity stress (6 dS·m-1) for 6 weeks through solution culture in a controlled environment greenhouse. Shoot parameters were highly correlated, being mutually effective predictors of salinity tolerance. After 6 weeks of salinity stress, percent green leaf canopy area (GL) was correlated with relative (to control) final week leaf clipping weight (LWREL) (r = 0.90) and with linear slope of decline of weekly leaf clipping weight over the 6-week exposure to salinity (LWSLOPE) (r = 0.66). Rooting parameters root dry weight (RW) and rooting depth (RD), although significantly correlated with all shoot parameters, were only moderately effective in predicting relative salinity tolerance.'Paragon' was the most salt-tolerant as indicated by all parameters. Other salt-tolerant cultivars included Divine and Williamsburg. Intermediate ryegrass cultivars (Froghair, Midway, and Transist) were invariably found within the most salt-sensitive category for all parameters." |
Language: | English |
References: | 27 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Marcum, K. B., and M. Pessarakli. 2010. Salinity tolerance of ryegrass turf cultivars. HortScience. 45(12):p. 1882-1884. |
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| DOI: 10.21273/HORTSCI.45.12.1882 |
| MSU catalog number: b2217685a |
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