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| Publication Type | J |
| Authors | Marcum, KB; Pessarakli, M |
| Author Full Name | Marcum, K. B.; Pessarakli, M. |
| Title | Salinity tolerance and salt gland excretion efficiency of bermudagrass turf cultivars |
| Source | CROP SCIENCE |
| Language | English |
| Document Type | Article |
| Keywords Plus | ION RELATIONS; TURFGRASSES; RESPONSES; MECHANISMS; SECRETION; GRASSES; CYNODON; STRESS; WATER |
| Abstract | Need for salt tolerant turfgrasses is increasing due to government mandates requiring use of low quality, secondary water sources for turfgrass irrigation. Objectives of this study were to determine the range in salinity tolerance among modern Cynodon spp. (bermudagrass) turf cultivars, determine if leaf salt gland excretion is an important salinity tolerance mechanism in bermudagrass, and if salinity tolerance is associated with the rate, or efficiency of leaf salt gland excretion. Salinity responses of thirty five bermudagrass turf cultivars [Cynodon daclylon (L.) Pers, and C. dactyloa x Cynodon transvaalensis (Bunt-Davey)] were determined by exposing plants to five salinity levels (0, 15, 30, 45, and 60 dS m(-1)). Salinity tolerance among cultivars was determined by shoot dry weight reduction relative to control plants and by percent green leaf canopy area (GLCA). Salinity resulting in 50% reduction in shoot dry weight (SW50) ranged from 26 to 40 dS m(-1), indicating a wide range in salinity tolerance within this genus. Salt glands were present on both abaxial and adaxial leaf surfaces of all cultivars. Salinity tolerance was negatively correlated with leaf tissue Na+ concentration and positively correlated with leaf salt gland Na+ excretion rate, indicating that salinity tolerance in bermudagrasses is associated with shoot saline ion exclusion and to leaf salt gland excretion efficiency. |
| Author Address | Arizona State Univ, Dep Appl Biol Sci, Mesa, AZ 85212 USA; Univ Arizona, Dep Plant Sci, Tucson, AZ 85721 USA |
| Reprint Address | Marcum, KB (reprint author), Arizona State Univ, Dep Appl Biol Sci, Mesa, AZ 85212 USA. |
| E-mail Address | Kenneth.Marcum@asu.edu |
| ORCID Number | Pessarakli, Mohammad/0000-0002-7662-2258 |
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| Cited Reference Count | 31 |
| Times Cited | 38 |
| Total Times Cited Count (WoS, BCI, and CSCD) | 50 |
| Publisher | CROP SCIENCE SOC AMER |
| Publisher City | MADISON |
| Publisher Address | 677 S SEGOE ROAD, MADISON, WI 53711 USA |
| ISSN | 0011-183X |
| 29-Character Source Abbreviation | CROP SCI |
| ISO Source Abbreviation | Crop Sci. |
| Publication Date | NOV-DEC |
| Year Published | 2006 |
| Volume | 46 |
| Issue | 6 |
| Beginning Page | 2571 |
| Ending Page | 2574 |
| Digital Object Identifier (DOI) | 10.2135/cropsci2006.01.0027 |
| Page Count | 4 |
| Web of Science Category | Agronomy |
| Subject Category | Agriculture |
| Document Delivery Number | 117HI |
| Unique Article Identifier | WOS:000242863500033 |
| Plants associated with this reference |