Salinity tolerance of bermudagrass (Cynodonspp. L. C. Rich) cultivars and shoot Na, K and Cl contents under a high saline environment
| Autor: | K Razmjoo, Z Adavi, Mostafa Mobli |
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| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | The Journal of Horticultural Science and Biotechnology. 81:1074-1078 |
| ISSN: | 2380-4084 1462-0316 |
| DOI: | 10.1080/14620316.2006.11512174 |
| Popis: | SummaryIncreasing need for salt-tolerant turfgrasses continues due to population growth in arid and semi-arid regions where potable water is limited, while soil and existing water sources are salty. Bermudagrass (Cynodon spp. L. C. Rich) is widely used in these areas. Therefore, this experiment was conducted to evaluate the salt-tolerance of ten cultivars of bermudagrass under a high saline soil and water environment. Five salinity levels of irrigation water (3.30, 6.93, 10.2, 14.8 and 17.8 dS m–1) were prepared and 30 pots were surfaced-irrigated at each salinity level for 1 year. Overall top growth, root growth, K content and K:Na ratio were reduced by 75%, 45%, 77% and 94.5%, respectively; while leaf-firing, shoot Cl and shoot Na concentrations were increased by 4%, 498% and 356%, respectively, when the salinity increased from 3.3 dS m–1 to 17.8 dS m–1. Regarding the salt-tolerance of cultivars, ‘Tifway’ was superior in top growth, percentage leaf-firing, Na uptake and K:Na ratio, ‘ISF2’ in root growth... |
| Databáze: | OpenAIRE |
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