ISHS Acta Horticulturae 474: III International Symposium on Olive Growing
IONIC RELATIONS AND OSMOTIC ADJUSTMENT IN OLIVE PLANTS UNDER SALINITY STRESS |
| Authors: | M. Tattini, R. Gucci |
| Abstract:
Self-rooted olive plants (cvs. Frantoio and Leccino) were exposed to 0, 100 and 200 mM NaCl in hydroponic culture for 5 weeks. Growth, leaf water relations, cations and soluble carbohydrates content were measured. The two cultivars, differing in leaf salt accumulation, were not significantly different for Na+ uptake, whereas Na+ transport rate was lower in the salt-tolerant cv. Frantoio. Ions largely contributed to the salinity-induced changes in leaf osmotic potential, which decreased earlier in the salt-sensitive cv. Leccino than in the salt-tolerant cv. Frantoio. The contribution of soluble carbohydrates, namely glucose and mannitol, was less important than that of cations. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
