Self-rooted olive plants (cvs. Frantoio and Leccino) were exposed to 0, 100 and 200 mM NaC1 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.
Ionic relations and osmotic adjustment in olive plants under salinity stress
GUCCI, RICCARDO
1999-01-01
Abstract
Self-rooted olive plants (cvs. Frantoio and Leccino) were exposed to 0, 100 and 200 mM NaC1 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
