بررسي اثر شوري بر چند رقم محلي سنجد در استان اصفهان

Effect of salinity on some local cultivars of Russian olive {Etaeagnus angustifolia) In Isfahan province

Russian olive (Elaeagnus angustifolia) is one of the important species that has a special role in vegetation of natural lands of Iran. To investigate resistance of seedlings to salinity, five local cultivars including "Hoofi,Shami,Anabi,Kal aie and Shekari" from two areas in Isfahan province were selected. Cuttings planted in plastic bags in November and placed in greenhouse. The experimental design was a randomized complete block design (RCBD) with two factor (salinity and cultivar) and 4 level of salinity. Every 20 days, inventory was done.Data analyzed and results found that branches length in Annabi cultivar was significantly less than other cultivars but the number of branches was not affected by salinity. Root, shoot and leaf dry weight were affected by salinity, cultivar and interaction between them. Also most of accumulation of Na and CI iones was seen in Hoofi and Shami cultivars and increased by increasing of salinity level. Despite of these, viability of seedlings was considerable and most of them introduced new leaves after fall. Finally Russian olive is appraised as a resistant species to salinity and it seems that species from dry areas are more tolerant.