Abstract
Salt tolerant citrus rootstocks are extremely important in the area with brackish water and soil. To identify salt tolerant accessions, two well-recognized tolerant and susceptible cultivars, Cleopatra mandarin and Troyer citrange, and 42 genetically diverse citrus accessions from Iran, were evaluated under three levels of sodium chloride (NaCl) including 0, 40 and 90 mM. Five genotypes named G25, G8, G34 (Cleopatra), G42 (Bergamot) and G44 (Sour orange) were the most salinity tolerant based on stress tolerance score. Salinity tolerance was highly correlated with chlorophyll fluorescence (r = 0.55**), Na+ concentration (r=-0.51**), ascorbate peroxidase (r = 0.56**) and leaf necrosis and loss (r=-0.64**). Iranian rootstocks, G8 and G44, were more tolerant than Cleopatra. These results showed that Iran is an appropriate gene pool for salinity tolerance in citrus. The findings of relative gene expression indicated that G44 had salinity tolerance alleles for SLAH, ABCT2 and ABCT3. Considering genotypic and phenotypic results, G44 was recognized as the most salinity tolerant rootstock.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
