Evaluation of Inter-Specific Hybrid of P. atlantica and P. vera L. cv. ‘Badami - Riz-e-Zarand’ as Pistachio rootstock to Salinity Stress According to Some Growth Indices and Eco-physiological and Biochemical Parameters

In order to evaluate the inter-specific hybrid of P. atlantica Desf. and P. vera L. cv. ‘Badami- Riz-e- Zarand’ to salinity stress, a factorial experiment was conducted based on completely randomized design with 0, 60 and 120 mM of salinity levels of sodium chloride, calcium chloride and magnesium chloride (3:2:1) with four replications on ‘Qazvini’, ‘Badami-Riz-e-Zarand’ and inter-specific of P. atlantica Ч P. vera cv. ‘Badami-Rize-Zarand’ rootstocks of pistachio. The results showed that salinity has increased proline content of leaves. Chlorophyll index, relative water content of leaf, leaf area, shoot and root fresh and dry weight, stem diameter and number of leaves were decreased by increasing salinity. Rootstocks responded differently to salinity, so that the most reduction in chlorophyll index, leaf area and leaf number were observed in ‘Badami-Riz-e-Zarand’ rootstock and the least reduction was observed in the hybrid

The Evaluation of Inter-Specific Hybrid of P. atlantica × P. vera cv. 'Badami Zarand' as a Pistachio Rootstock to Salinity Stress

Abstract In order to evaluate the inter-specific hybrid of P. atlantica × P. vera cv. 'Badami Zarand' to salinity stress, an experiment was conducted as a factorial based in a completely randomized design with 0, 60, 120 mM salinity levels of NaCl 2 , CaCl 2 and MgCl 2 (3:2:1) on two rootstocks 'Qhazvini' and 'Badami Zarand' and an inter-specific hybrid of P. atlantica × P. vera cv. 'Badami Zarand'. Mineral concentrations of sodium (Na), chloride (Cl), magnesium (Mg), calcium (Ca), copper (Cu) and iron (Fe) in shoot increased at 120 mM salinity level; however, the phosphorus (P) concentration in root decreased. Rootstocks had significant differences in the concentrations of elements of shoot. The highest concentrations of Na and Cl were observed in 'Badami Zarand' and 'Qhazvini'rootstocks, and the lowest was observed in hybrid rootstock. The highest concentration of Mg was observed in hybrid rootstock, and the lowest was observed in 'Badami Zarand'. Due to restriction in the absorption and transport of chloride and sodium to the shoot, hybrid rootstock could tolerate more salinity than 'Badami Zarand' and 'Qhazvini' rootstocks