Univrsity of Tehran Press Iranian Journal of Field Crop Science 2008-4811 53 3 2022 09 23 Effects of sodium chloride on growth and physiological properties of three potato cultivars under in vitro condition Effects of sodium chloride on growth and physiological properties of three potato cultivars under in vitro condition 41 52 89727 10.22059/ijfcs.2021.321536.654818 FA Tooba Karami Agriculture Faculty of Shirvan, University of Bojnord, Iran Mohammad Zare Mehrjerdi Agriculture Faculty of Shirvan, University of Bojnord, Iran Mahmoud Ghorbanzadeh Neghab Agriculture Faculty of Shirvan, University of Bojnord, Iran Journal Article 2021 04 06 Due to the possibility of environmental factors controll, studying the physiological effects of salinity under in vitro conditions can be a good solution for salinity tolerant cultivars selection. This experiment was conducted as factorial based on complete randomized design with four replications. Factors included sodium chloride concentrations (0, 2, 4, 6, 8 and 10 g.l-1) and three potato cultivars (Agria, Fontane and Sante). Results showed that the response of the studied cultivars to different salinity levels was different. In general, salinity stress reduced seedling, stem and root dry weights, stem length, number of nodes and photosynthetic pigments. Leaf area and stem diameter showed different responses to different levels of stress. In response to the salt concentration increase, Sodium and potassium concentrations increased in the stem but the same was not happened in leaves. Among the studied cultivars and despite having the highest level of sodium in stems and leaves under stress conditions, Sante and Agria, tolerated higher salinity than Fontane. It seems that the ability to absorb salt and transfer it to the plant can play an important role in salinity tolerance under in vitro conditions. Due to the possibility of environmental factors controll, studying the physiological effects of salinity under in vitro conditions can be a good solution for salinity tolerant cultivars selection. This experiment was conducted as factorial based on complete randomized design with four replications. Factors included sodium chloride concentrations (0, 2, 4, 6, 8 and 10 g.l-1) and three potato cultivars (Agria, Fontane and Sante). Results showed that the response of the studied cultivars to different salinity levels was different. In general, salinity stress reduced seedling, stem and root dry weights, stem length, number of nodes and photosynthetic pigments. Leaf area and stem diameter showed different responses to different levels of stress. In response to the salt concentration increase, Sodium and potassium concentrations increased in the stem but the same was not happened in leaves. Among the studied cultivars and despite having the highest level of sodium in stems and leaves under stress conditions, Sante and Agria, tolerated higher salinity than Fontane. It seems that the ability to absorb salt and transfer it to the plant can play an important role in salinity tolerance under in vitro conditions.

https://ijfcs.ut.ac.ir/article_89727_86cf5a81e3eb696f916f4ffb72d412b2.pdf