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The effect of 50 and 100 mmol NaCl concentrations on seed germination, the content of green pigments in seedlings, and on the activity of photosystem 2 in seedlings of maize varieties Zagatala 420, Zagatala 514, Zagatala 68 and Gurur and hybrid Gurur x Zagatala 68 was studied. Plant seeds were germinated under laboratory conditions in Petri dishes and pots with soil using 50 and 100 mmol of sodium chloride solutions. In two-week old seedlings determined the number of photosynthetic pigments and the activity of photosystem II. High concentrations (100 mmol) of NaCl reduced seed germination, pigments number, and photosystem II activity. At a salt concentration of 100 mmol, an increase in the carbohydrate content was noted. Varieties Gurur and Zagatala 68 and their hybrid “Gurur x Zagatala 68” were more tolerant compared to varieties Zagatala 420, and Zagatala 514.
Maas EV, Hoffman GJ. Crop salt tolerance-current assessment. J. Irrig Drain. Div. ASCE. 1977;103:115– 134.
Maas EV, Hoffman GJ, Chaba GD, Poss JA, Shannon MC. Salt sensitivity of corn at various growth stages. Irrig. Sci. 1983;4: 45–57.
Mansour MMF, Salama KHA, Ali FZM, Hadid AF. Cell and plant responses to NaCl in Zea mays cultivars differing in salt tolerance. Gen. Appl. Plant Physiol. 2005; 31:29–41.
Shahzad M, Witzel K, Zorb C, Muhling KH. Growth-related changes in subcellular ion patterns in maize leaves (Zea mays L.) under salt stress. J Agron. Crop Sci. 2012; 198:46–56.
Azevedo Neto AD, Prisco JT, Eneas J, de Abreu CEB, Gomes-Filho E. Effect of salt stress on antioxidative enzymes and lipid peroxidation in leaves and roots of salt-tolerant and salt sensitive maize varieties. Environ. Exp. Bot. 2006;56:87–94.
Wintermans JEG, De Mots A. Spectrophotometric characteristics of chlorophyll a and b and their phaeophytins in ethanol. Biochimica et Biophysica Acta. 1965;109:448–453.
Flowers TJ, Flowers SA. Why does salinity pose such a difficult problem for plant breeders? Agric. Water Manag. 2005;78: 15–24. doi: 10. 1016.
Bassiouny HM, Bekheta MA. Role of putrescine on growth, regulation of stomatal aperture, ionic contents and yield by two wheat cultivars under salinity stress. Egypt J. Physiol. Sci. 2001;2–3:239–258.
Munns R, James RA, Läuchli A. Approaches to increasing the salt tolerance of wheat and other cereals. J. Exp. Bot. 2006;57:1025–1043.
Dorothea B, Ramanjulu S. Drought and Salt Tolerance in Plants Critical Reviews in Plant Sciences. 2005;24:23–58.
Farooq M, Hussain M, Wakeel A, Kadambot HM. Siddique. Salt stress in maize: effects, resistance mechanisms, and management. A review. Agronomy for Sustainable Development, Springer Verlag/EDP Sciences/INRA. 2015;35(2): 461–481.
Ingram J, Chandler JW, Gallagher L, Salamini F, Bartels D. Analysis of cDNA clones encoding sucrose-phosphate synthase in relation to sugar interconversions associated with dehydration in the resurrection plant Craterostigma plantagineum Hochst. Plant Physiol. 1997;115:113–121.