Abstract
Salinity-calcium interactions, which have been shown to be important in plants grown in dryland saline soils of the Canadian prairies, were studied in two species differing in salt tolerance. In solution culture, wheat showed a greater reduction in growth and a higher incidence of foliar Ca deficiency symptoms than barley when grown under MgSO4 or Na2SO4 plus MgSO4 salt stress. Amendment of the saline solution with Ca to increase the Ca/(Na+Mg) ratio ameliorated the effects of salt, but more so in wheat than in barley. At least part of the difference in salt tolerance between the two species must therefore relate to species differences in the interaction of salinity and Ca nutrition. The greater response of wheat to Ca was not due to a lower Ca status in leaf tissue; on the contrary, although Ca amendments improved tissue Ca/(Na+Mg) ratios in both species, salinized wheat had equivalent or higher Ca content, and higher Ca/(Na+Mg) ratios than did barley. The higher Ca requirement of wheat is apparently specific to a saline situation; at low salinity, wheat growth was not reduced as extensively as that of barley as Ca/(Na+Mg) ratio was decreased. High night-time humidity dramatically improved wheat growth under saline conditions, but increasing the Ca concentration of the saline solution had no effect on growth in the high humidity treatment. Membrane leakage from leaf tissue of wheat grown under saline conditions was increased compared to tissue from non-saline plants. Plants grown in Ca-amended saline solutions showed no increase in membrane leakage. These results confirm the importance of Ca interaction with salinity stress, and indicate differences in species response.
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References
Carter M R, Webster G R and Cairns R R 1979 Calcium deficiency in some solonetzic soils of Alberta. J. Soil Sci. 30, 161–174.
Clarkson D T and Hanson J B 1980 The mineral nutrition of higher plants. Annu. Rev. Plant Physiol. 31, 239–298.
Cramer G R, Läuchli A and Polito V S 1985 Displacement of Ca2+ by Na+ from the plasmalemma of root cells. A primary response to salt stress? Plant Physiol. 79, 207–211.
Fowler D B and Hamm J W 1980 Crop response to saline soil conditions in the parkland area of Saskatchewan. Can. J. Soil Sci. 60, 439–449.
Greenway H and Munns R 1980 Mechanisms of salt tolerance in nonhalophytes. Annu. Rev. Plant Physiol. 31, 149–190.
Grieve C M and Fujiyama H 1987 The response of two rice cultivars to external Na/Ca ratio. Plant and Soil 103, 245–250.
Grieve C M and Maas E V 1988 Differential effects of sodium/calcium ratio on sorghum genotypes. Crop Sci. 28, 659–665.
Hoffman G J and Jobes J A 1978 Growth and water relations of cereal crops as influenced by salinity and relative humidity. Agron. J. 70, 765–769.
Janzen H H and Chang C 1987 Cation nutrition of barley as influenced by soil solution composition in a saline soil. Can. J. Soil Sci. 67, 619–629.
Kawasaki T and Moritsugu M 1978 Effect of calcium on salt injury in plants. 2 Barley and rice. Ber. Ohara. Inst. Landw. Biol., Okayama Univ. 17, 73–81.
Kawasaki T and Moritsugu M 1979 A characteristic symptom of calcium deficiency in maize and sorghum. Comm. Soil Sci. Plant Anal. 10, 41–56.
Kent L M and Läuchli A 1985 Germination and seedling growth of cotton: salinity-calcium interactions. Plant Cell Environ. 8, 155–159.
Key J L, Kurtz L T and Tucker B B 1962 Influence of ratio of exchangeable calcium-magnesium on yield and composition of soybeans and corn. Soil Sci. 93, 265–270.
Lauter D J and Munns D N 1987 Salt sensitivity of chickpea during vegetative growth and at different humidities. Aust. J. Plant Physiol. 14, 171–182.
Leopold A C and Willing R P 1984 Evidence for toxicity effects of salt on membranes. In Salinity Tolerance in Plants. Strategies for Crop Improvement. Eds. R C Staples and G H Toenniessen. pp 67–76. Wiley Interscience, New York.
Lewin J and Reimann B E F 1969 Silicon and plant growth. Annu. Rev. Plant Physiol. 20, 289–304.
Lynch J and Läuchli A 1985 Salt stress disturbs the calcium nutrition of barley (Hordeum vulgare L.). New Phytol. 99, 345–354.
Lynch J, Cramer G R and Läuchli A 1987 Salinity reduces membrane associated calcium in corn root protoplasts. Plant Physiol. 83, 390–394.
Lynch J and Läuchli A 1988 Salinity affects intracellular calcium in corn root protoplasts. Plant Physiol. 87, 351–356.
Maas E V and Hoffman G J 1977 Crop salt tolerance-Current assessment. J. Irrig. Drainage Div. ASCE 103, 115–134.
Maas E V and Grieve C M 1987 Sodium-induced calcium deficiency in salt-stressed corn. Plant Cell Environ. 10, 559–564.
Madhok O P and Walker R B 1969 Magnesium nutrition of two species of sunflower. Plant Physiol. 44, 1016–1022.
Mahammed S, Akbar M and Neve H V 1987 Effect of Na/Ca and Na/K ratios in saline culture solution on the growth and mineral nutrition of rice (Oryza sativa L.). Plant and Soil 104, 57–62.
Mengel K and Kirkby E A 1987 Principles of Plant Nutrition. 4th ed. International Potash Institute, Bern, Switzerland, 687 p.
Ohno T and Grunes D L 1985 Potassium-magnesium interactions affecting nutrient uptake by wheat forage. Soil Sci. Soc. Am. J. 49, 685–690.
Pitman M G 1984 Transport across the root and shoot/root interactions. In Salinity Tolerance in Plants. Strategies for Crop Improvement. Eds. R C Staples and G H Toenniessen. pp. 93–123. Wiley-Interscience, New York.
Proctor J, Johnston W R, Cottan D A and Wilson A B 1981 Field-capacity water extracts from serpentine soils. Nature 294, 245–246.
Stavarek S J and Rains D W 1984 Cell culture techniques: selection and physiological studies of salt tolerance. In Salinity Tolerance in Plants. Strategies for Crop Improvement. Eds. R C Staples and G H Toenniessen. pp 321–334. Wiley-Interscience, New York.
Strogonov B P 1964 Physiological Basis of Salt Tolerance of Plants. Israel Program for Scientific Translations, Jerusalem, 279 p.
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Ehret, D.L., Redmann, R.E., Harvey, B.L. et al. Salinity-induced calcium deficiencies in wheat and barley. Plant Soil 128, 143–151 (1990). https://doi.org/10.1007/BF00011103
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DOI: https://doi.org/10.1007/BF00011103