Anser Ali
Sub-Campus D.G. Khan University of Agriculture, Faisalabad, Pakistan
Shahzad M.A. Basra
Department of Crop Physiology, University of Agriculture, Faisalabad, Pakistan
Safdar Hussain
Sub-Campus D.G. Khan University of Agriculture, Faisalabad, Pakistan
Javaid Iqbal
Sub-Campus D.G. Khan University of Agriculture, Faisalabad, Pakistan
M. Ahmad Alias Haji A. Bukhsh
Agriculture Adaptive Research Complex, Dera Ghazi Khan, Pakistan
Muhammad Sarwar
Sub-Campus D.G. Khan University of Agriculture, Faisalabad, Pakistan
ABSTRACT
Soil salinity is a huge problem negatively affecting physiological and metabolic processes in plant life, ultimately diminishing growth and yield. Salts taken up by the plants influence the plant growth by inducing adverse effects on different physiological and biochemical processes, including turgor, photosynthesis and enzymatic activities. Mechanisms responsible for reduction in plant growth under salt stress are: (1) Osmotic stress, (2) Specific ion toxicity, (3) Nutritional imbalance and (4) Oxidative stress. Different approaches such as introduction of new genes into genotypes responsible for salt tolerance, screening of large international collections and conduct of field trials on selected genotypes, conventional and non-conventional breeding methods and adequate regulation of mineral nutrients have been employed to enhance salinity tolerance in plants. Saline agriculture and exogenous application of mineral elements including Si has been professed as cost effective approach to ameliorate the salt stress in cereal crops like wheat. Si is categorized as a beneficial element in plant biology. It is unquestionably an important requirement for the normal growth of many plants and must be called as Quasi essential. Si amendment also plays a pivotal role to enhance chlorophyll content, stomatal conductance, photosynthesis and rigidity of plants under stressful conditions. There are different mechanisms by which Si mediates salinity tolerance in plants. It maintains the plant water status under saline conditions. It reduces uptake of Na+ by improving K+: Na+ and also alleviates the toxicity of other heavy metals. It application helps to improve the defensive system of the plants by producing anti-oxidants which in turn detoxify reactive oxygen species. Morphological and physiological improvements in plants were observed due to Si deposition within plant body under salt stress conditions. Silicon improves growth and dry matter production under salt stress conditions. Its application also enhances the crop performance against biotic stress. It is, therefore, suggested that supplemental application of Si must be included in salt stress alleviation management techniques.
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How to cite this article
Anser Ali, Shahzad M.A. Basra, Safdar Hussain, Javaid Iqbal, M. Ahmad Alias Haji A. Bukhsh and Muhammad Sarwar, 2012. Salt Stress Alleviation in Field Crops Through Nutritional Supplementation of Silicon. Pakistan Journal of Nutrition, 11: 735-753.
DOI: 10.3923/pjn.2012.735.753
URL: https://scialert.net/abstract/?doi=pjn.2012.735.753
DOI: 10.3923/pjn.2012.735.753
URL: https://scialert.net/abstract/?doi=pjn.2012.735.753
REFERENCES
- Agurie, S., W. Agata, F. Kubota and P.B. Kaufman, 1992. Physiological roles of silicon in photosynthesis and dry matter production in rice plants. I. Effects of silicon and shading treatments. Jpn. J. Crop Sci., 61: 200-206.
Direct Link - Ahmad, R., S.H. Zaheer and S. Ismail, 1992. Role of silicon in salt tolerance of wheat (Triticum aestivum L.). Plant Sci., 85: 43-50.
CrossRef - Akram, M., M. Hussain, S. Akhtar and E. Rasul, 2002. Impact of NaCl salinity on yield components of some wheat accessions/variety. Int. J. Agric. Biol., 4: 156-158.
Direct Link - Akram, M.S., H.U.R. Athar and M. Ashraf, 2007. Improving growth and yield of sunflower (Helianthus annuus L.) by foliar application of potassium hydroxide (KOH) under salt stress. Pak. J. Bot., 39: 769-776.
Direct Link - Al-Aghabary, K., Z. Zhu and Q. Shi, 2005. Influence of silicon supply on chlorophyll content, chlorophyll fluorescence and antioxidative enzyme activities in tomato plants under salt stress. J. Plant Nutr., 27: 2101-2115.
CrossRefDirect Link - Anderson, D.L. and O. Sosa Jr., 2001. Effect of silicon on expression of resistance to sugarcane borer (Diatraea saccharalis L.). J. Am. Soc. Sugarcane Technol., 21: 43-50.
Direct Link - Asch, F., M. Dingkuhn, K. Dorffling and K. Miezan, 2000. Leaf K/Na ratio predicts salinity induced yield loss in irrigated rice. Euphytica, 113: 109-118.
Direct Link - Ashraf, M. and P.J.C. Harris, 2004. Potential biochemical indicators of salinity tolerance in plants. Plant Sci., 166: 3-16.
CrossRefDirect Link - Awada, S., W.E. Campbell, L.M. Dudley, J.J. Jurinak and M.A. Khanb, 1995. Interactive effects of sodium chloride, sodium sulfate, calcium sulfate and calcium chloride on snapbean growth, photosynthesis and ion uptake. J. Plant Nutr., 18: 889-900.
CrossRefDirect Link - Bar, Y., A. Apelbaum, U. Kafkafi and R. Goren, 1997. Relationship between chloride and nitrate and its effect on growth and mineral composition of avocado and citrus plants. J. Plant Nutr., 20: 715-731.
CrossRefDirect Link - Becana, M., D.A. Dalton, J.F. Moran, I. Iturbe-Ormaetxe, M.A. Matamoros and M.C. Rubio, 2000. Reactive oxygen species and antioxidants in legume nodules. Physiol. Plant., 109: 372-381.
CrossRef - Blumwald, E., 2000. Sodium transport and salt tolerance in plants. Curr. Opin. Cell Biol., 12: 431-434.
CrossRefDirect Link - Bradbury, M. and R. Ahmad, 1990. The effect of silicon on the growth of Prosopis juliflora growing in saline soil. Plant Soil., 125: 71-74.
Direct Link - Cakmak, I., 2005. The role of potassium in alleviating detrimental effects of abiotic stresses in plants. J. Plant Nutr. Soil Sci., 168: 521-530.
CrossRef - Cheeseman, J.M., 1988. Mechanism of salinity tolerance in plants. Ann. Rev. Plant Physiol., 87: 547-550.
Direct Link - Cherif, M., A. Asselin and R.R. Belanger, 1994. Defense responses induced by soluble silicon in cucumber roots infected by Pythium spp. Phytopathology, 84: 236-242.
CrossRefDirect Link - Chinnusamy, V., A. Jagendorf and J.K. Zhu, 2005. Understanding and improving salt tolerance in plants. Crop Sci., 45: 437-448.
Direct Link - Choi, D.W., E.M. Rodriguez and T.J. Close, 2002. Barley Cbf3 gene identification, expression pattern and map location. Plant Physiol., 129: 1781-1787.
CrossRefDirect Link - Cocker, K.M., D.E. Evans and M.J. Hodson, 1998. The amelioration of aluminium toxicity by silicon in higher plants: Solution chemistry or an in planta mechanism? Physiol. Plant., 104: 608-614.
CrossRef - Comba, M.E., M.P. Benavides and M.L. Tomaro, 1998. Effect of salt stress on antioxidant defence system in soybean root nodules. Aust. J. Plant Physiol., 25: 665-671.
CrossRef - Cramer, G.R. and R.S. Nowak, 1992. Supplemental manganese improves the relative growth, net assimilation and photosynthetic rates of salt-stressed barley. Physiol. Plant., 84: 600-605.
Direct Link - Cramer, G.R., E. Epstein and A. Lauchli, 1988. Kinetics of root elongation of maize in response to short-term exposure to NaCl and elevated calcium concentration. J. Exp. Bot., 39: 1513-1522.
CrossRefDirect Link - Cuartero, J., A.R. Yeo and T.J. Flowers, 1992. Selection of donors for salt-tolerance in tomato using physiological traits. New Phytologist, 121: 63-69.
CrossRef - Daren, C.W., L.E. Datnoff, G.H. Snyder and F.G. Martin, 1994. Silicon concentration, disease response and yield components of rice genotypes grown on flooded organic histosols. Crop Sci., 34: 733-737.
Direct Link - Datnoff, L.E., R.N. Raid, G.H. Snyder and D.B. Jones, 1991. Effect of calcium silicate on blast and brown spot intensities and yields of rice. Plant Dis., 75: 729-732.
Direct Link - Dhindsa, R.S., P. Plumb-Dhindsa and T.A. Thorpe, 1981. Leaf senescence: Correlated with increased levels of membrane permeability and lipid peroxidation and decreased levels of superoxide dismutase and catalase. J. Exp. Bot., 32: 93-101.
CrossRefDirect Link - Dionisio-Sese, M.L. and S. Tobita, 2000. Effect of salinity on sodium content and photosynthetic responses of rice seedlings differing in salt tolerance. J. Plant Physiol., 157: 54-58.
Direct Link - Epstein, E. and A.J. Bloom, 2005. Mineral Nutrition Of Plants: Principles and Perspectives. 2nd Edn., Sinauer Associates, Sunderland, Massachusetts, ISBN:13-9780878931729, Pages: 400.
Direct Link - Epstein, E., 1999. Silicon. Annu. Rev. Plant Physiol. Plant Mol. Biol., 50: 641-664.
CrossRefPubMedDirect Link - Exley, C., 1998. Silicon in life : A bioinorganic solution to bioorganic essentiality. J. Inorganic Biochem., 69: 139-144.
CrossRef - Feigin, A., E. Pressman, P. Imas and O. Miltau, 1991. Combined effects of KNO3 and salinity on yield and chemical composition of lettuce and Chinese cabbage. Irrigation Sci., 12: 223-230.
CrossRefDirect Link - Feigin, A., I. Rylski, A. Meriri and J. Shalbevet, 1987. Response of melon and tomato plants to chloride-nitrate ratio in saline nutrient solution. J. Plant Nutr., 10: 1787-1794.
Direct Link - Foyer, C.H., K. Lelandais and K.J. Kunert, 1994. Photooxidative stress in plants. Physiol. Plant., 92: 696-717.
CrossRef - Fujii, H., T. Hayasaka, K. Yokoyama and H. Mayum, 1999. New silicon source for rice cultivation; 2. Rooting ability and early growth of wetland rice as affected by Silica gel application to the nursery bed. Proceedings of the Conference on Silicon in Agriculture, September 26-30, 1999, Fort Lauderdale, USA., pp: 32.
- Gong, H., X. Zhu, K. Chen, S. Wang and C. Zhang, 2005. Silicon alleviates oxidative damage of wheat plants in pots under drought. Plant Sci., 169: 313-321.
CrossRefDirect Link - Gong, H.J., D.P. Randall and T.J. Flowers, 2006. Silicon deposition in the root reduces sodium uptake in rice (Oryza sativa L.) seedlings by reducing bypass flow. Plant Cell Environ., 29: 1970-1979.
CrossRefDirect Link - Gong, H.J., K.M. Chen, G.C. Chen, S.M. Wang and C.L. Zhang, 2003. Effect of silicon on growth of wheat under drought. J. Plant Nutr., 26: 1055-1063.
CrossRefDirect Link - Grattan, S.R. and C.M. Grieve, 1998. Salinity-mineral nutrient relations in horticultural crops. Scientia Horticulturae, 78: 127-157.
CrossRefDirect Link - Greenway, H. and R. Munns, 1980. Mechanisms of salt tolerance in nonhalophytes. Annu. Rev. Plant Physiol., 31: 149-190.
CrossRefDirect Link - Shalata, A. and M. Tal, 1998. The effect of salt stress on lipid peroxidation and antioxidants in the leaf of the cultivated tomato and its wild salt-tolerant relative Lycopersicon pennellii. Physiologia Plantarum, 104: 169-174.
CrossRefDirect Link - Gunes, A., A. Inal, E.G. Bagci and D.J. Pilbeam, 2007. Silicon-mediated changes of some physiological and enzymatic parameters symptomatic for oxidative stress in spinach and tomato grown in sodic-B toxic soil. Plant Soil, 290: 103-114.
CrossRef - Hasegawa, P.M., R.A. Bressan, J.K. Zhu and H.J. Bohnert, 2000. Plant cellular and molecular responses to high salinity. Annu. Rev. Plant Physiol. Plant Mol. Biol., 51: 463-499.
CrossRefDirect Link - Hattori, T., S. Inanaga, H. Araki, P. An, S. Morita, M. Luxova and A. Lux, 2005. Application of silicon enhanced drought tolerance in Sorghum bicolor. Physiol. Planta., 123: 459-466.
CrossRefDirect Link - Hernandez, J.A. and M.S. Almansa, 2002. Short-term effects of salt stress on antioxidant systems and leaf water relations of pea leaves. Physiol. Plant., 115: 251-257.
CrossRefDirect Link - Hilal, M., A.M. Zenoff, G. Ponessa, H. Moreno and E.M. Massa, 1998. Saline stress alters the temporal patterns of xylem differentiation and alternative oxidase expression in developing soybean roots. Plant Physiol., 117: 695-701.
CrossRefDirect Link - Hu, Y. and U. Schmidhalter, 1997. Interactive effects of salinity and macronutrient level on wheat. II. Composition. J. Plant Nutr., 20: 1169-1182.
CrossRef - Hu, Y. and U. Schmidhalter, 2005. Drought and salinity: A comparison of their effects on mineral nutrition of plants. J. Plant Nutr. Soil Sci., 168: 541-549.
CrossRefDirect Link - Hodson, M.J. and D.E. Evans, 1995. Aluminium/silicon interactions in higher plants. J. Exp. Bot., 46: 161-171.
CrossRef - Jaleel, C.A., R. Gopi, G. Manivannan and R. Panneerselvam, 2007. Responses of antioxidant defense system of Catharanthus roseus (L.) G. Don. To paclobutrazol treatment under salinity. Acta Physiol. Plant., 29: 205-209.
CrossRef - Korndorfer, G.K., L.E. Datnoff and G.F. Correa, 1999. Influence of silicon on grain discoloration and upland rice growth in four Savanna soils of Brazil. J. Plant Nutr., 22: 93-102.
CrossRef - Lea-Cox, J.D. and J.P. Syvertsen, 1993. Salinity reduces water use and nitrate-N-use efficiency of citrus. Ann. Bot., 72: 47-54.
CrossRef - Lee, D.H., Y.S. Kim and C.B. Lee, 2001. The inductive responses of the antioxidant enzymes by salt stress in the rice (Oryza sativa L.). J. Plant Physiol., 158: 737-745.
CrossRef - Lee, K.S., S.B. Ahn, G.S. Rhee, B.Y. Yeon and J.K. Park, 1985. Studies of silica application to nursery beds on rice seedling growth. Res. Rep. Rural Dev. Admin., 27: 23-27.
Direct Link - Liang, Y., 1999. Effect of silicon on enzyme activity and sodium, potassium and calcium concentration in barely under salt stress. Plant Soil, 209: 217-224.
CrossRef - Liang, Y.C., T.S. Ma, F.J. Li and Y.J. Feng, 1994. Silicon availability and response of rice and wheat to silicon in calcareous soils. Commun. Soil Sci. Plant Annal., 25: 2285-2297.
CrossRef - Liang, Y., W. Zhang, Q. Chen and R. Ding, 2005. Effects of silicon on H+-ATPase and H+-PPase activity, fatty acid composition and fluidity of tonoplast vesicles from roots of salt-stressed barley (Hordeum vulgare L.). J. Environ. Exp. Bot., 53: 29-37.
CrossRef - Lin, C.C. and C.H. Kao, 2000. Effect of NaCl stress on H2O2 metabolism in rice leaves. Plant Growth Regul., 30: 151-155.
Direct Link - Lopez, C.M.L., H. Takahashi and S. Yamazaki, 2002. Plant-water relations of kidney bean plants treated with NaCl and foliarly applied glycinebetaine. J. Agron. Crop Sci., 188: 73-80.
CrossRef - Lopez, M.V. and S.M.E. Satti, 1996. Calcium and potassium-enhanced growth and yield of tomato under sodium chloride stress. Plant Sci., 114: 19-27.
CrossRefDirect Link - Lutts, S., J.M. Kinet and J. Bouharmont, 1996. NaCl-induced senescence in leaves of rice (Oryza sativa L.) cultivars differing in salinity resistance. Ann. Bot. 78: 389-398.
CrossRefDirect Link - Lynch, J. and A. Lauchli, 1984. Potassium transport in salt-stressed barley roots. Planta, 161: 295-301.
CrossRefDirect Link - Ma, J.F., 2004. Role of silicon in enhancing the resistance of plants to biotic and abiotic stresses. Soil Sci. Plant Nutr., 50: 11-18.
CrossRefDirect Link - Marcelis, L.F.M. and J. Van Hooijdonk, 1999. Effect of salinity on growth, water use and nutrient use in radish (Raphanus sativus L.). Plant Soil, 215: 57-64.
CrossRef - Marschner, H., H. Oberle, I. Cakmak and V. Romheld, 1990. Growth enhancement by silicon in cucumber (Cucumis sativus) plants depends on imbalance in phosphorus and zinc supply. Plant Soil, 124: 211-219.
CrossRef - Matichenkov, V.V. and D.V. Calvert, 2002. Silicon as a beneficial element for sugarcane. J. Am. Soc. Sugarcane Technol., 22: 21-30.
Direct Link - Matoh, T., P. Kairusmee and E. Takahashi, 1986. Salt-induced damage to rice plants and alleviation effect of silicate. Soil Sci. Plant Nutr., 32: 295-304.
CrossRef - Meinzer, F.C., Z. Plaut and N.Z. Saliendra, 1994. Carbon isotope discrimination, gas exchange and growth of sugarcane cultivars under salinity. Plant Physiol., 104: 521-526.
PubMedDirect Link - Menezes-Benavente, L., S.P. Kernodle, M. Margis-Pinheiro and J.G. Scandalios, 2004. Salt-induced antioxidant metabolism defenses in maize (Zea mays L.) seedlings. Redox Rep., 9: 29-36.
PubMed - Mitani, N. and J.F. Ma, 2005. Uptake system of silicon in different plant species. J. Exp. Biol., 56: 1255-1261.
CrossRef - Mitsui, S. and H. Takatoh, 1963. Nutritional study of silicon in graminaceous crops (part 1). Soil Sci. Plant Nutr., 9: 7-11.
CrossRef - Mittler, R., 2002. Oxidative stress, antioxidants and stress tolerance. Trends Plant Sci., 7: 405-410.
CrossRefPubMedDirect Link - Moussa, H.R., 2006. Influence of exogenous application of silicon on physiological response of salt-stressed maize (Zea mays L.). Int. J. Agric. Biol., 8: 293-297.
Direct Link - Muir, S.C., B. Khoo, G.F. McCabe, C. Offord, J. Brien and B. Summerell, 1999. Some effects of silicon in potting mixes on growth and protection of plants against fungal diseases. In: Silicon in Agriculture, Datnoff, L.E., G.H. Snyder and G.H. Korndorfer (Eds.), Fort Lauderdale, Florida, USA., pp: 18.
- Munns, R., 1993. Physiological processes limiting plant growth in saline soils: Some dogmas and hypotheses. Plant Cell Environ., 16: 15-24.
CrossRefDirect Link - Munns, R., 2002. Comparative physiology of salt and water stress. Plant Cell Environ., 25: 239-250.
CrossRefDirect Link - Munns, R., 2005. Genes and salt tolerance: Bringing them together. New Phytol., 167: 645-663.
CrossRefPubMedDirect Link - Munns, R., R.A. James and A. Lauchli, 2006. Approaches to increasing the salt tolerance of wheat and other cereals. J. Exp. Bot., 57: 1025-1043.
CrossRefPubMedDirect Link - Murillo-Amador, B., S. Yamada, T. Yamaguchi, E. Rueda-Puente and N. Avila-Serrano et al., 2007. Influence of calcium silicate on growth, physiological parameters and mineral nutrition in two legume species under salt stress. J. Agron. Crop Sci., 193: 413-421.
CrossRefDirect Link - Noctor, G., S. Veljovic-Jovanovic and C.H. Foyer, 2000. Peroxide processing in photosynthesis: Antioxidant coupling and redox signalling. Phil. Trans. R. Soc., 355: 1465-1475.
Direct Link - Osuna-Canizalez, F.J., S.K. De Datta and J.M. Bonman, 1991. Nitrogen form and silicon nutrition effects on resistance to blast disease of rice. Plant Soil, 135: 223-231.
CrossRef - Pessarakli, M. and T.C. Tucker, 1988. Dry matter yield and nitrogen-15 uptake by tomatoes under sodium chloride stress. Soil Sci. Soc. Am. J., 52: 698-700.
Direct Link - Plaut, Z., F.C. Meinzer and E. Federman, 2000. Leaf development, transpiration and ion uptake and distribution in sugarcane cultivars grown under salinity. Plant Soil, 218: 59-69.
CrossRefDirect Link - Qadir, M. and S. Schubert, 2002. Degradation processes and nutrient constraints in sodic soils. Land Degrad. Dev., 13: 275-294.
CrossRef - Raven, J.A., 2003. Cycling silicon-the role of accumulation in plants. New Phytol., 158: 419-430.
CrossRef - Raza, S.H., H.R. Athar and M. Ashraf, 2006. Influence of exogenously applied glycinebetaine on the photosynthetic capacity of two differently adapted wheat cultivars under salt stress. Pak. J. Bot., 38: 341-351.
Direct Link - Richmond, K.E. and M. Sussman, 2003. Got silicon? The non-essential beneficial plant nutrient. Curr. Opin. Plant Biol., 6: 268-272.
CrossRefDirect Link - Romero-Aranda, M.R., O. Jurado and J. Cuartero, 2006. Silicon alleviates the deleterious salt effect on tomato plant growth by improving plant water status. J. Plant Physiol., 163: 847-855.
CrossRefPubMedDirect Link - Romero-Aranda, R., T. Soria and S. Cuartero, 2001. Tomato plant-water uptake and plant-water relationships under saline growth conditions. Plant Sci., 160: 265-272.
CrossRefDirect Link - Rueda-Puente, E.O., J.L. Garcia-Hernandez, P. Preciado-Rangel, B. Murillo-Amador and M.A. Tarazon-Herrera et al., 2007. Germination of Salicornia bigelovii ecotypes under stressing conditions of temperature and salinity and ameliorative effects of plant growth-promoting bacteria. J. Agron. Crop Sci., 193: 167-176.
CrossRef - Sairam, R.K. and A. Tyagi, 2004. Physiology and molecular biology of salinity stress tolerance in plants. Curr. Sci., 86: 407-421.
Direct Link - Saqib, M., J. Akhtar and R.H. Qureshi, 2004. Pot study on wheat growth in saline and waterlogged compacted soil: II. Root growth and leaf ionic relations. Soil Tillage Res., 77: 179-187.
CrossRefDirect Link - Shalata, A. and M. Tal, 1998. The effect of salt stress on lipid peroxidation and antioxidants in the leaf of the cultivated tomato and its wild salt-tolerant relative Lycopersicon pennellii. Physiologia Plantarum, 104: 169-174.
CrossRefDirect Link - Suhayda, C.G., J.L. Giannini, D.P. Briskin and M.C. Shannon, 1990. Electrostatic changes in Lycopersicon esculentum root plasma membrane resulting from salt stress. Plant Physiol., 93: 471-471.
PubMedDirect Link - Sultana, N., T. Ikeda and R. Itoh, 1999. Effect of NaCl salinity on photosynthesis and dry matter accumulation in developing rice grains. Environ. Exp. Bot., 42: 211-220.
CrossRef - Tabaei-Aghdaei, S.R., P. Harrison and R.S. Pearee, 2000. Expression of dehydration-stress-related genes in the crowns of wheatgrass species (Lophopyrum elongatum (Host) A. Love and Agropyron desertorum (Fisch. ex Link.) Schult.) having contrasting acclimation to salt, cold and drought. J. Plant Cell Environ., 23: 561-571.
CrossRef - Tahir, M.A., Rahmatullah, T. Aziz, M. Ashraf, S. Kanwal and M.A. Maqsood, 2006. Beneficial effects of silicon in wheat under salinity stress-pot culture. Pak. J. Bot., 38: 1715-1722.
Direct Link - Takahashi, E., J.F. Ma and Y. Miyake, 1990. The possibility of silicon as an essential element for higher plants. Comments Agric. Food Chem., 2: 99-122.
Direct Link - Vitoria, A.P., P.J. Lea and R.A. Azevedo, 2001. Antioxidant enzymes responses to cadmium in radish tissues. Phytochemistry, 57: 701-710.
CrossRefDirect Link - Vranova, E., D. Inze and F. Van Breusegem, 2002. Signal transduction during oxidative stress. J. Exp. Bot., 53: 1227-1236.
CrossRefDirect Link - Wang, S.Y. and G.J. Galletta, 1998. Foliar application of potassium silicate induces metabolic changes in strawberry plants. J. Plant Nutr., 21: 157-167.
CrossRefDirect Link - Yeo, A.R., S.A. Flowers, G. Rao, K. Welfare, N. Senanayake and T.J. Flowers, 1999. Silicon reduces sodium uptake in rice (Oryza sativa L.) in saline conditions and this is accounted for by a reduction in the transpirational bypass flow. Plant Cell Environ., 22: 559-565.
CrossRefDirect Link - Zeng, L. and M.C. Shannon, 2000. Salinity effects on seedling growth and yield components of rice. Crop Sci., 40: 996-1003.
CrossRefDirect Link - Zhu, Z., G. Wei, J. Li, Q. Qian and J. Yu, 2004. Silicon alleviates salt stress and increases antioxidant enzymes activity in leaves of salt-stressed cucumber (Cucumis sativus L.). Plant Sci., 167: 527-533.
Direct Link - Zhu, J.K., 2003. Regulation of ion homeostasis under salt stress. Curr. Opin. Plant Biol., 6: 441-445.
CrossRefDirect Link - Zuccarini, P., 2008. Effects of silicon on photosynthesis, water relations and nutrient uptake of Phaseolus vulgaris under NaCl stress. Biol. Plant., 52: 157-160.
CrossRefDirect Link