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SILICON IMPROVED GROWTH RATE BY ALTERING BIOCHEMICAL TRAITS OF WHEAT UNDER SALINE CONDITIONS
Abstract
Silicon (Si) is a constructive element for plant growth. Its application plays a multiple role to increase plant growth through influencing physiological and metabolic processes in higher plants under both biotic and abiotic stresses. A hydroponic study was conducted to investigate the interactive effect of salinity and silicon (Si) on plant biochemical attributes at two different growth stages by growing two wheat varieties (Faisalabad-2008 as salt tolerant & Millat-2011 as salt sensitive). The two salinity (100 and 200 mM NaCl) and two silicon (1 mM and 2 mM H2SiO3) levels were applied using ½ strength Hoagland’s nutrient solution in a wire house for 30 days. It was found that Si significantly increased the salt tolerance of both wheat varieties by improving the plant biochemical traits. Faisalabad-2008 performed better than Millat-2011at different growth stages, i.e., (tillering and stem elongation).
