Author(s):

Khushbu Sharma and Prasann Kumar

Abstract: Heavy metals and metalloids are important naturally occurring components found in all soils. The bioavailability, toxicity and mobility of heavy metals in soil are strongly influenced by both natural and anthropogenic activities such as chemical complexions with clay minerals and oxides, desorption/ sorption, redox reactions, deliberation of inorganic and organic ligands etc. Their presence in soil rhizosphere leads to their entry in plant further they easily accomplish place in the food chain. Their occurrence in plant cause toxicity which is responsible for disturbance physiological activities of the ell and directly affects the quality and quantity of yield. Along with environment heavy metal toxicity also cause harmful effect on human health. Several remediation strategies were adopted to eliminate or minimize the toxicity of heavy metal in plant and soil. This research study was conducted to check the effect the ameliorating effect of trichoderma, rhizobium and mycorrhiza in mediated mercury stress under Pearl millet during Kharif season 2019 in Lovely Professional University under Department of Agronomy, School of Agriculture. A pot experiment was conducted to check the behaviour of all three biofertilizers on plant both on mthe molecular basis and morphological analysis. The average plant height was significantly increased with 45%, 16%, 18% and reduced by11.25% in treatment (T10) where all three biofertilizers are applied combined under mercury (100ppm) soil. The average leaf number was significantly decreased by 6.19%, 1.33%, 0%, 15.96% at all proposed dates of interval in treatment (T10). It is an evident in treatment (T1) mercury stress there was significant decrease in total soluble sugar content by 0%, 1.01%, 7.70%, 39.7% at 30,60,90 or 120DAS during comparison with control (T0).

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