Phytoremediation and Effects of Chromium and Silicon on Triticale Yield and Growth

چکیده مقاله

This study was conducted to assessment the phytoremediation of triticale in a completely randomized block design with a factorial experiment arrangement with three replicates in the greenhouse condition. The factors were: I) three levels of silicon (Si) element (a₀: zero and a₁: 300 mg/kg soil), II) chromium (Cr) at three levels (b₀: zero and b₁: 150 mg/kg soil and b2: 300 mg/kg soil). The characteristics such as soil analysis and roots, shoots and grains decomposition were separately assessed to determine the level of heavy metals using spectrophotometry atomic absorption. Comparing means for Si and Cr interactions showed that the maximum spikelet number per spike, kernel weight, 1000-grain weight, grain yield, and biological yield were observed in the control. The highest grain yield (268.66 kg) obtained in 300 mg Si and without any Cr and application of Cr decrease grain yield. Also, the highest biological yield (729.22 kg) produced in the control and biological yield decreased in Cr treatments. Results showed that the highest level of heavy metals in the grains (12.84) and shoots (13.21) observed in 300 mg Cr + 300 mg Si treatment. The maximum concentration of heavy metals in the roots (15.17) observed in 300 mg Cr + 150 mg Si treatment.

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