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首页> 外文期刊>International journal of green energy >Morphological Responses, Biomass Yield, and Bioenergy Potential of Sweet Sorghum Cultivated in Cadmium-Contaminated Soil for Biofuel
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Morphological Responses, Biomass Yield, and Bioenergy Potential of Sweet Sorghum Cultivated in Cadmium-Contaminated Soil for Biofuel

机译：Morphological Responses, Biomass Yield, and Bioenergy Potential of Sweet Sorghum Cultivated in Cadmium-Contaminated Soil for Biofuel

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This study was performed to assess morphological responses, biomass yield and bioenergy potential during the entire growth period (167 days) of sweet sorghum with different Cd stress, i.e. 0, 1, 5, 10, 30, 50, and 100 mg/kg in pot experiments. The results showed that the morphological characteristics of sweet sorghum, i.e. shoot length, leaf length and leaf numbers were not significantly changed with the Cd concentration ≤ 5 mg/kg in the soil. The aerial biomass of sweet sorghum treated by 10 mg/kg Cd was 82.71 of the control test, and was reduced to 70.67 when the Cd concentration in the soil was increased to 30 mg/kg. The root was the main location site of Cd in the sweet sorghum, thus the reutilization of the aerial biomass would not be seriously influenced. The predicted ethanol yields was 3.65, 3.05, 3.14, 2.69, 1.15, and 0.41 t/y/hm~2 for 1, 5, 10, 30, 50, and 100 mg/kg Cd concentration, respectively. Due to its high biomass production and Cd accumulation capacity, sweet sorghum is a good candidate for bio-energy production in Cd-contaminated (30 mg/kg) soil.

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