重金屬鎘在烤煙中的累積分配
Accumulation and Distribution of Cadmium in Flue-cured Tobacco
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摘要: 為控制或減少煙葉中的重金屬含量，提高卷煙產(chǎn)品的安全性,，采用盆栽和室內(nèi)分析測試相結(jié)合的方法,，研究重金屬鎘（Cd）在烤煙中的累積分布。研究結(jié)果表明,，Cd在烤煙根系和莖中的含量較低,，葉片中含量較高，吸收的Cd 80%以上分布在葉片中,；Cd在烤煙中的遷移性較強,，烤煙對Cd的耐受力較強。因此,，烤煙種植時應(yīng)選擇Cd含量較低的土壤,，防止重金屬在烤煙中累積，危害吸食者,。Abstract: In order to increase the safety of tobacco products, and to control or decrease cadmium content in tobacco leaves, the accumulation and distribution of cadmium in flue-cured tobacco were studied by using pot experiment and lab analysis. The results showed that, Cd content was lower both in root and stem of flue-cured tobacco, but it was high in leaves, more than 80% of Cd was found in leaves. Because Cd has high migrantion and flue-cured tobacco is insensitive to Cd, the flue-cured tobacco should be planted in soils with low Cd to prevent Cd accumulation in tobacco leaves and hurt smokers.
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