烟草中重金属的分布·影响及控制措施

介绍了重金属在烟草中的分布,包括烟草中重金属的吸收途径,重金属在不同器官、生育期和叶位间的分布,重金属在烟株内的形态分布、品种和地域因素对烟草累积重金属的影响。分析了重金属对烟草的影响,包括对种子和叶肉细胞结构的影响、对烟草酶系统的影响、对烟草光合作用和碳氮代谢的影响、对生长发育及产质量的影响。最后从修复污染土壤、农艺措施、生物工程技术几方面提出了控制措施。

Distribution,Influence and Control Measures of Heavy Metals in Tobacco

The distribution of heavy metals in tobacco was introduced, including heavy metal absorption pathways in tobacco, distribution of heavy metals in different organs,growth stages and leaf positions,the distribution of heavy metals in tobacco plants,the effects of varieties and geographical factors on the accumulation of heavy metals in tobacco.The effects of heavy metals on tobacco were analyzed, including the effects on seed and mesophyll cell structure, the effects on tobacco enzyme system, the effects of photosynthesis and carbon and nitrogen me-tabolism on tobacco growth and development,yield and quality.Finally,the control measures were put forward from aspects of the remediation of contaminated soil, agronomic measures, and biological engineering technology.