| The paper researched the arsenic effects on tobacco agronomic traits, the arsenic content of tobacco leaves, bioconcentration factors, dry weight of tobacco and arsenic content in different parts of tobacco during different periods by pot experiment. The results showed that low concentration of arsenic could promote tobacco growth, and high concentration of arsenic could cause inhibition of the tobacco growth.Arsenic bioconcentration factors of each treatment was the highest and arsenic in roots and stems was also the highest in fast growing stage,arsenic of tobacco leaves was highest in maturing stage, which indicated that the arsenic transferred from the roots and stems to the leaves. |
