Title: Effect of ammonia in the sediment on the growth and physiological characteristics of submerged macrophytes
Abstract: The growth of submerged macrophytes is related not only to the concentration of nutritional salt, but also to the nutriment in the sediment, especially the ammonia content. It is necessary to study the effect of ammonia in the sediment on the growth of submerged macrophytes, which might provide scientific data for reestablishment and seed selection of submerged macrophytes. In order to investigate the relationship between ammonia in the sediment and the physiological and biochemical characteristics of macrophytes, Vallisneria natans L and Elodea nuttallii were planted in the sediments of seven different concentrations of ammonia. Fresh weight (FW), dry weight (DW), root activity, peroxides (POD) activity and catalase (CAT) activity were measured. The results showed that FW, DW, root activity, POD activity and CAT activity of Vallisneria natans L and Elodea nuttallii were improved when ammonia concentrations were less than 50 mg·kg-1 and 500 mg·kg-1, respectively .
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 3
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot