The Journal "Agriculture and Forestry"
Časopis "Poljoprivreda i šumarstvo"
- Since 1955 -
Year 2010, Volume 56 Issue 1-4
| Year : | 2010 |
| Volume : | 56 |
| Issue : | 1-4 |
| Authors : | Mohsen JANMOHAMMADI |
| Title : | ALLEVIATION THE ADVERSE EFFECT OF CADMIUM ON SEEDLING GROWTH OF GREATER BURDOCK (ARACTIUM LAPPAL L.) THROUGH PRE-SOWING TREATMENTS |
| Abstract : | Cadmium (Cd) is one of the most important heavy and highly toxic metal elements which is very stable in environment. Its level increasing in soil brings a wide range of adverse effects on plants, especially during seed germination and seedling growth. Arctium lappa belongs to the Asteraceae and is an important medicinal plant of temperate regions. In this investigation, impact of pre-sowing treatments (control, osmopriming with PEG and priming with salicylic acid) on germination and seedling growth of burdock were evaluated under four concentrations of Cadmium (0, 10, 25 and 50 mg/L). The results showed that germination and seedling growth of burdock were inhibited significantly by the cadmium concentrations upper than 10 mg/L, especially in non-primed-control and osmoprimed seeds. Priming with salicylic acid is improved significantly some traits such as germination percentage, germination index and seedling early growth, as compared with control and osmopriming. Afterward burdock seedlings which experienced pre-sowing treatments were grown under hydroponic culture in presence of Cd (0-50 mg). Analysis of leaf tissue of 30-day-seedling revealed that catalase (CAT) and guaiacol peroxidase (GPX) activity enhanced by increasing of Cd concentration. However enzymatic scavenging was not sufficient for reactive oxygen detoxification, so that cadmium application increased hydrogen peroxide production and significantly was induced loss of cell membrane integrity. Decrease in total chlorophyll and soluble protein content was observed under Cd treatments. However, seedlings obtained from salicylic acid-primed seeds showed a better performance compared to other pre-sowing treatments under both control and Cd stress. |
| For citation : | Mohsen JANMOHAMMADI (2012): ALLEVIATION THE ADVERSE EFFECT OF CADMIUM ON SEEDLING GROWTH OF GREATER BURDOCK (ARACTIUM LAPPAL L.) THROUGH PRE-SOWING TREATMENTS. Agriculture & Forestry, Vol. 56. (10) (1-4): 55-70, 2012, Podgorica, Crna Gora (Montenegro) |
| Keywords : | Antioxidant, heavy metal, medicinal plant, Priming, salicylic acid |
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