Cadmium accumulation in Allium schoenoprasum L. grown in an aqueous medium Academic Article uri icon

abstract

  • The ability of Allium schoenoprasum L.(chives) to accumulate and tolerate cadmium in aqueous Hoagland medium at 50 μM and 250 μM was tested under continuous growth or several successive harvests of shoots. After 28 days of continuous growth, chives accumulated the metal up to 0.2% and 0.5% of its dry weight, when grown in 50 μM and 250 μM, respectively. In experiments that the leaves were successively harvested every 16 days, there were no obvious stress symptoms after six harvests during a period of 96 days at 50 μM Cd. At 250 μM, after 64 days and four harvests, inhibition of growth occurred. In each treatment, a total of 1.2 g kg− 1 DW and 2.4 g kg− 1 DW was accumulated in the leaves, respectively. Total SH compounds concentration in leaf was found significantly higher by 3 and 7.4 times in plants treated with Cd at 50 μM and 250 μM in comparison to the control …

publication date

  • December 1, 2004