Phytotoxicity level and accumulation ability of pot marigold ( L.) to zinc.

The study aims to reveal the effects of different Zn levels on pot marigold. We determined some germination and young seedling properties in the first experiment, and morphological, stomatal, and physiological parameters besides uptake profiles of both Zn and other plant nutrients in the second one. We supplied the water requirement of the seeds with Zn solutions (0, 250, 500, 750, and 1,000 mg l) in the first experiment, and We added the same zinc doses as mg kg to the soil of the pots where the plants would grow in the second one.