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Effect of heavy metal chromium on seed germination and growth of Chinese cabbage

Jiang Guangyue Cui Dejie

Abstract: The effects of different concentrations of Cr6+ on the germination and growth of Chinese cabbage seeds were studied through the seed germination test in Petri dishes. The results showed that Cr promoted germination at low concentration (4 ~ 5 mg L-1), and had obvious inhibition after reaching a certain concentration (8 mg L-1). Chromium has the greatest influence on the simplified vigor index and hypocotyl length of seed germination, which can be used as the toxicity index of chromium.

Author: Department of Resources and Environment, Laiyang Agricultural College

Key words:

The hypocotyl vitality index decreased under chromium toxicity.

Fund: Supported by Shandong Natural Science Foundation (Y2003E0 1)

Classification number: X 173

Text snapshot:

Chromium is one of the heavy metal pollution elements widely existing in the environment, and the toxicity of Cr6+ is 100 times that of Cr3+. It is a feasible method to detect the toxicity of terrestrial plants by using seed germination [1]. Comparatively speaking, the toxicity test of plant seed germination has two advantages compared with other toxicity test methods: first, the method is simple and the duration is short; Second, this method is very sensitive to the toxicity of poisons. Some in the world