|Table of Contents|

Sensitivity of Brassica chinensis L. at Different Growth Stages to Cadmium Toxicity

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年24
Page:
14-20
Research Field:
Publishing date:

Info

Title:
Sensitivity of Brassica chinensis L. at Different Growth Stages to Cadmium Toxicity
Author(s):
WANG Xiyue1; REN Yanfang1; 2; WANG Wei1; ZHANG Luyun1; CUI Zhiwen1; HE Junyu1
(1.School of Environmental and Safety Engineering，Changzhou University，Changzhou，Jiangsu 213164；2.College of Agriculture，Guizhou University，Guiyang，Guizhou 550025)
Keywords:
Brassica chinensis L.; cadmium stress; germination stage; seedling stage; sensitivity
PACS:
-
DOI:
10.11937/bfyy.20191989
Abstract:
Using Brassica chinensis L.cv Houyeyangsheng as the test material，the sensitive difference of cadmium toxicity between seed germination stage and seedling stage was studied by hydroponics.The results showed that 50-400 μmol?L-1 Cd stress had no significant inhibitory effect on seed germination rate，germination potential and germination index，but the radicle length and vigor index of Brassica chinensis L. decreased significantly under different concentrations of Cd stress.The total leaf area，dry weight and fresh weight of shoots and roots of Brassica chinensis L. seedlings were significantly inhibited under 5-160 μmol?L-1 Cd treatment.The results showed that Brassica chinensis L. at seedling stage was more sensitive to Cd toxicity than that at germination stage.Root dry weight of Brassica chinensis L. seedlings was more sensitive to Cd stress than other indicators，EC10,EC20 and EC50 values were 0.03，0.26，13.03 μmol?L-1，which could be used as a screening index for sensitivity of Brassica chinensis L. to Cd toxicity.

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Last Update: 2019-12-30