|Table of Contents|

Enrichment of Heavy Metals in Soil of Rape Organs in  Different Growth Stage in Guizhou Province

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年05
Page:
111-117
Research Field:
Publishing date:

Info

Title:
Enrichment of Heavy Metals in Soil of Rape Organs in  Different Growth Stage in Guizhou Province
Author(s):
FANG Hui1; LIU Xiaolan2; YAN Qiuxiao2; HE Tengbing1; 3; WANG Daoping2; LIN Changhu1; 2
(1.College of Agriculture，Guizhou University，Guiyang，Guizhou 550025；2.The Key Laboratory of Chemistry for Natural Proucts,Guizhou Province and Chinese Academy and Science，Guiyang，Guizhou 550002；3.New Rural Development Research Institute，Guizhou University,Guiyang，Guizhou 550025)
Keywords:
heavy metals; enrichment; growth stage; organs; rape
PACS:
-
DOI:
10.11937/bfyy.20173293
Abstract:
To explore the enrichment and transport of heavy metals in soil during growing periods of rape，and analyze the enrichment ability of each organ to heavy metals，the root zone soil of surface (0-20 cm) and rapeseed plant were taken as test materials in different growth stages (seedling，bolting，flowering and harvesting) to measure the contents of heavy metals (Cr，Cd，Pb，Cu and Zn) in soil and rape organs.The results showed that rape enriched heavy metals differently in each stage of growth，and overall，the enrichment ability to Zn was the strongest，followed by Cd，Cr was the weakest.The rape enrichment to Zn，Cd and Cu showed the tendency of weaken，strengthen and weaken，the powerful was most in florescence.The leaves，roots and stems were Zn and Cd-enriched organs.In addition to the stems，other organs have a strong enrichment capacity of Cu.Pb，in seedling and bolting stage，was mainly enriched in rape roots，then was transported to flowers and seeds during flowering and harvesting period.Cr was enriched in the stems and flowers when rape bloomed，but in other times Cr was mainly enriched in the roots.Compared with the pollutant limit standards of food，it was found that except Pb，the other heavy metals were not exceeded，but the safety of heavy metals of rapeseed still needed further studies.

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Last Update: 2018-03-20