番茄对镉吸收累积的品种差异  

Differences in cadmium absorption and accumulation of tomato( Lycopersicon esculentum) varieties on Cd-polluted soil

作　　者：谭小琪[1] 李取生[1,2] 何宝燕[1] 梅秀芹[1] 李慧[1] 

机构地区：[1]暨南大学环境工程系,广东广州510632 [2]水土环境毒害性污染物防治与生物修复广东省高校重点实验室,广东广州510632

出　　处：《暨南大学学报（自然科学与医学版）》2014年第3期215-220,共6页Journal of Jinan University(Natural Science & Medicine Edition)

基　　金：国家自然科学基金项目(40871154);中央高校基本科研基金项目(21612103)

摘　　要：以番茄为实验材料，研究了29个番茄品种在盆栽条件下对不同质量分数Cd污染的差异吸收和累积情况．结果表明：（1）29个番茄品种可食部位Cd质量分数存在显著品种差异（P＜0.01），1.2和2.0 mg·kg-1 Cd处理下，番茄果实的Cd质量分数范围分别为0.037～0.134和0.079～0.170 mg·kg-1，其中2.0 mg·kg-1 Cd条件下番茄果实Cd质量分数全部超标．（2）不同质量分数Cd处理对29种番茄品种果实、地上部和地下部分生物量没有显著影响．（3）根据可食部位Cd质量分数、Cd转运系数、番茄植株生物量指标评价表明台湾黄圣女、黄金一点红、台湾珍珠、新402、元明黄娇子、台湾红圣女等6个品种可作为番茄的Cd-PSCs．Potexperimentswereconductedtostudythedifferencesincadmium（Cd）absorptionand accumulation of 29 tomato varieties in the soils added with different concentration of Cd.Results show that：（1 ）Cd concentrations are significant different （P＆lt;0.01 ）in fruit among 29 tomato cultivars under two treatments （1.2,2.0 mg·kg-1 ）,which ranging from 0.037 to 0.1 34,0.079 to 0.1 70 mg·kg-1 , respectively.In the 2.0 mg·kg-1 treatment,there is no variety which Cd concentration of fruit below the standard,so Cd-PSC is not exist in this treatment.（2）Root,shoot and fruit biomass of 29 tomato cultivars do not vary significantly under different Cd treatments （P＆gt;0.05 ）,which indicate that tomato cultivars show tolerance to Cd toxicity to a certain extent4 （3 ）Considering furthermore the concentration of Cd in the edible parts,transference coefficient of heavy metals,biomass of the tomato plants,cultivars Taiwanhuangshengnv,Huangjinyidianhong,Taiwanzhenzhu,Xin402,Yuanminghuangjiaozi and Taiwan-hongshengnv are considered as the potential tomato Cd-PSCs.

关 键 词：番茄 镉 品种差异 安全品种 

分 类 号：X13[环境科学与工程—环境科学]