Identification of Chinese cabbage genotypes with low cadmium accumulation for food safety.
The pot-culture experiment and field studies were conducted to screen out and identify cadmium (Cd) excluders from 40 Chinese cabbage genotypes for food safety. The results of the pot-culture experiment indicated that the shoot Cd concentrations under three treatments (1.0, 2.5 and 5.0 mg Cd kg(-1) Soil) varied significantly (p<0.05), with average values of 0.70, 3.07 and 5.83 mg kg(-1), respectively. The Cd concentrations in 12 cabbage genotypes were lower than 0.50 mg kg(-1). The enrichment factors (EFs) and translocation factors (TFs) in 8 cabbage genotypes were lower than 1.0. The field studies further identified Lvxing 70 as a Cd-excluder genotype (CEG), which is suitable to be planted in low Cd-contaminated soils (Cd concentration should be lower than 1.25 mg kg(-1)) for food safety.
Liu
Weitao
W
Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, PR China.
Zhou
Qixing
Q
Sun
Yuebing
Y
Liu
Rui
R
D018533:Biomass; D001937:Brassica / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism*; D002104:Cadmium / Q000032:analysis / Q000378:metabolism*; D002681:China; D003257:Consumer Product Safety; D018556:Crops, Agricultural; D004463:Ecology / Q000379:methods; D005506:Food Contamination; D005838:Genotype; D018520:Plant Shoots / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*
D012989:Soil Pollutants; D002104:Cadmium