Abstract
The uptake of Cd by lettuce cultivars was studied in soil and water culture experiments (16 and 8 cultivars, respectively). In the soil experiment, sandy soils from both a Cd-contaminated and a non-contaminated area of the Netherlands were used; the water culture experiment included 3 Cd levels (0, 0.03 and 0.1 mg/litre). Fresh and dry yields of shoots and roots were hardly affected by Cd in either of the experiments. The lettuce cultivars showed a close similarity in shoot Cd concentration, ranging from 8.23 to 10.72 micro g/g DW for the Cd-contaminated soil and from 3.96 to 8.83 micro g/g DW in the water culture at the highest Cd level tested. These results contradict published data on a large genotypic variation in Cd concentration in lettuce [see John, M. K. et al, Environmental Pollution (1976) 10, 163-173]. Based on the narrow range in shoot (and root) Cd concentration between cultivars, it is concluded that it is unwarranted to use lettuce as a pilot plant in comparative physiological investigations on Cd uptake and distribution. (Abstract retrieved from CAB Abstracts by CABI’s permission)
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Claims 4
Claim · model-written summary
Cadmium hardly affected fresh and dry yields of shoots and roots.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- Cde0
- Outcome
- Fresh and dry yields of shoots and rootse0
- Direction
- hardly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh and dry yields of shoots and roots were hardly affected by Cd in either of the experiments”
t0“lettuce”
Claim · model-written summary
Lettuce cultivars had similar shoot Cd concentration in contaminated soil, ranging from 8.23 to 10.72 micro g/g DW.
- Taxon
- lettuceLactuca sativae0
- Outcome
- shoot Cd concentratione0
- Direction
- close similaritye0
- Value
- 8.23 to 10.72 micro g/g DWe0
- Setting
- Cd-contaminated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lettuce cultivars showed a close similarity in shoot Cd concentration, ranging from 8.23 to 10.72 micro g/g DW for the Cd-contaminated soil”
Claim · model-written summary
Lettuce cultivars had shoot Cd concentrations of 3.96 to 8.83 micro g/g DW at the highest water culture Cd level.
- Taxon
- lettuceLactuca sativae0
- Outcome
- shoot Cd concentratione0
- Value
- 3.96 to 8.83 micro g/g DWe0
- Qualifier
- highest Cd level testede0
- Setting
- water culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lettuce cultivars showed a close similarity in shoot Cd concentration, ranging from 8.23 to 10.72 micro g/g DW for the Cd-contaminated soil and from 3.96 to 8.83 micro g/g DW in the water culture at the highest Cd level tested”
Claim · model-written summary
The authors conclude lettuce should not be used as a pilot plant for comparative Cd uptake investigations.
- Taxon
- lettuceLactuca sativae0
- Outcome
- unwarranted to use lettuce as a pilot plant in comparative physiological investigations on Cd uptake and distributione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is unwarranted to use lettuce as a pilot plant in comparative physiological investigations on Cd uptake and distribution”
The same questions in other papers
cadmium atom · yield · Lactuca sativa (garden lettuce)Results differ
6 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
5 papers more in this group
See all 9 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.