Abstract
SummaryThe effects of seven Cd levels (0, 10, 20, 40, 80,160 and 320 μg g−1) on the growth and chemical composition of tomato and sweet corn grown in two calcareous soil types were studied in a glasshouse experiment. Cadmium had no significant effect on dry weight of tomato roots in either soil, whereas the highest Cd level markedly decreased the root dry weight of corn. Shoot dry weights generally decreased with increasing Cd levels in either soil. However, the reduction in growth was more pronounced for corn than for tomato and was more marked in one soil. Root and shoot tissues increased in Cd concentration with increasing levels of Cd, Cd accumulation being substantially higher in roots than in shoots. Furthermore, the plants and soils tested exhibited a highly variable capacity to accumulate Cd as the Cd levels increased. Tomato absorbed more Cd than corn.
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Claims 8
Claim · model-written summary
Cadmium had no significant effect on tomato root dry weight in either soil.
- Taxon
- tomato
Solanum lycopersicume1 - Organ / stage
- rootse1
- Treatment
- Cadmiume1
- Outcome
- dry weight of tomato rootse1
- Direction
- no significant effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Cadmium had no significant effect on dry weight of tomato roots in either soil”
Claim · model-written summary
The highest Cd level markedly decreased root dry weight of corn.
- Taxon
- corn
Zea mays subsp. mayse2 - Organ / stage
- roote2
- Treatment
- highest Cd levele2
- Outcome
- root dry weighte2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the highest Cd level markedly decreased the root dry weight of corn”
Claim · model-written summary
Shoot dry weights generally decreased with increasing Cd levels in either soil.
- Taxon
- tomato and sweet corne0
- Organ / stage
- Shoote3
- Treatment
- increasing Cd levelse3
- Outcome
- Shoot dry weightse3
- Direction
- decreasede3
- Setting
- glasshouse experimente0
Not reportedComparator
Verbatim
e0“tomato and sweet corn grown in two calcareous soil types were studied in a glasshouse experiment”
e3“Shoot dry weights generally decreased with increasing Cd levels in either soil”
Claim · model-written summary
Growth reduction by Cd was more pronounced in corn than in tomato.
- Taxon
- cornZea mays subsp. mayse4
- Treatment
- Cd levelse7
- Outcome
- reduction in growthe4
- Direction
- more pronouncede4
- Comparator
- tomatoe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“the reduction in growth was more pronounced for corn than for tomato”
e7“The effects of seven Cd levels”
Claim · model-written summary
Root and shoot Cd concentration increased with increasing Cd levels.
- Taxon
- tomato and sweet corne0
- Organ / stage
- Root and shoot tissuese5
- Treatment
- increasing levels of Cde5
- Outcome
- Cd concentratione5
- Direction
- increasede5
- Setting
- glasshouse experimente0
Not reportedComparator
Verbatim
e0“tomato and sweet corn grown in two calcareous soil types were studied in a glasshouse experiment”
e5“Root and shoot tissues increased in Cd concentration with increasing levels of Cd”
Claim · model-written summary
Cd accumulation was substantially higher in roots than in shoots.
Verbatim
e0“tomato and sweet corn grown in two calcareous soil types were studied in a glasshouse experiment”
e6“Cd accumulation being substantially higher in roots than in shoots”
Claim · model-written summary
Plants and soils differed highly in their capacity to accumulate Cd as Cd levels increased.
- Taxon
- plantsViridiplantaee7
- Outcome
- capacity to accumulate Cde7
- Qualifier
- highly variablee7
Verbatim
e7“the plants and soils tested exhibited a highly variable capacity to accumulate Cd as the Cd levels increased”
Claim · model-written summary
Tomato absorbed more Cd than corn.
- Taxon
- TomatoSolanum lycopersicume0
- Outcome
- absorbed more Cde0
- Direction
- moree0
- Comparator
- corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato absorbed more Cd than corn”
The same questions in other papers
cadmium atom · growth · Solanum lycopersicum (tomato)Results differ
45 papers in the same direction as this paper · 5 in the opposite direction
- negative
- positive
- positive
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See all 51 papers →cadmium atom · growth · Zea mays (maize)Results differ
84 papers in the same direction as this paper · 11 in the opposite direction
- positive
- negative
- positive
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See all 96 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.