Abstract
The effect of increasing cadmium concentration (10, 100 and 1000 μmol dm‐3) on the growth, leaf area, content of assimilation pigments, cadmium content and the regulatory ability of the tissue of maize plants was investigated. The results obtained document, already after 6 days, a significant decrease of dry weight, reduction of leaf area, chlorophyll a and b as well as carotenoids in plants grown in the nutrient solution containing 1000 μmol dm ‐3 of cadmium. A highly significant inhibition of growth, leaf area and assimilation pigments in plants growing in the nutrient solutions with 100 and 10 μmol dm‐3 of cadmium was registered after 17 days of cultivation. In plants growing in the nutrient solution containing 100 μmol dm‐3 of cadmium a demonstrable reduction of the content of assimilation pigments was registered after 11 days of culture. With increasing cadmium concentration in the nutrient solution as well as in the plant tissue after 6 and 17 days of culture both the range of the regulatory zone and the extent of optimum pH increased into the acid region. The pH values of the isoelectric point decreased with increasing cadmium content in the solution.
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Claims 7
Claim · model-written summary
Cadmium at 1000 μmol dm‐3 significantly decreased maize dry weight after 6 days.
- Organ / stage
- germinatingt0
- Treatment
- cadmiume1
- Outcome
- dry weighte1
- Direction
- decreasee1
- Qualifier
- after 6 dayse1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germinating maize plants”
e1“The results obtained document, already after 6 days, a significant decrease of dry weight, reduction of leaf area, chlorophyll a and b as well as carotenoids in plants grown in the nutrient solution containing 1000 μmol dm ‐3 of cadmium”
Claim · model-written summary
Cadmium at 1000 μmol dm‐3 reduced maize leaf area after 6 days.
- Organ / stage
- germinatingt0
- Treatment
- cadmiume1
- Outcome
- leaf areae1
- Direction
- reductione1
- Qualifier
- after 6 dayse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germinating maize plants”
e1“The results obtained document, already after 6 days, a significant decrease of dry weight, reduction of leaf area, chlorophyll a and b as well as carotenoids in plants grown in the nutrient solution containing 1000 μmol dm ‐3 of cadmium”
Claim · model-written summary
Cadmium at 1000 μmol dm‐3 reduced chlorophyll a and b and carotenoids after 6 days.
- Organ / stage
- germinatingt0
- Treatment
- cadmiume1
- Outcome
- chlorophyll a and b as well as carotenoidse1
- Direction
- reductione1
- Qualifier
- after 6 dayse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germinating maize plants”
e1“The results obtained document, already after 6 days, a significant decrease of dry weight, reduction of leaf area, chlorophyll a and b as well as carotenoids in plants grown in the nutrient solution containing 1000 μmol dm ‐3 of cadmium”
Claim · model-written summary
Cadmium at 100 and 10 μmol dm‐3 strongly inhibited growth, leaf area and pigments after 17 days.
- Organ / stage
- germinatingt0
- Treatment
- 100 and 10 μmol dm‐3 of cadmiume2
- Outcome
- growth, leaf area and assimilation pigmentse2
- Direction
- inhibitione2
- Qualifier
- after 17 days of cultivatione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germinating maize plants”
e2“A highly significant inhibition of growth, leaf area and assimilation pigments in plants growing in the nutrient solutions with 100 and 10 μmol dm‐3 of cadmium was registered after 17 days of cultivation”
Claim · model-written summary
Cadmium at 100 μmol dm‐3 reduced the content of assimilation pigments after 11 days.
- Organ / stage
- germinatingt0
- Treatment
- 100 μmol dm‐3 of cadmiume3
- Outcome
- content of assimilation pigmentse3
- Direction
- reductione3
- Qualifier
- after 11 days of culturee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germinating maize plants”
e3“In plants growing in the nutrient solution containing 100 μmol dm‐3 of cadmium a demonstrable reduction of the content of assimilation pigments was registered after 11 days of culture”
Claim · model-written summary
Increasing cadmium concentration widened the regulatory zone and optimum pH range toward the acid region.
- Organ / stage
- plant tissuee4
- Treatment
- increasing cadmium concentratione4
- Outcome
- range of the regulatory zone and the extent of optimum pHe4
- Direction
- increasede4
- Qualifier
- after 6 and 17 days of culturee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germinating maize plants”
e4“With increasing cadmium concentration in the nutrient solution as well as in the plant tissue after 6 and 17 days of culture both the range of the regulatory zone and the extent of optimum pH increased into the acid region”
Claim · model-written summary
The isoelectric pH of maize tissue decreased with increasing cadmium content in the solution.
- Treatment
- increasing cadmium contente5
- Outcome
- pH values of the isoelectric pointe5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“germinating maize plants”
e5“The pH values of the isoelectric point decreased with increasing cadmium content in the solution”
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See all 29 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.