Abstract
Abstract Uptake of toxic metals by plants has been of great interest to environmental scientists because this might harm the growth of plant and cause health hazard to man and animal. In this study, the effects of two elements (lead and cadmium) which cause high concern because of their cummulative nature have been studied on broad beans. Both elements have been found to affect the growth of broad beans and this effect increased with the increase of concentration of metal in solutions used for root‐treatment or for foliar‐treatment of plant. The effect of foliar‐treatment was very much higher than the effect of root‐treatment by lead or cadmium. Cadmium was found more toxic to plant growth than lead. The effect of cadmium treatment was more on the growth of fruits while the effect of lead treatment was more on the roots of broad beans. The least affected part by lead or cadmium was the stem of plant. Both the concentration and the whole content of metal in plants and its varoius parts (roots, stem, leaves and fruits) increased steadily with the increase of cadmium or lead concentration in solutions used for either root‐treatment or foliar‐treatment. Concentration of metal ions was higher in roots and leaves than in fruits and stems of treated plants. The uptake of metal to plant was calculated to be a very small part of the total amount of metal added during treatment. Some explanations have been suggested in this study to explain the results obtained.
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Claims 10
Claim · model-written summary
Lead and cadmium treatment affected the growth of broad beans.
- Taxon
- broad beans
Vicia fabae1 - Treatment
- lead and cadmiume0
- Outcome
- growthe1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effects of two elements (lead and cadmium)”
e1“Both elements have been found to affect the growth of broad beans”
Claim · model-written summary
The effect of lead and cadmium on broad bean growth increased with metal concentration in the treatment solutions.
- Taxon
- broad beansVicia fabae1
- Treatment
- concentration of metal in solutionse2
- Outcome
- effecte2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e2“this effect increased with the increase of concentration of metal in solutions”
Claim · model-written summary
Foliar treatment with lead or cadmium affected broad bean growth much more than root treatment did.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e3“The effect of foliar‐treatment was very much higher than the effect of root‐treatment by lead or cadmium”
Claim · model-written summary
Cadmium was more toxic to broad bean growth than lead.
- Taxon
- broad beansVicia fabae1
- Treatment
- cadmiume4
- Outcome
- plant growthe4
- Direction
- more toxice4
- Comparator
- leade4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e4“Cadmium was found more toxic to plant growth than lead”
Claim · model-written summary
Cadmium treatment had a greater effect on fruit growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e5“The effect of cadmium treatment was more on the growth of fruits”
Claim · model-written summary
Lead treatment had a greater effect on broad bean roots.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the effect of lead treatment was more on the roots of broad beans”
Claim · model-written summary
The stem was the plant part least affected by lead or cadmium.
- Taxon
- broad beansVicia fabae1
- Organ / stage
- steme7
- Treatment
- lead or cadmiume7
- Outcome
- affected parte7
- Direction
- leaste7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e7“The least affected part by lead or cadmium was the stem of plant”
Claim · model-written summary
Metal concentration and whole content in plant parts increased with increasing cadmium or lead concentration in the treatment solutions.
- Taxon
- broad beansVicia fabae1
- Organ / stage
- roots, stem, leaves and fruitse7
- Treatment
- cadmium or lead concentratione7
- Outcome
- the concentration and the whole content of metale7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e7“Both the concentration and the whole content of metal in plants and its varoius parts (roots, stem, leaves and fruits) increased steadily with the increase of cadmium or lead concentration”
Claim · model-written summary
Metal ion concentration was higher in roots and leaves than in fruits and stems of treated plants.
- Taxon
- broad beansVicia fabae1
- Organ / stage
- roots and leavese7
- Outcome
- Concentration of metal ionse7
- Direction
- highere7
- Comparator
- fruits and stemse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e7“Concentration of metal ions was higher in roots and leaves than in fruits and stems of treated plants”
Claim · model-written summary
Plant uptake of metal was a very small part of the total metal added during treatment.
- Taxon
- broad beansVicia fabae1
- Outcome
- uptake of metal to plante7
- Qualifier
- a very small part of the total amount of metal addede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Both elements have been found to affect the growth of broad beans”
e7“The uptake of metal to plant was calculated to be a very small part of the total amount of metal added during treatment”
The same questions in other papers
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- positive
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See all 66 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.