Abstract
Abstract An experiment developed in soilless culture was used to study the effect of several levels of cobalt (Co) (0, 5, 15, and 30 mg.L‐1) on yield and nutrient evolution of the tomato fruits (Lycopersicon esculentum M. cv. Ramy). The incidence of this pollutant in leaf chlorophyll contents was also studied. Increasing concentration of Co in nutrient solution reduced drastically yield in tomato plants. Total, a and b chlorophyll contents were affected by Co level in nutrient solution. A significant increase of nitrogen (N), phosphorus (P), calcium (Ca), and copper (Cu) in the fruit in function of Co treatments were observed. Similar evolution in iron (Fe) and manganese (Mn) fruit content affected by Co presence in higher treatment were obtained. No significant effect of Co presence on potassium (K), magnesium (Mg), sodium (Na), and zinc (Zn) fruit contents were observed. Cobalt absorption was very high, with values of Co in fruit around 250 μg Co g‐1.
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Claims 6
Claim · model-written summary
Increasing cobalt concentration drastically reduced tomato yield.
- Taxon
- tomato plants
Solanum lycopersicume0 - Treatment
- Increasing concentration of Co in nutrient solutione0
- Outcome
- yielde0
- Direction
- reduced drasticallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing concentration of Co in nutrient solution reduced drastically yield in tomato plants.”
Claim · model-written summary
Cobalt level affected total, a, and b leaf chlorophyll content.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Material
- Ramye1
- Treatment
- Co level in nutrient solutione0
- Outcome
- Total, a and b chlorophyll contentse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total, a and b chlorophyll contents were affected by Co level in nutrient solution.”
e1“tomato fruits (Lycopersicon esculentum M. cv. Ramy)”
Claim · model-written summary
Cobalt treatment significantly increased fruit nitrogen, phosphorus, calcium, and copper.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Organ / stage
- fruite0
- Treatment
- Co treatmentse0
- Outcome
- nitrogen (N), phosphorus (P), calcium (Ca), and copper (Cu) in the fruite0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant increase of nitrogen (N), phosphorus (P), calcium (Ca), and copper (Cu) in the fruit in function of Co treatments were observed.”
e1“tomato fruits (Lycopersicon esculentum M. cv. Ramy)”
Claim · model-written summary
Higher cobalt treatment similarly affected fruit iron and manganese content.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Organ / stage
- fruite0
- Treatment
- Co presence in higher treatmente0
- Outcome
- iron (Fe) and manganese (Mn) fruit contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar evolution in iron (Fe) and manganese (Mn) fruit content affected by Co presence in higher treatment were obtained.”
e1“tomato fruits (Lycopersicon esculentum M. cv. Ramy)”
Claim · model-written summary
Cobalt presence had no statistically significant effect on fruit potassium, magnesium, sodium, and zinc content.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Treatment
- Co presencee0
- Outcome
- potassium (K), magnesium (Mg), sodium (Na), and zinc (Zn) fruit contentse0
- Direction
- No significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant effect of Co presence on potassium (K), magnesium (Mg), sodium (Na), and zinc (Zn) fruit contents were observed.”
e1“tomato fruits (Lycopersicon esculentum M. cv. Ramy)”
Claim · model-written summary
Fruit cobalt content reached around 250 μg Co g‐1, indicating high cobalt absorption.
- Taxon
- Lycopersicon esculentumSolanum lycopersicume1
- Organ / stage
- fruite0
- Outcome
- values of Co in fruite0
- Direction
- very highe0
- Value
- 250 μg Co g‐1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt absorption was very high, with values of Co in fruit around 250 μg Co g‐1.”
e1“tomato fruits (Lycopersicon esculentum M. cv. Ramy)”
The same questions in other papers
cobalt atom · yield · Solanum lycopersicum (tomato)Results differ
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
1 paper more in this group
See all 5 papers →cobalt atom · nutrient: content · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- negative
fertilization · yield · Solanum lycopersicum (tomato)Positive and negative results
127 papers in the same direction as this paper · 850 in the opposite direction
- positive
- positive
- positive
974 papers more in this group
See all 978 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.