Abstract
Nowadays heavy metal contamination of soils became a big problem with accumulate in plants and affects animals and humans health. This study investigated the effects of soil lead concentration on the quantitative and qualitative characteristics in greenhouse planted tomato. Experiment was carried out based on completely randomized block design (CRBD) with three repetitions and four different levels of lead (control, 250, 500 and 1000 mg in kg of soil). Results showed that different lead concentrations had significant effect on chlorophyll b, carotenoid, bush height and the number of bush branches, number of leaf, stems diagonal and root lead concentration, chlorophyll a, and lead concentration in shoot. Maximum and minimum content of chlorophyll a and b were 6.64 and 3.34 mg.g -1 leave fresh weight respectively. The highest and lowest brush height was observed in control and 1000 mg.kg -1 treatments of lead.
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Claims 6
Claim · model-written summary
Lead concentrations significantly affected tomato chlorophyll b and carotenoid levels.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- different lead concentrationse0
- Outcome
- chlorophyll b, carotenoide0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different lead concentrations had significant effect on chlorophyll b, carotenoid”
e1“greenhouse planted tomato”
Claim · model-written summary
Lead concentrations significantly affected tomato bush height, branches and leaf number.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- different lead concentrationse0
- Outcome
- bush height and the number of bush branches, number of leafe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different lead concentrations had significant effect on chlorophyll b, carotenoid, bush height and the number of bush branches, number of leaf”
e1“greenhouse planted tomato”
Claim · model-written summary
Lead concentrations significantly affected stem diameter and root lead concentration.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- leade0
- Outcome
- stems diagonal and root lead concentratione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stems diagonal and root lead concentration”
e1“greenhouse planted tomato”
Claim · model-written summary
Lead concentrations significantly affected chlorophyll a and shoot lead concentration.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- leade0
- Outcome
- chlorophyll a, and lead concentration in shoote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll a, and lead concentration in shoot”
e1“greenhouse planted tomato”
Claim · model-written summary
The maximum and minimum chlorophyll a and b contents were 6.64 and 3.34 mg.g -1 fresh leaf weight.
- Taxon
- tomatoSolanum lycopersicume1
- Outcome
- content of chlorophyll a and be0
- Direction
- Maximum and minimume0
- Value
- 6.64 and 3.34 mg.g -1 leave fresh weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum and minimum content of chlorophyll a and b were 6.64 and 3.34 mg.g -1 leave fresh weight respectively”
e1“greenhouse planted tomato”
Claim · model-written summary
Bush height was highest in control plants and lowest at 1000 mg.kg -1 lead.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- 1000 mg.kg -1 treatments of leade0
- Outcome
- brush heighte0
- Direction
- loweste0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest and lowest brush height was observed in control and 1000 mg.kg -1 treatments of lead”
e1“greenhouse planted tomato”
The same questions in other papers
lead atom · growth · Solanum lycopersicum (tomato)Positive and negative results
16 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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See all 18 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.