Abstract
Abstract The experiment was conducted in the Department of Horticulture and Landscape Engineering plant canopy, College of Agriculture, University of Basra, during the growing season 2023-2024. The aim is to know the antioxidant glutathione’s ability to reduce the effects of pollution of the apple variety Sidr seedlings with heavy elements (lead + cadmium). The experiment was designed as a factorial experiment RCBD for two factors. Two types of pollutants, namely lead and cadmium and three concentrations for each of them represented the first factor: lead (200, 100, 0 mg. L −1 , cadmium (6, 3, 0) mg. L −1 . The second factor was spraying with the antioxidant glutathione at concentrations (200, 100, 0) mg. L −1 . The results were statistically analyzed using the least significant difference (LSD) test at a probability level of 5% and using the statistical program GenStat. The results showed that increasing the concentration of pollutants had a negative effect on most of the traits under study. The greatest effect was for the treatment of 200 mg. L −1 lead and 6 mg. L −1 cadmium, as the results recorded a decrease in each of the traits of seedling height, number of branches, number of leaves, stem diameter, leaf area, fresh and dry weight, and it reached 0.13. 0.83, 1.99, 16.96, 120.11, 2.00, 124.25 respectively. As for spraying with glutathione, the treatment of spraying with glutathione at a concentration of 200 mg.L −1 recorded the best results for each of the traits of seedling height, number of branches, number of leaves, stem diameter, leaf area, and average fresh and dry weight of leaves, and reached 139.56, 4.00, 139.00, 21.46, 3.13, 1.19, 0.21 respectively. The interaction between the two study factors was significant, as the interaction treatment (0 and 200 mg.L −1 glutathione) recorded the best results in most of the traits under study.
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Claims 7
Claim · model-written summary
Higher pollutant concentrations negatively affected most studied seedling traits.
- Taxon
- Ziziphus mauritiana Lam.
Ziziphus mauritianat0 - Treatment
- increasing the concentration of pollutantse0
- Outcome
- most of the traits under studye0
- Direction
- negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing the concentration of pollutants had a negative effect on most of the traits under study”
t0“Ziziphus mauritiana Lam.”
Claim · model-written summary
The 200 mg L−1 lead and 6 mg L−1 cadmium treatment decreased seedling height, branch count and leaf count.
- Taxon
- Ziziphus mauritiana Lam.Ziziphus mauritianat0
- Treatment
- 200 mg. L −1 lead and 6 mg. L −1 cadmiume0
- Outcome
- seedling height, number of branches, number of leavese0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest effect was for the treatment of 200 mg. L −1 lead and 6 mg. L −1 cadmium, as the results recorded a decrease in each of the traits of seedling height, number of branches, number of leaves, stem diameter, leaf area, fresh and dry weight, and it reached 0.13. 0.83, 1.99, 16.96, 120.11, 2.00, 124.25 respectively.”
t0“Ziziphus mauritiana Lam.”
Claim · model-written summary
The 200 mg L−1 lead and 6 mg L−1 cadmium treatment decreased stem diameter, leaf area and fresh and dry weight.
- Taxon
- Ziziphus mauritiana Lam.Ziziphus mauritianat0
- Treatment
- 200 mg. L −1 lead and 6 mg. L −1 cadmiume0
- Outcome
- stem diameter, leaf area, fresh and dry weighte0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest effect was for the treatment of 200 mg. L −1 lead and 6 mg. L −1 cadmium, as the results recorded a decrease in each of the traits of seedling height, number of branches, number of leaves, stem diameter, leaf area, fresh and dry weight, and it reached 0.13. 0.83, 1.99, 16.96, 120.11, 2.00, 124.25 respectively.”
t0“Ziziphus mauritiana Lam.”
Claim · model-written summary
Glutathione spraying at 200 mg L−1 produced the best seedling height, branch count and leaf count results.
- Taxon
- Ziziphus mauritiana Lam.Ziziphus mauritianat0
- Treatment
- spraying with glutathione at a concentration of 200 mg.L −1e0
- Outcome
- seedling height, number of branches, number of leavese0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying with glutathione at a concentration of 200 mg.L −1 recorded the best results for each of the traits of seedling height, number of branches, number of leaves, stem diameter, leaf area, and average fresh and dry weight of leaves, and reached 139.56, 4.00, 139.00, 21.46, 3.13, 1.19, 0.21 respectively.”
t0“Ziziphus mauritiana Lam.”
Claim · model-written summary
Glutathione spraying at 200 mg L−1 produced the best stem diameter, leaf area and leaf weight results.
- Taxon
- Ziziphus mauritiana Lam.Ziziphus mauritianat0
- Treatment
- spraying with glutathione at a concentration of 200 mg.L −1e0
- Outcome
- stem diameter, leaf area, and average fresh and dry weight of leavese0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying with glutathione at a concentration of 200 mg.L −1 recorded the best results for each of the traits of seedling height, number of branches, number of leaves, stem diameter, leaf area, and average fresh and dry weight of leaves, and reached 139.56, 4.00, 139.00, 21.46, 3.13, 1.19, 0.21 respectively.”
t0“Ziziphus mauritiana Lam.”
Claim · model-written summary
The interaction between pollutants and glutathione was significant.
- Taxon
- Ziziphus mauritiana Lam.Ziziphus mauritianat0
- Treatment
- 0 and 200 mg.L −1 glutathionee0
- Outcome
- interaction between the two study factorse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between the two study factors was significant, as the interaction treatment (0 and 200 mg.L −1 glutathione) recorded the best results in most of the traits under study.”
t0“Ziziphus mauritiana Lam.”
Claim · model-written summary
The interaction treatment with 0 and 200 mg L−1 glutathione gave the best results in most studied traits.
- Taxon
- Ziziphus mauritiana Lam.Ziziphus mauritianat0
- Treatment
- 0 and 200 mg.L −1 glutathionee0
- Outcome
- most of the traits under studye0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the interaction treatment (0 and 200 mg.L −1 glutathione) recorded the best results in most of the traits under study”
t0“Ziziphus mauritiana Lam.”
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See all 20 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.