Abstract
A field study was conducted to understand the effectiveness of foliar applications of ZnO-NPs (0, 50, 100 mg L−1) and SiO2-NPs (0, 25, 50 mg L−1) on potato plant growth, morphology, nutrient uptake, oxidative stress, and antioxidative response under drought conditions (i.e., 100% crop evapotranspiration ETc, 75% ETc, and 50% ETc). Results revealed that water deficiency significantly hampered plant growth and biomass production and stimulated oxidative stress in potatoes. However, the exogenous application of ZnO-NPs and SiO2-NPs significantly improved plant growth attributes such as the number of branches, plant height, fresh and dry biomass, leaf area, and leaf area index as compared with untreated plants. The foliar application of ZnO-NPs (i.e., 100 and 50 mg L−1) and SiO2-NPs (50 mg L−1) promoted the mineral ion accumulation in plants grown under water deficiency and thus resulted in higher NPK, Zn2+, Fe2+, and Mn2+ contents. A significant reduction in malondialdehyde (MDA) and hydrogen peroxide (H2O2) was found in plants treated with 100 mg L−1 ZnO followed by 50 mg L−1 SiO2 and 50 mg L−1 ZnO nanoparticles as compared with untreated plants, respectively. Furthermore, the aforesaid treatments resulted in the maximum activity of antioxidant enzymes (i.e., superoxide dismutase SOD, catalase CAT, polyphenol oxidase PPO, and ascorbate peroxidase APX) under water deficit stress. Similarly, the foliar application of ZnO and SiO2 nanoparticles improved nonenzymatic antioxidants such as total flavonoid content (TFC) and total phenolic compounds (TPC) as compared with untreated plants (control). Moreover, plant growth traits were significantly and positively correlated with mineral contents, while they were negatively correlated with MDA and H2O2. ZnO-NPs and SiO2-NPs applications improved biochemical traits, which might lead to enhancements in plant tolerance and improvements in potato growth, productivity, and quality traits under water shortage conditions.
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Claims 12
Claim · model-written summary
Water deficiency significantly hampered potato plant growth and biomass production.
- Taxon
- potatoes
Solanum tuberosume0 - Treatment
- water deficiencye0
- Outcome
- plant growth and biomass productione0
- Direction
- hamperede0
- Setting
- field studye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results revealed that water deficiency significantly hampered plant growth and biomass production and stimulated oxidative stress in potatoes”
e1“A field study was conducted”
Claim · model-written summary
Water deficiency stimulated oxidative stress in potatoes.
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- water deficiencye0
- Outcome
- oxidative stresse0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results revealed that water deficiency significantly hampered plant growth and biomass production and stimulated oxidative stress in potatoes”
Claim · model-written summary
ZnO and SiO2 nanoparticle foliar applications significantly improved potato branch number, plant height and fresh and dry biomass compared with untreated plants.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- exogenous application of ZnO-NPs and SiO2-NPse1
- Outcome
- number of branches, plant height, fresh and dry biomasse1
- Direction
- improvede1
- Comparator
- untreated plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the exogenous application of ZnO-NPs and SiO2-NPs significantly improved plant growth attributes such as the number of branches, plant height, fresh and dry biomass, leaf area, and leaf area index as compared with untreated plants”
e2“on potato plant growth”
Claim · model-written summary
ZnO and SiO2 nanoparticle foliar applications significantly improved potato leaf area and leaf area index compared with untreated plants.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- exogenous application of ZnO-NPs and SiO2-NPse1
- Outcome
- leaf area, and leaf area indexe1
- Direction
- improvede1
- Comparator
- untreated plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the exogenous application of ZnO-NPs and SiO2-NPs significantly improved plant growth attributes such as the number of branches, plant height, fresh and dry biomass, leaf area, and leaf area index as compared with untreated plants”
e2“on potato plant growth”
Claim · model-written summary
Foliar ZnO-NP and SiO2-NP applications under water deficiency raised potato NPK, Zn2+ and Fe2+ contents.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- foliar application of ZnO-NPs (i.e., 100 and 50 mg L−1) and SiO2-NPs (50 mg L−1)e4
- Outcome
- NPK, Zn2+, Fe2+e3
- Direction
- highere3
- Qualifier
- under water deficiencye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e3“promoted the mineral ion accumulation in plants grown under water deficiency and thus resulted in higher NPK, Zn2+, Fe2+, and Mn2+ contents”
e4“The foliar application of ZnO-NPs (i.e., 100 and 50 mg L−1) and SiO2-NPs (50 mg L−1) promoted”
Claim · model-written summary
Foliar ZnO-NP and SiO2-NP applications under water deficiency raised potato Mn2+ content.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- foliar application of ZnO-NPs (i.e., 100 and 50 mg L−1) and SiO2-NPs (50 mg L−1)e4
- Outcome
- Mn2+ contentse3
- Direction
- highere3
- Qualifier
- under water deficiencye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e3“promoted the mineral ion accumulation in plants grown under water deficiency and thus resulted in higher NPK, Zn2+, Fe2+, and Mn2+ contents”
e4“The foliar application of ZnO-NPs (i.e., 100 and 50 mg L−1) and SiO2-NPs (50 mg L−1) promoted”
Claim · model-written summary
The 100 mg L−1 ZnO followed by 50 mg L−1 SiO2 and 50 mg L−1 ZnO treatments significantly reduced potato MDA and H2O2 compared with untreated plants, respectively.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- 100 mg L−1 ZnO followed by 50 mg L−1 SiO2 and 50 mg L−1 ZnO nanoparticlese5
- Outcome
- malondialdehyde (MDA) and hydrogen peroxide (H2O2)e5
- Direction
- reductione5
- Qualifier
- respectivelye5
- Comparator
- untreated plantse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e5“A significant reduction in malondialdehyde (MDA) and hydrogen peroxide (H2O2) was found in plants treated with 100 mg L−1 ZnO followed by 50 mg L−1 SiO2 and 50 mg L−1 ZnO nanoparticles as compared with untreated plants, respectively”
Claim · model-written summary
The aforesaid nanoparticle treatments maximized superoxide dismutase, catalase and polyphenol oxidase activity in potatoes under water deficit stress.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- the aforesaid treatmentse6
- Outcome
- superoxide dismutase SOD, catalase CAT, polyphenol oxidase PPOe6
- Direction
- maximume6
- Qualifier
- under water deficit stresse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e6“the aforesaid treatments resulted in the maximum activity of antioxidant enzymes (i.e., superoxide dismutase SOD, catalase CAT, polyphenol oxidase PPO, and ascorbate peroxidase APX) under water deficit stress”
Claim · model-written summary
The aforesaid nanoparticle treatments maximized ascorbate peroxidase activity in potatoes under water deficit stress.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- the aforesaid treatmentse6
- Outcome
- ascorbate peroxidase APXe6
- Direction
- maximume6
- Qualifier
- under water deficit stresse6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e6“the aforesaid treatments resulted in the maximum activity of antioxidant enzymes (i.e., superoxide dismutase SOD, catalase CAT, polyphenol oxidase PPO, and ascorbate peroxidase APX) under water deficit stress”
Claim · model-written summary
Foliar ZnO and SiO2 nanoparticle applications improved potato total flavonoid content and total phenolic compounds compared with untreated plants.
- Taxon
- potatoSolanum tuberosume2
- Treatment
- foliar application of ZnO and SiO2 nanoparticlese7
- Outcome
- total flavonoid content (TFC) and total phenolic compounds (TPC)e7
- Direction
- improvede7
- Comparator
- untreated plantse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e7“the foliar application of ZnO and SiO2 nanoparticles improved nonenzymatic antioxidants such as total flavonoid content (TFC) and total phenolic compounds (TPC) as compared with untreated plants”
Claim · model-written summary
Potato plant growth traits were significantly and positively correlated with mineral contents.
- Taxon
- potatoSolanum tuberosume2
- Compound
- mineral contentse1
- Outcome
- plant growth traitse1
- Direction
- positivelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e1“plant growth traits were significantly and positively correlated with mineral contents, while they were negatively correlated with MDA and H2O2”
Claim · model-written summary
Potato plant growth traits were negatively correlated with MDA and H2O2.
- Taxon
- potatoSolanum tuberosume2
- Compound
- MDA and H2O2e1
- Outcome
- plant growth traitse1
- Direction
- negativelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“on potato plant growth”
e1“plant growth traits were significantly and positively correlated with mineral contents, while they were negatively correlated with MDA and H2O2”
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See all 12 papers →8 of 18 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.