Abstract
Microelements are inorganic compounds involved in the synthesis of enzymes and biologically active substances. To evaluate the physiological responses of maize to ZnSO4 and FeSO4 under drought stress, a field experiment was conducted on maize plants grown under different soil moistures and treated with foliar ZnSO4 and FeSO4 applications. Drought stress especially at early seed growth stage significantly reduced grain yield and Fv/Fm ratio; however, the activity of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and glutathione reductase (GR) was enhanced under drought stress. Foliar applied ZnSO4 and FeSO4 boosted the grain yield under non irrigation at vegetative growth stage and at early seed growth stage, respectively. Between grain yield and MDA concentration (r= -0.73), superoxide dismutase (r= -0.57), peroxidase (r= -0.49), H2O2 (r= -0.67) and catalase enzyme (r= -0.42) significant and negative correlation were observed. Combined application of ZnSO4 and FeSO4 resulted in alleviation of maize plant drought stress by Zn and Fe-mediated improvement in photosynthetic attributes. In addition, the foliar application of ZnSO4 and FeSO4 regulated physiological processes in maize plants and alleviated the adverse effects of water stress. According to the results, ZnSO4 and FeSO4 could be used for improving maize growth under drought stress.
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Claims 11
Claim · model-written summary
Drought at early seed growth significantly reduced grain yield and Fv/Fm.
- Organ / stage
- early seed growth stagee0
- Treatment
- Drought stresse0
- Outcome
- grain yield and Fv/Fm ratioe0
- Direction
- reducede0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress especially at early seed growth stage significantly reduced grain yield and Fv/Fm ratio”
t0“maize”
Claim · model-written summary
Drought enhanced SOD, POD, CAT and GR activity.
- Treatment
- drought stresse0
- Outcome
- activity of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and glutathione reductase (GR)e0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activity of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and glutathione reductase (GR) was enhanced under drought stress”
t0“maize”
Claim · model-written summary
Foliar ZnSO4 raised grain yield without irrigation at vegetative growth.
- Treatment
- Foliar applied ZnSO4e0
- Outcome
- grain yielde0
- Direction
- boostede0
- Qualifier
- non irrigation at vegetative growth stagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applied ZnSO4 and FeSO4 boosted the grain yield under non irrigation at vegetative growth stage and at early seed growth stage, respectively”
t0“maize”
Claim · model-written summary
Foliar FeSO4 raised grain yield without irrigation at early seed growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applied ZnSO4 and FeSO4 boosted the grain yield under non irrigation at vegetative growth stage and at early seed growth stage, respectively”
t0“maize”
Claim · model-written summary
Grain yield was negatively correlated with MDA concentration.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between grain yield and MDA concentration (r= -0.73), superoxide dismutase (r= -0.57), peroxidase (r= -0.49), H2O2 (r= -0.67) and catalase enzyme (r= -0.42) significant and negative correlation were observed”
t0“maize”
Claim · model-written summary
Grain yield was negatively correlated with superoxide dismutase.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between grain yield and MDA concentration (r= -0.73), superoxide dismutase (r= -0.57), peroxidase (r= -0.49), H2O2 (r= -0.67) and catalase enzyme (r= -0.42) significant and negative correlation were observed”
t0“maize”
Claim · model-written summary
Grain yield was negatively correlated with peroxidase.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between grain yield and MDA concentration (r= -0.73), superoxide dismutase (r= -0.57), peroxidase (r= -0.49), H2O2 (r= -0.67) and catalase enzyme (r= -0.42) significant and negative correlation were observed”
t0“maize”
Claim · model-written summary
Grain yield was negatively correlated with H2O2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between grain yield and MDA concentration (r= -0.73), superoxide dismutase (r= -0.57), peroxidase (r= -0.49), H2O2 (r= -0.67) and catalase enzyme (r= -0.42) significant and negative correlation were observed”
t0“maize”
Claim · model-written summary
Grain yield was negatively correlated with catalase.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Between grain yield and MDA concentration (r= -0.73), superoxide dismutase (r= -0.57), peroxidase (r= -0.49), H2O2 (r= -0.67) and catalase enzyme (r= -0.42) significant and negative correlation were observed”
t0“maize”
Claim · model-written summary
Combined zinc and iron application alleviated maize drought stress through improved photosynthetic attributes.
- Treatment
- Combined application of ZnSO4 and FeSO4e0
- Outcome
- maize plant drought stresse0
- Qualifier
- improvement in photosynthetic attributese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined application of ZnSO4 and FeSO4 resulted in alleviation of maize plant drought stress by Zn and Fe-mediated improvement in photosynthetic attributes”
Claim · model-written summary
Foliar ZnSO4 and FeSO4 were recommended to improve maize growth under drought.
- Outcome
- improving maize growth under drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ZnSO4 and FeSO4 could be used for improving maize growth under drought stress”
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