The Effects of Foliar Supplementation of Silicon on Physiological and Biochemical Responses of Winter Wheat to Drought Stress during Different Growth Stages
Abstract
:1. Introduction
2. Results
2.1. Plant Growth
2.2. Photosynthesis and Chlorophyll Content
2.3. Osmotic Solute Content
2.4. Superoxide Radicals and MDA Content
2.5. Antioxidant Enzyme Activity
2.6. Grain Yield
2.7. Si concentration in Plant Tissues and Soil
2.8. Correlation Analysis
3. Discussion
3.1. Effect of Si on Plant Growth, and Photosynthesis under Water Stress
3.2. Effect of Si on Osmotic Adjustment and Antioxidant Defense under Water Stress
3.3. Effect of Si on Wheat Biomass and Yield under Water Stress
4. Materials and Methods
4.1. Experimental Site and Treatments
4.2. Sampling and Measurements
- Leaf samples
- Dry weight of above biomass and grain yield
- Photosynthetic rate, transpiration rate and stomatal conductance
4.3. Statistical Analysis
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Factor | Wheat Yield (kg ha−1) | Straw Biomass (kg ha−1) | Harvest Index (%) |
---|---|---|---|
D-jointing+Si | 10,804 ± 354 ab | 17,180 ± 780 b | 38.6 ± 0.58 a |
D-anthesis+Si | 10,175 ± 313 b | 16,965 ± 612 b | 37.5 ± 1.15 a |
D-filling+Si | 10,421 ± 339 bc | 17,750 ± 864 ab | 37.0 ± 1.53 a |
D-jointing-Si | 10,352 ± 116 bc | 17,198 ± 381 b | 37.6 ± 0.58 a |
D-anthesis-Si | 9858 ± 694 bc | 16,755 ± 665 b | 37.0 ± 0.63 a |
D-filling-Si | 9290 ± 430 c | 18,113 ± 1362 ab | 33.9 ± 1.53 b |
CK | 11,450 ± 1119 a | 18,840 ± 223 a | 37.8 ± 2.08 a |
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Ning, D.; Zhang, Y.; Li, X.; Qin, A.; Huang, C.; Fu, Y.; Gao, Y.; Duan, A. The Effects of Foliar Supplementation of Silicon on Physiological and Biochemical Responses of Winter Wheat to Drought Stress during Different Growth Stages. Plants 2023, 12, 2386. https://doi.org/10.3390/plants12122386
Ning D, Zhang Y, Li X, Qin A, Huang C, Fu Y, Gao Y, Duan A. The Effects of Foliar Supplementation of Silicon on Physiological and Biochemical Responses of Winter Wheat to Drought Stress during Different Growth Stages. Plants. 2023; 12(12):2386. https://doi.org/10.3390/plants12122386
Chicago/Turabian StyleNing, Dongfeng, Yingying Zhang, Xiaojing Li, Anzhen Qin, Chao Huang, Yuanyuan Fu, Yang Gao, and Aiwang Duan. 2023. "The Effects of Foliar Supplementation of Silicon on Physiological and Biochemical Responses of Winter Wheat to Drought Stress during Different Growth Stages" Plants 12, no. 12: 2386. https://doi.org/10.3390/plants12122386