Mitigative effects and toxic risks of nano-zinc oxide on soybean under drought stress
Northeast Agricultural University · Heilongjiang Vocational Institute of Ecological Engineering
Abstract
Soybean production is frequently limited by drought stress. While zinc oxide nanoparticles (ZnO NPs) have shown potential in enhancing plant stress tolerance, their efficacy and toxicity under drought conditions remain poorly understood, especially in a genotype-dependent context. This study applied drought stress to two soybean varieties with significantly different drought resistance (drought-tolerant Heinong 87, HN87, and drought-sensitive Hefeng 55, HF55). The effects of foliar spraying with zinc oxide nanoparticles at different concentrations (50, 100, 200, and 400 mg/L) and application frequencies (1–6 times) were tested. Low concentrations of ZnO NPs (≤ 200 mg/L) significantly alleviated drought stress,…
Citation impact
- FWCI
- 39.99
- Percentile
- 100%
- References
- 50
Authors
6Topics & keywords
- Stomatal conductance
- Drought stress
- Zinc
- Photosynthesis
- Drought tolerance
- Cultivar
- Oxide
- Zero hunger