Abstract
Water deficit stress is a critical constraint on global crop productivity, particularly in arid and semi-arid regions, where it severely compromises plant growth, yield, and nutritional quality. Sustainable strategies to enhance plant resilience under such conditions are urgently needed. Nano-silicon (Si-NPs) and sulfur (S) have emerged as promising amendments for mitigating abiotic stress, but their synergistic potential in alleviating water deficit stress in oilseed crops like canola (Brassica napus L.) remains underexplored. This study investigated the combined effects of Si-NPs (0, 100, 200, and 300 mg kg⁻1) and sulfur (0, 75, and 150 mg S kg⁻1) on the morphological, physiological, and nutritional responses of canola under three water deficit levels (0.8, 0.6, and 0.4 field capacity). Results demonstrated that water deficit stress significantly reduced photosynthetic efficiency, biomass accumulation, and yield components. However, Si-NPs and S application counteracted these adverse effects. Specifically, 100 mg Si-NPs kg⁻1 increased shoot and root weights by 19.3% and 22.9%, respectively, compared to the control. The most effective treatment—200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1—enhanced chlorophyll (1.76 mg g⁻1 FW), carotenoids (0.51 mg g⁻1 FW), phosphorus uptake (0.85%), and silicon accumulation in shoots (4.3%), while reducing lipid peroxidation (malondialdehyde: 23.53 µg g⁻1 FW). These findings highlight the synergistic role of Si-NPs and S in improving drought resilience by enhancing photosynthetic capacity, nutrient homeostasis, and oxidative stress mitigation. This study provides actionable insights for integrating nano-enabled and sustainable nutrient management practices to bolster crop productivity in water-scarce agroecosystems. Future research should validate these results under field conditions and elucidate the molecular mechanisms driving these stress-adaptive responses.
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Claims 10
Claim · model-written summary
Water deficit reduced photosynthetic efficiency and biomass accumulation.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- water deficit stresse0
- Outcome
- photosynthetic efficiency, biomass accumulatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“water deficit stress significantly reduced photosynthetic efficiency, biomass accumulation, and yield components”
t0“canola (Brassica napus L.)”
Claim · model-written summary
Water deficit reduced yield components.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- water deficit stresse0
- Outcome
- yield componentse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit stress significantly reduced photosynthetic efficiency, biomass accumulation, and yield components”
t0“canola (Brassica napus L.)”
Claim · model-written summary
Nano silicon and sulfur counteracted adverse water deficit effects.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- Si-NPs and S applicatione0
- Outcome
- adverse effectse0
- Direction
- counteractede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si-NPs and S application counteracted these adverse effects”
t0“canola (Brassica napus L.)”
Claim · model-written summary
The 100 mg nano silicon dose increased shoot weight by 19.3%.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- 100 mg Si-NPs kg⁻1e0
- Outcome
- shoot and root weightse0
- Direction
- increasede0
- Value
- 19.3%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100 mg Si-NPs kg⁻1 increased shoot and root weights by 19.3% and 22.9%, respectively, compared to the control”
t0“canola (Brassica napus L.)”
Claim · model-written summary
The 100 mg nano silicon dose increased root weight by 22.9%.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- 100 mg Si-NPs kg⁻1e0
- Outcome
- root weightse0
- Direction
- increasede0
- Value
- 22.9%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100 mg Si-NPs kg⁻1 increased shoot and root weights by 19.3% and 22.9%, respectively, compared to the control”
t0“canola (Brassica napus L.)”
Claim · model-written summary
Combined nano silicon and sulfur enhanced chlorophyll to 1.76 mg g⁻1 FW.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- 200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1e0
- Outcome
- chlorophylle0
- Direction
- enhancede0
- Value
- 1.76 mg g⁻1 FWe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1—enhanced chlorophyll (1.76 mg g⁻1 FW), carotenoids (0.51 mg g⁻1 FW), phosphorus uptake (0.85%), and silicon accumulation in shoots (4.3%), while reducing lipid peroxidation (malondialdehyde: 23.53 µg g⁻1 FW)”
t0“canola (Brassica napus L.)”
Claim · model-written summary
Combined nano silicon and sulfur enhanced carotenoids to 0.51 mg g⁻1 FW.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- 200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1e1
- Outcome
- carotenoidse0
- Direction
- enhancede0
- Value
- 0.51 mg g⁻1 FWe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced chlorophyll (1.76 mg g⁻1 FW), carotenoids (0.51 mg g⁻1 FW), phosphorus uptake (0.85%), and silicon accumulation in shoots (4.3%)”
e1“200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1”
t0“canola (Brassica napus L.)”
Claim · model-written summary
Combined nano silicon and sulfur enhanced phosphorus uptake to 0.85%.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- 200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1e1
- Outcome
- phosphorus uptakee0
- Direction
- enhancede0
- Value
- 0.85%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced chlorophyll (1.76 mg g⁻1 FW), carotenoids (0.51 mg g⁻1 FW), phosphorus uptake (0.85%), and silicon accumulation in shoots (4.3%)”
e1“200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1”
t0“canola (Brassica napus L.)”
Claim · model-written summary
Combined nano silicon and sulfur enhanced shoot silicon accumulation to 4.3%.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- 200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1e1
- Outcome
- silicon accumulation in shootse0
- Direction
- enhancede0
- Value
- 4.3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced chlorophyll (1.76 mg g⁻1 FW), carotenoids (0.51 mg g⁻1 FW), phosphorus uptake (0.85%), and silicon accumulation in shoots (4.3%)”
e1“200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1”
t0“canola (Brassica napus L.)”
Claim · model-written summary
Combined nano silicon and sulfur reduced lipid peroxidation, with malondialdehyde at 23.53 µg g⁻1 FW.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- 200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1e1
- Outcome
- lipid peroxidatione0
- Direction
- reducinge0
- Value
- 23.53 µg g⁻1 FWe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reducing lipid peroxidation (malondialdehyde: 23.53 µg g⁻1 FW)”
e1“200 mg Si-NPs kg⁻1 combined with 75 mg S kg⁻1”
t0“canola (Brassica napus L.)”
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See all 8 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.