Abstract
Drought and salinity intrusion have been constraints on sugarcane production in coastal areas. Improving water and nutrient uptake and reducing sodium chloride accumulation by applying biochar could be an effective way to solve the problem. A pot experiment was done following a Split-plot design with three replications under greenhouse conditions. We applied four irrigation schedules for the main-plot treatments to maintain different growing conditions, including control, drought, saline, and combined saline-drought (saline stress followed by drought stress). The sub-plot factor was three application rates of oak biochar of 0, 5, and 10 tons ha−1. Here, we found that single stress conditions reduced sugarcane growth for plant height, stalk diameter, leaf number, leaf size and area, total biomass, root mass, and root volume. Physiological parameters, including leaf SPAD, the quantum efficiency of photosystem II, ion leakage, and relative water deficit, also dropped under stress effects. Our results also found that the combined saline and drought stress induced more damage than either stress alone and led to a greater reduction in sugarcane growth. Applying biochar positively affected sugarcane’s growth and recovery after these stress periods. The 10 tons of biochar ha−1 rate was the optimum dose for sugarcane production in drought and saline-affected areas.
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Claims 9
Claim · model-written summary
Single stress conditions reduced sugarcane plant height, stalk diameter, leaf number.
- Taxon
- sugarcanee0
- Treatment
- single stress conditionse0
- Outcome
- plant height, stalk diameter, leaf numbere0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Here, we found that single stress conditions reduced sugarcane growth for plant height, stalk diameter, leaf number, leaf size and area, total biomass, root mass, and root volume.”
Claim · model-written summary
Single stress conditions reduced sugarcane leaf size and area, total biomass.
- Taxon
- sugarcanee0
- Treatment
- single stress conditionse0
- Outcome
- leaf size and area, total biomasse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Here, we found that single stress conditions reduced sugarcane growth for plant height, stalk diameter, leaf number, leaf size and area, total biomass, root mass, and root volume.”
Claim · model-written summary
Single stress conditions reduced sugarcane root mass, and root volume.
- Taxon
- sugarcanee0
- Treatment
- single stress conditionse0
- Outcome
- root mass, and root volumee0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Here, we found that single stress conditions reduced sugarcane growth for plant height, stalk diameter, leaf number, leaf size and area, total biomass, root mass, and root volume.”
Claim · model-written summary
Stress lowered sugarcane leaf SPAD, the quantum efficiency of photosystem II.
Verbatim
e0“Physiological parameters, including leaf SPAD, the quantum efficiency of photosystem II, ion leakage, and relative water deficit, also dropped under stress effects.”
t0“sugarcane”
Claim · model-written summary
Stress lowered sugarcane ion leakage, and relative water deficit.
Verbatim
e0“Physiological parameters, including leaf SPAD, the quantum efficiency of photosystem II, ion leakage, and relative water deficit, also dropped under stress effects.”
t0“sugarcane”
Claim · model-written summary
Combined saline and drought stress caused more damage than either stress alone.
Verbatim
e0“Our results also found that the combined saline and drought stress induced more damage than either stress alone and led to a greater reduction in sugarcane growth.”
Claim · model-written summary
Combined stress caused a greater reduction in sugarcane growth than either stress alone.
Verbatim
e0“Our results also found that the combined saline and drought stress induced more damage than either stress alone and led to a greater reduction in sugarcane growth.”
Claim · model-written summary
Biochar improved sugarcane growth and recovery after stress.
- Taxon
- sugarcanee0
- Treatment
- Applying biochare0
- Outcome
- sugarcane’s growth and recoverye0
- Direction
- positively affectede0
Not reportedComparator
Verbatim
e0“Applying biochar positively affected sugarcane’s growth and recovery after these stress periods.”
Claim · model-written summary
The authors identify 10 tons of biochar ha−1 as the optimum rate for sugarcane production in drought and saline-affected areas.
Verbatim
e0“The 10 tons of biochar ha−1 rate was the optimum dose for sugarcane production in drought and saline-affected areas.”
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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.