Mitigating Salt Stress with Biochar: Effects on Yield and Quality of Dwarf Tomato Irrigated with Brackish Water
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View abstract on PubMed
Summary
This summary is machine-generated.Biochar application enhances tomato yield and fruit count under saline conditions, improving crop resilience without compromising fruit quality. This sustainable soil amendment offers a promising solution for horticultural production facing environmental stresses.
Area Of Science
- Agricultural Science
- Environmental Science
- Plant Science
Background
- Environmental stresses, like increased salinity, threaten global food supply stability.
- Brackish water in Mediterranean coastal areas limits horticultural production.
- Biochar is a potential tool to mitigate salt stress effects in agriculture.
Purpose Of The Study
- To investigate the effects of poplar biochar on tomato yield and quality under saline conditions.
- To evaluate different biochar concentrations (0, 1, 2% v/v) and NaCl levels (0, 40, 80 mM).
- To assess the impact of biochar on dwarf San Marzano ecotype tomatoes in a protected environment.
Main Methods
- Tomatoes were grown in a protected environment with varying biochar concentrations and NaCl irrigation.
- Yield, fruit number, and quality parameters (dry matter, soluble solids, polyphenols) were measured.
- Organoleptic and functional fruit characteristics were analyzed.
Main Results
- Increased salinity (80 mM NaCl) reduced total yield (-63%) and fruit number (-25%) but improved quality parameters (dry matter +75%, soluble solids +56%, polyphenols +43%).
- Biochar supplementation (1-2% v/v) increased total yield (+23%) and fruit number (+26%) compared to controls.
- Biochar did not negatively alter the functional or organoleptic fruit characteristics.
Conclusions
- Poplar biochar shows potential as a sustainable soil amendment to improve tomato production under high salinity.
- Biochar can enhance crop yield and fruit set in challenging environmental conditions.
- Further research is needed to elucidate the specific adaptation mechanisms induced by biochar under suboptimal conditions.
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