Summary
This hydroponic greenhouse experiment investigated foliar spray treatments as a mitigation strategy for tomato plants grown under saline stress in Egypt. Seven treatments including potassium nitrate, algae extract, proline, and micronutrient combinations (iron, potassium, boron, silicon) were tested at three salinity levels. Potassium nitrate was the most effective treatment for enhancing nutritional status, followed by algae extract and combined micronutrient formulations, suggesting potential practical interventions for salt-stressed hydroponic cultivation.
Regional applicability
This research is directly relevant to United Kingdom hydroponic and protected cropping systems, particularly where saline water quality or recirculating systems may present salinity challenges. The findings on foliar treatment efficacy under controlled greenhouse conditions could inform UK horticultural practice, though local validation would be needed given differences in cultivar selection, growing media, and climate control approaches.
Key measures
Chemical composition, chlorophyll content, plant growth parameters, nutritional characteristics under salinity stress (2, 4, 6 dSm⁻¹ NaCl)
Outcomes reported
The study evaluated the effects of seven foliar spray treatments (control, potassium, silicon, proline, algae extract, and various micronutrient combinations) on chemical composition and chlorophyll content of tomato plants grown hydroponically under three salinity levels (2, 4, and 6 dSm⁻¹). Treatment efficacy was ranked based on improvements in plant nutritional status under saline stress.
Topic tags
Dig deeper with Pulse AI.
Ask about this record, its theme or its relevance to UK farming and policy. Pulse AI uses selected catalogue evidence and cites the sources it draws on.