Summary: This study investigated the effects of plant-derived protein hydrolysates (PHs) applied as either foliar spray or substrate drench on tomato plants under limited water availability, focusing on morpho-physiological traits and metabolic responses. The goal was to understand the biostimulant action of different PH application methods in enhancing plant performance under water stress.
The study demonstrated that substrate drench application of plant-derived protein hydrolysates (PHs) is more effective than foliar spray in improving tomato plant performance under limited water availability. The enhanced biomass accumulation, better water use efficiency, and improved metabolic profile suggest that drench application of PHs could be a valuable strategy for increasing plant resilience to water stress. The results highlight the potential of PHs to enhance tolerance to abiotic stressors, making them a promising tool for sustainable agriculture in challenging environmental conditions.
Publication: Frontiers in Plant Science
