Deficit Irrigation with Ascophyllum nodosum Extract Application as a Strategy to Increase Tomato Yield and Quality

Deficit irrigation is applied to several agricultural crops as a water-saving strategy. The tomato plant sensitive water stress; however, integration with biostimulant applications, based on seaweed extracts, could be strategy for plants adapting this abiotic condition. objective of study was evaluate agronomic and quality aspects cultivated under deficit combined Ascophyllum nodosum extract (ANE) application. experiment conducted using completely randomized design two replacement levels, 70 100% crop evapotranspiration (ETc), five doses ANE (0, 0.1, 0.2, 0.3 0.4%) via soil drench. interaction between ETc significant (p < 0.05) in terms growth, physiological parameters, fruit yield, yield components quality. Results indicated that when the irrigation, higher dose required achieve better development compared condition, where lower. Under largest obtained 0.4% ANE, ETc, 0.2% ANE. applications were also effective increasing height, stem diameter, biomass, leaf area, chlorophyll relative content. In addition, favored We conclude attenuate effects provide ameliorate use agriculture.