
Phycology, Journal Year: 2025, Volume and Issue: 5(2), P. 22 - 22
Published: June 3, 2025
Macroalgal extracts are widely recognised as biostimulants that enhance crop productivity and plant growth under both optimal stressful conditions. They offer a sustainable approach to mitigating the adverse effects of abiotic stress on development. This study investigates efficacy macroalgal-based fertilisers in enhancing tomato (Solanum lycopersicum L.) growth, yield, fruit quality, alternatives chemical fertilisers. Different seaweed species (Sargassum muticum, Ulva ohnoi, Furcellaria lumbricalis, Ascophyllum nodosum, commercial A. nodosum extract) were evaluated foliar treatments. The results showed while leaf fresh weight chlorophyll content not significantly affected, morphology biochemical composition exhibited notable variations. Sargassum muticum-treated fruits displayed highest °Brix (6.57), indicating superior sugar accumulation, ohnoi maintained near-neutral pH levels (avg. 3.94), suggesting balanced acidity. induced proline concentrations (peak: 63.77 µmol/g), but also caused extreme acidity (pH 1.39–2.58). lumbricalis enhanced size (axial length up 41.4 mm), reduced sharply (1.69–2.13). product underperformed regard flavour complexity. integrative analysis revealed species-specific profiles: yielded sweet, mildly acidic fruits; produced intensely aromatic, tomatoes; resulted bland flavours. These findings underscore importance algal extraction methods tailoring biofertilisers for target qualities. advocates use macroalgal agriculture, highlights need optimised formulations balance taste, adaptation.
Language: Английский