Algae Extract Increases Seed Production of Soybean Plants and Alters Nitrogen Metabolism

Algae extract biostimulants increase nutrient uptake, stress tolerance, and productivity in several crops. However, there is still a gap the knowledge of mechanisms action algae extracts on nitrogen plant metabolism. This study aimed to evaluate effect commercial Ascophyllum nodosum metabolism nodulating soybean plants their productivity. Two concentrations (0.25% 0.50%) were used, which applied via seeds leaf spray. Seeds treated at sowing, sprayed twice two vegetative phenological stages. Plants harvested R5 stage for biochemical enzyme activity analyses root gene expression analyses. The experiment was carried out second time There an stem biomass, number pods seeds, weight with both concentrations. Biochemical analysis showed increased amino acid content leaves after application. No marked differences found regarding parameters related when data analysed individually. principal component heatmaps supported conclusion that N affected by application, leading higher seed production.