Crop Response to Leaf and Seed Applications of the Biostimulant ComCat® under Stress Conditions

Although clear evidence for benefits in crop production is partly missing, several natural compounds and microorganisms have been introduced to the market as biostimulants. They are supposed enhance nutrient efficiency availability rhizosphere, reduce abiotic stress, improve quality parameters. Biostimulants often derive from compounds, such microorganisms, algae, plant extracts. In this study, commercial extract-based biostimulant ComCat® was tested two field experiments with maize communities of Banikoara Matéri Northern Benin six pot (four winter barley) at University Hohenheim Germany. Maize grown under deficiency, drought, weed competition, barley stressed by herbicide Luximo (cinmethylin). applied half, full, double recommended rate (50, 100, 200 g ha−1) on unstressed control plants leaf or seed treatment. The were conducted randomized complete block designs four replications. above-ground biomass yield data one experiment collected. did not promote plants. When exposed resulted only out eight higher compared treatment without application. There a reduced phytotoxic effect cinmethylin after ComCat®. Crop response independent application rate. Basic studies needed investigate crops biostimulants their mechanisms action before they should be used practical farming.