Impact of protein hydrolysate biostimulants on growth of barley and wheat and their interaction with symbionts and pathogens

We compared the biostimulant effect of a novel chicken feather hydrolysate (FH) and a reference protein hydrolysate (RH) on barley and wheat in a pot experiment. Their interactions with arbuscular mycorrhizal fungi (AMF) and phosphorus (P) supply were also addressed. All experimental factors influenced barley growth. Shoot height and biomass of barley were increased by FH and reduced by RH. AMF decreased barley biomass at high P-supply. In...