Lithothamnion sp. as biostimulant in plant cultivation1

Abstract

One of the various seaweed species with biostimulating properties is Lithothamnion sp., a calcareous seaweed recognized for its nutritional attributes. This review article aimed to gather information on Lithothamnion sp. and its applications in agricultural cultivation, focusing on identifying and analyzing its biostimulant effects. The practical use of this biostimulant in farming has been confirmed by studies highlighting its efficiency, which varies according to the source material (deposit and particle fraction), application methodology (dosage, methods and frequency) and specific crop (genotype and development stages). Lithothamnion sp. is notable for promoting vegetative growth and has established itself as an invaluable biostimulant in producing seedlings of various species. Its application, either via soil or by foliar methods, has led to improvements in the yield and quality of vegetables, fruits, oilseed crops, grains and forage plants. Although the underlying mechanisms need further investigation, the results suggest that Lithothamnion sp. contributes to amplifying photosynthesis, water-use efficiency and phytoalexin production.