Search results for "biotic and abiotic stress in plants"

The biomass of algae and algal extracts in agricultural production

2018

Fertilizers and plant growth regulators (PGRs) based on seaweeds are commonly known, having been produced and utilized for dozens of years. Algae are rich in carbohydrates, proteins, minerals and chemical compounds that belong mainly to the following groups: polysaccharides, polyphenols, phlorotannins, plant pigments, unsaturated fatty acids, sterols and plant hormones. Agricultural formulations containing algal extracts stimulate the growth and yielding of plants in a very efficient way because of their action at low concentrations. Concentrations of phytohormones depend mainly on the botanical origin of the obtained biomass, the time and place of its collection and the method of extractio…