Abstract Biologically active substances (BASs), including plant phytohormones-regulators of growth and development, are becoming increasingly important in agriculture activities. Their use allows to better realize the genetic potential crops, increase resistance plants stress factors biotic abiotic nature, as a result yields improve quality. In this research, it was aimed at researching effect ...

Purpose. To analyze the productive-biological and biochemical parameters of sturgeon larvae fry under conditions introduction synthetic (Levamisole) organic (Chitosan) immunostimulants into their diet. evaluate effect supplements on stability homeostatic processes based analysis enzyme activity. Methodology. The study was carried out juvenile hybrid besters (♀ Huso huso х ♂ Acipenser ruthenus) ...

Abstract Diatoms, a unique group of algae colonising wide range aquatic habitats and contributing to human well-being in many ways. We list summarise these services using the classification Millennium Ecosystem Assessment (MEA), i.e. supporting, regulating, provisioning cultural services. The most relevant supporting are photosynthesis primary production, as well sediment formation. They also p...