Effect of growth regulators on the development of fungi Fusarium spp. In organic agriculture

Abstract

The results of field studies on the inhibitory effect of biological products on phytopathogens Fusarium culmorum and Fusarium sporotrichioides are presented. A comparative analysis of the effect of growth regulators Kresacin and Zircon on the fungi of the genus Fusarium on the cultures of spring wheat, spelled bare grain, oat, filmy and bare grain in vivo was performed. It was revealed that the treatment of spring wheat and oat crops with Krezacin and Zircon helps to improve plant adaptation to the action of stress factors - the pathogen, which leads to the formation of a stable yield. The most effective is the treatment of plants in the flowering phase with Krezacin at a concentration of 15 mg/l. The use of drugs led to a decrease in internal infection in the grains relative to the control. The combined use of plant treatments with growth regulators and a suspension of the fungus Fusarium in the flowering phase of wheat and oats contributes to the low formation of infected grain. The use of the drug Krezacin and fungal suspensions contributes to a greater resistance of plants to the disease, thereby inducing the plant defense mechanisms, improving their immunity to the pathogen in comparison with Zircon.