Testing of some high yielding varieties of rice on the growth and attack level of rice stem borer (Lepidoptera, pyralidae) with biostimulant treatment

Abstract In plant cultivation, environmental productivity is an important factor that determines plant growth and development as well as the negative impacts of the environment during the ontogenesis process. To stimulate plant growth, reduce stress-related limitations, and increase yields, biostimulant Egary treatments offer a potential new approach to modify physiological processes. Rhizobacteria Stenotrophomanas maltophilia Sg3 contained in biostimulant Egary produces IAA compounds that can support plant growth and produce 2-Naphthalene-sulfonic acid as an antiviral activity substance that can induce systemic resistance to certain pathogens and higher leaf chlorophyll levels compared to plants without Egary biostimulant treatment which can increase plant production. The results of the study showed that new superior varieties with biostimulant Egary treatment were able to increase growth and yield and were susceptible to stem borer.