Assessment of the silicon compounds effect on disease resistance and productivity of spring barley with a decrease in pesticide load in the south of Russia

Irina V Slastya,Marina N Stepantsevich,Elena V Khudyakova,S Knyazev,V Kukhar,M Tsoy,O Panfilova,O Loretts

doi:10.1051/e3sconf/202125402023

Abstract

In a small-plot field experiment, the effect of different forms of silicon compounds (tetraethoxysilane (TES) and sodium silicate) and processing methods (seeds and plants) on disease incidence and productivity of spring barley varieties was studied and the effect of diseases on productivity was evaluated. It was found that the use of silicon-containing compounds separately and in a mixture with a reduced consumption rate of fungicide led to a decrease in the infestation of barley with root rot and leaf spots. The lowest degree of disease development was observed when using a fungicide and mixtures of TES and sodium silicate with a reduced consumption rate of fungicide. The maximum yield increases were obtained by combining two types of treatment with silicon - seeds and plants. When processing seeds, the use of sodium silicate was more effective. The relationship between the development of diseases and the productivity of spring barley, primarily grain biomass, is estimated in most cases as strong and medium.

Highlights

In recent years, crop losses from harmful organisms remain high, despite the increase in the use of pesticides in agricultural production in many countries
In the arid conditions of the Lower Volga region and other regions of southern Russia, leaf helminthosporioses are widely distributed on barley crops, such as net, dark brown (pathogen - Bipolaris sorokiniana (Sacc.) and less often – stripe spots, rhynchosporium leaf spot, or Rhynchosporium spot, as well as root rot – Bipolaris sorokiniana (Sacc.)), powdery mildew, dwarf rust
In the second half of the growing season, the plants were affected by root rot and net spot, and in the wet year 2006 – by powdery mildew and rhynchosporium leaf spot

Summary

Introduction

Crop losses from harmful organisms remain high, despite the increase in the use of pesticides in agricultural production in many countries. In this regard, an important role is played by techniques aimed at increasing the resistance of cultivated crops to adverse environmental factors. An important role is played by techniques aimed at increasing the resistance of cultivated crops to adverse environmental factors For this purpose, the use of silicon compounds in grain, legumes, vegetable, fruit and berry, and medicinal crops has been studied for many years. Among the methods used for the application of silicon compounds, the processing of seed material and the spraying of vegetative plants have lower economic costs and, a greater prospect

Methods

Results

Conclusion