Designing a methodological concept for the diagnosis of early development of the main wheat diseases pathogens

Oksana Kremneva,Igor Sereda,Roman Danilov,Olga Tutubalina,Kurilov Artem

doi:10.1051/bioconf/20202100002

Abstract

The studies presented in the article were carried out in 2018-2019 on the experimental field of the All-Russian Research Institute of Biological Plant Protection. The aim of the research was to assess the feasibility of diagnosing the early development of major diseases pathogens based on the results of ground-based spectrometry and the use of phytomonitoring technology, taking into account the genotypes of different winter wheat varieties. There were three options of the experimental plots for the research: the 1st – protected against diseases by fungicides, the 2nd – with an artificial infectious background, the 3rd – with the natural development of diseases. According to the results of data analysis, the most significant changes in the spectral characteristics of the studied plant backgrounds were noted at the time of the first signs of disease in the form of a decrease in the spectral brightness coefficient in the near infrared range. Using special tools in the experimental plots, the following pathogens were identified before the appearing of disease symptoms: Blumeria graminis (DC.) Speer f. sp. tritici Marchal , Puccinia striiformis West., Pyrenophora tritici-repentis Died., Puccinia triticina Erikss. Data on the diseases development, plant infestation by pathogens are compared with spectrometric measurements.

Highlights

The studies presented in the article were carried out in 20182019 on the experimental field of the All-Russian Research Institute of Biological Plant Protection
There are some known results of the studies on the development of remote methods for the detection of rust diseases in winter wheat crops based on changes in the spectral characteristics of plant objects [17]
The first visible changes in the spectral characteristics of the studied plant backgrounds, which appeared in the form of a decrease in the spectral brightness coefficient (SBC) on infected plots of all varieties, were noted by analyzing data obtained from April 30 to May

Summary

Introduction

There are some known results of the studies on the development of remote methods for the detection of rust diseases in winter wheat crops based on changes in the spectral characteristics of plant objects [17]. To develop brown and yellow rusts in the experimental plot, the method of artificial infection of winter wheat plants with spores of these phytopathogens was used [19,20].

Objectives

Results

Conclusion