DefinePK

Abstract

One of the modern devices for monitoring photosynthesis is MultispeQ that is the open-source scientific instruments designed to collect high-quality data for in situ plant studies. Soybean (Glycine max (L.) Merr) is an important oilseed crop in Kazakhstan, but in recent years its production affected by widespread soil-borne diseases especially root rot by Fusarium spp in Western Kazakhstan. Monitoring plant physiological responses to biotic vectors are unique to evaluate the effects of different vectors on host processes involved in plant growth and yield. The aim of the study was comparison study of biotic factors (Fusarium infection and genotype). Soybean physiology was studied with the MultispeQ device on photosyng.org platform to test 12 different genotypes. R software was used to identify the most important physiological parameters in selecting the most adaptive varieties of soybean. Results showed that soil infection of F. equiseti significantly impacted and increased to linear electron flow (LEF) chlorophyl fraction indexes on Samer-1, Samer-2, Toury, Anastasya, Samer-3, Samer- 5, Belor, Swapa and Cheremosh soybean genotypes with respect to non-inoculated genotypes. The general distribution of LEF chlorophyl fraction indexes before inoculation decreased as compared to ones after experiment. Our results suggested that soil infection affected LEF chlorophyll fraction.