Study of the effect of associative rhizobacterial strains on the formation of spring durum wheat productivity

Anna A Belyaeva,Gennady L Burygin,Alma G Sundetova,Oksana V Tkachenko,D Solovyev,G Burygin

doi:10.1051/bioconf/20202303012

Abstract

The article considers the influence of strains of associative rhizospheric growth-promoting bacteria on the growth and productivity of spring durum wheat. Seeds before sowing and plants in the tillering phase were inoculated with a suspension of rhizospheric bacteria Azospirillum brasilense of strains Sp245, Sp7, Cd, SR80 and SR88, Ochrobactrum cytisi IPA7.2, Enterobacter cloacae K7. Significant differences were observed in terms of productivity of inoculated wheat plants in comparison with the control. Two strains of bacteria A brasilense SR80, SR88 promoted plant growth. Strains of rhizospheric bacteria A. brasilense Sp245, Sp7, SR80, SR88, and E. cloacae K7 under arid conditions of the Volga’s Left Bank of the Saratov Region contributed to an increase in the photo synthetic surface of leaves and the productivity of photosynthesis, which affected the formation of spring durum wheat productivity. Strains of rhizospheric bacteria A brasilense Sp245 and Sp7 positively affected the grain quality. Agrobiotechnology based on associative microsymbionts can be used to optimize environmentally sound technologies for the production of durum wheat (Triticum durum Desf.) in the organic farming system.

Highlights

Durum wheat (Triticum durum Desf.) is a traditional and one of the most important agricultural crops, which has a large export potential
The maximum leaf area (19.7-19.8 thousand m2/ha) was obtained in the variants treated with strains A. brasilense Sp245, SR88, E. cloacae K7
The leaf area in plants in the variants with inoculation with bacteria strains A .brasilense Sp245, SR88, E. cloacae K7 exceeded the control by 10-11%

Summary

Introduction

Durum wheat (Triticum durum Desf.) is a traditional and one of the most important agricultural crops, which has a large export potential. Modern intensive technologies of crop growing and maintaining soil fertility require the application of a significant amount of chemical components, for example, mineral fertilizers, including nitrogen ones. Sound technologies based on growth-promoting preparation can contribute to crop yield increasing. Morgun et al [5] showed that growth-promoting preparations based on natural and synthetic organic components, applied in small quantities, actively affect the energy and plastic metabolism of plants. The application of preparations of this class leads to a reduction in interfacial periods, an increase in productivity, as well as to an anti-stress effect in relation to biotic and abiotic environmental factors. The advantage of biological products is low cost compared to others on the market [2, 5]

Objectives

Methods

Results

Conclusion