Effect of trace elements and PGPB azotobacter chroococcum and pseudomonas fluorescens application on grape resistance to the wintering

Abstract

Vine resistance to the wintering is one of the main conditions of high productivity and longevity of vineyards. Realization of the genetically based potential of resistance may be enhanced by improving plant nutrient regime. Obtained results have shown that foliar fertilization of plants in the growing season with micronutrients adding metabolites and suspensions of bacteria Azotobacter chroococcum and Pseudomonas fluorescens is causing significant changes in metabolic processes during the growing season and period of dormancy, which contribute to increase of vine resistance to wintering.