Development and use of alternative technology based on biological and boron fertilizer to alleviate cold stress in agriculture

ABSTRACT DEVELOPMENT AND USE OF ALTERNATIVE TECHNOLOGY BASED ON BIOLOGICAL AND BORON FERTILIZER TO ALLEVIATE COLD STRESS IN AGRICULTURE Turkey's climatic conditions have shown higher temperature variations in recent years. Low temperature is one of the most important factors limiting crop production. A significant annual loss in crop yield and quality have been reported in each region. Recently, some organic and inorganic mineral resources are being used as frost resistance mechanisms to help plants overcome frost stress. In this study the effects of Bio-B formulation developed such as reduction of low temperature and frost damage, antifreeze protein, ice nucleation activity, antioxidant activity, hormone and amino due to acid balance were investigated on wheat, by evaluating biochemical variations revealed in the preliminary plant and soil analyzes in Erzurum in Turkey. In addition to biochemical tests of different microorganisms used in bio-B formulations, the ability to produce antifreeze proteins at low temperatures and their b were tested. Azosprillum brasilence bacterium was determined as the most effective organism. Biochemical analyzes of Azosprillium brasilense and combined B formulations were tested for pathogens such as Pseudomonas syringae. As a result of the test, the most suitable boron level was 0.5 percent and the most suitable Azosprillium brasilense content was 106-107 CFU / ml. The determined organism and B formulations were applied in an area in Erzurum for wheat plant. According to results, wheat yield increased by 12.88 percent compared to control with Bio-B application from soil. In other applications, wheat yield was increased by 4.68 percent from foliar increased by 8 percent soil + foliar application. With the soil application the highest yield and the highest amino acid and organic acid and the highest soil B content are obtained. The lowest frost damage rate was obtained by foliar Bio-B application. According to the control (no Bio-B fertilizer application), the frost damage rate decreased in case of Bio-B application from soil as 17.99 percent; as 23.15 percent with foliar application and as 21.54 percent with soil + foliar application.