Salicylic acid and oxalic acid stimulates wheat yield components grown under disease conditions

The Republic of Kazakhstan is a major wheat-producing and wheat-exporting country. Wheat is a grain which the most important source of food on earth. It contains 75-80% carbohydrates, 9-18% protein, fiber, many vitamins (especially B vitamins), calcium, iron, and many macro-and micro-nutrients. Fungal leaf diseases, such as leaf blotch caused by Septoria tritici and rust diseases caused by Puccinia graminis, Puccinia striiformis and Puccinia triticina are also a problem for spring wheat production. Despite the dry climate, the cultivation of susceptible varieties results in epidemics of leaf rust in one year out of four on average, affecting more than 1 million hectares, with estimated losses of up to 25-30 percent of yields. Salicylic acid and oxalic acids have the effects of promoting plant growth. We test whether they can positively impact wheat yield under disease conditions. Foliar seed application of Salicylic acid and oxalic acid on wheat cultivar leads to overall better performance of the plants and increases the yield significantly. Effect on wheat yield components of two substances (SA, and OA) in both ways such as seed treatment and foliar spray, believed to have growth-stimulating properties in plants. 0.2 mM OA and 0,5 mM SA+ 0,1 mM OA samples represented a good result in both seed treatment and foliar spray in all yield characteristics of Aray cultivars compaire to control. The results of this study will be useful to control fungal diseases of wheat.