DETERMINATION OF RESISTANCE OF WINTER WHEAT ACCESSIONS TO COMMON BUNT (TILLETIA CARIES (DC.). TUL)

Abstract

One among the most common and dangerous diseases of wheat is the common bunt, what is caused by the fungi Tilletia caries (DC.). The quality of wheat infected with common bunt is drastically reduced, and it becomes unsuitable for use as feed. The most effective method of combating smut is considered to be genetic protection of plants, which is achieved by the introduction of new resistant samples to common bunt wheat. The purpose of the study was to determine resistance of wheat to the pathogen Tilletia caries (D.C.) Tul. & C. Tul. To achieve the goal, the study used several methods. These are: Wheat inoculation with Tilletia caries (D.C.) Tul. & C. Tul used the method of A.I. Borggard-Anpilogov, the plant biomass index (NDVI - Normalized Difference Vegetative Index) was measured using a Green Seeker device (Trimble Navigation Limited, USA). When evaluating infected samples with the pathogen Tilletia caries (D.C.) Tul. & C. Tul, the Koishibaev scale was used. For the study, 10 samples of Romanian wheat were taken. Seven Romanian cultivars proved to be highly resistant to disease. These are: F08245G1, PARTNER, F08347G8, F06393GP10, RETEZAT and F07270G2. As a result of calculating the biomass index (NDVI) of 5 genotypes, it turned out to be high. As a result of structural analysis, samples PARTENER, F08245G1 and F08347G8 showed high resistance in four identical characteristics.