Distribution of Black Point Infection on Wheat in Relation to Precipitation and Topographic Features Using Geographic Information Systems

Türkçe

Environmental factors and geographical features are of great importance in the disease incidence and severity of black point. Geographic Information System (GIS), Expert System and Artificial Neural Network are among the techniques recently used to guide producers in preventing wheat diseases and harmful insects. In this study, it was aimed to determine the effect of precipitation and topographic features such as aspect, slope, digital elevation model (DEM), lithology classes and soil groups on the black point incidence formation in wheat production areas in Yerköy (Yozgat) and Çiçekdağı (Kırşehir) districts with the help of GIS. It was defined that there were statistically significant differences between aspect, soil groups, lithology, precipitation and black point. In contrast, no significant difference was found in DEM and slope degree. A statistically significant difference was found between lithosol type soils and black point among soil groups, and an increase in the incidence of infection occurred in these types of soils. In terms of precipitation amount, 201-300 mm and 301-400 mm precipitation ranges had a statistically significant difference from the 401-500 mm precipitation range. Regarding the black point incidence, it was found that the north, east, and west directions from the major directions differed statistically significantly from the south directions. More attention should be paid to cultivation techniques against black point in wheat cultivation, especially in areas with such geographical features.