Akademik Veri Yönetim Sistemi
JOURNAL OF CROP HEALTH, cilt.77, ss.1-11, 2025 (SCI-Expanded, Scopus)
Wheat is one of the major foods of humans and is one of the cereals with the largest cultivation area in the world due to its high adaptability. Alternaria alternata is one of the fungi causing black point disease. Its negative effects on seed health and quality, induce considerable yield losses. The first focus of the study was on determining the reactions of 15 winter wheat cultivars, widely cultivated under natural epidemic conditions, toblack points under Yozgat conditions. In the first growing season of this study aimed to determine the response of bread wheat cultivars to black point disease under natural epidemic conditions and to identify the dominant fungal species. The main objective of this study in the second growing season was to investigate the effects of A. alternata inoculation and inoculum doses on black point incidence in the milk and dough stages of bread wheat. Under natural epidemic conditions, significant differences in black point incidence were found among cultivars, with an average black point incidence of 3.48%, and only one cultivar was detected as immune. The analysis of variance with data from inoculation stages, cultivars, inoculum density doses, and interactions across factors was statistically significant. The largest source of variation was due to the cultivar (65.9%), followed by inoculation stage (7.2%), inoculum density dose (8.9%), and Cultivar × Inoculation stage interaction (5.7%). The average black point incidence at milk stage was 15.75%, and 9.89% at dough stage. An increase in the number of grains infected with black point increased positively based on the density of the inoculum at both stages of inoculation. Although biotic and abiotic factors affected the incidence of black point, this study emphasize the importance of that genetic resistance as the most effective option to strive against black point.