Screening for Black Point Disease in Spring Bread Wheat Populations
Abstract
The research was conducted in Yozgat (Yerköy) to determine the incidence and severity of black point disease in 20 segregating populations during the 2023-2024 growing season. The experiment was conducted in a randomized block design with four replications. The segregating populations used as material were at the F4 level and were of the spring seasonal type. Sowing was done as freezing sowing because the genotypes are of the spring seasonal type. The incidence and severity of black point disease in seeds from segregating populations have been determined. Statistically significant differences were determined among the populations in terms of black point incidence. One segregating population was classified as resistant, eight as hardly susceptible, 10 as moderately susceptible, and one as highly susceptible. No population classified as immune or highly resistant was detected. Segregating populations showed black point incidence values ranging from 3.0 (Ziyabey 98 × Bayram) to 32.3% (Kayra × Koç 2015). The disease severity of segregating populations showed scale values ranging from 1.3 (Candaş × Albachiara and Candaş × Albachiara) to 4.0 (Koç 2015 × Kayra). Black point disease should also be used as a criterion in crossbreeding and selection carried out in plant breeding programs. In this way, the damage of the disease can be kept to a minimum in environmental conditions where black point epidemics occur intensely.
Keywords
Cross breeding, Incidence, Segregating population, Severity, Triticum aestivum L.
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