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    Determination of Polyethylene Glycol Doses Affecting Germination Percentage, Germination Index and Seedling length of Different Basil (Ocimum basilicum L.) Genotypes
    (Duzce University, 2024) Hacan, Merve; Mokhtarzadeh, Sam; Kökten, Kağan
    Among the developmental stages of the basil plant, germination and seedling development periods are the most sensitive periods to stress, so increasing the resistance of this plant to germination, emergence and seedling development stages in drought stress is known as an important element. In this study, the drought resistance of different basil lines in Turkey was investigated, and characteristics such as germination percentage, germination index and seedling length of seeds under drought stress were examined. The experiment was conducted in Bingöl University, Faculty of Agriculture, Department of Field Crops Laboratories, as a factorial study, in three repetitions according to the completely randomized design. In the study, five different populations (Elâzığ, Kahramanmaraş, Hatay, Denizli and Istanbul) and five different PEG 6000 concentrations (0%-2.5%-5.0%-7.5% and 100%) were used, and seed germination and Its effects on seedling growth were investigated. According to the data obtained, it was determined that Ocimum basilicum L. genotypes responded differently to abiotic stress conditions. Under drought stress, Ocimum basilicum L seeds gave better results in the Hatay variety, while the lowest germination percentage and germination index were observed in the Elazığ variety. In addition, in terms of seedling length under drought stress, the shortest seedling length was observed in the Denizli population, and the highest seedling length was observed in the Elazığ population.