The Effects of Different Irrigation Programs and Nitrogen Doses on Vegetative and Generative Development Characteristics of Cyclamen persicum Mill.

Ornamental plant growing is carried out in relatively small areas compared to other agricultural production areas, but the use of basic inputs such as water and fertilizer is intensive. Quality in cyclamen and for other similar ornamental plants is related to the amount and quality of the flowers. Irrigation and fertilization are very effective applications of these parameters. This study was conducted in Türkiye to detect the effects of different irrigation programs and nitrogen doses on Cyclamen persicum Mill. in 2023–2024. There were 12 treatments in total. Three different irrigation programs were used. When 20% (I1), 40% (I2), and 60% (I3) of the available water holding capacity (AWHC) in the mixed soil were used, the irrigation water was applied in each irrigation until the available soil water reached the field capacity. There were four nitrogen doses for each irrigation program: N0: 0, N1: 10 kg N da−1, N2: 20 kg N da−1, and N3: 30 kg N da−1. All the parameters were affected negatively by water stress. The 20 kg da−1 nitrogen doses increased the number of flowers. Increasing water stress levels negatively affected the Pn. The zero nitrogen dose treatments (N0) provided the lowest average Pn with 7.53 μmol m−2 s−1. The I1 (frequency irrigation) irrigation program and N3 nitrogen dose can be applied together to obtain the best vegetative growth. As another option to obtain the most generative growth, the I1 (frequency irrigation) irrigation program and the N2 nitrogen dose can be applied together.