Journal of Tekirdag Agricultural Faculty, cilt.21, sa.4, ss.1017-1032, 2024 (ESCI)
It is predicted that the majority of the world's population will live in cities in 2050. Rapid population growth in cities brings environmental problems. All these problems change the climate negatively. Changes and decreases in the precipitation regime due to climate change cause drought problems. Considering the world average, it is seen that 70% of usable water is consumed for irrigation purposes. Türkiye's average is 72%. As the development level of countries increases, water consumption for irrigation purposes decreases. It is known that a large amount of water consumed for irrigation purposes is used in green areas in urban landscaping works. For this reason, developed countries have started to apply techniques such as limited irrigation and rational use of water in their parks and gardens. They had to tend to use the less water consumed by plants in larger areas, reduce the usage areas of plants that consume more water, and use plants in planting areas by zoning them according to their water needs. The highest water consumption is from grass plants and seasonal flowers, which are indispensable for green areas in cities. Although the highest water consumption is in green areas where ornamental plants are used in urban areas, very few academic studies have been conducted on water shortage in ornamental plants. The purpose of this research; The aim of the study is to observe the change in the development parameters of the Antirrhinum majus plant, the most commonly used seasonal flower that causes excessive water consumption in green areas in cities, by subjecting it to restricted irrigation. In this context; Four different irrigation rates were applied: 25%, 50%, 75% and 100%. 18 development parameters were examined to determine the effect of different irrigation applications. As a result of the research; It was observed that in Antirrhinum majus plant, 17 out of 18 growth parameters showed more development in 75% water application than in 100% water application. These results show that the 75% (25% reduction) application is more advantageous. When using the Antirrhinum majus plant in urban areas, it is recommended to reduce water by 25%. In this case, significant water savings will be achieved in the urban landscape. It is recommended that Antirrhinum majus plants, whose development is not affected by water shortages, are frequently used in urban landscapes.