Bozdogan, E.2024-09-182024-09-1820151462-0316https://doi.org/10.1080/14620316.2015.11668735https://hdl.handle.net/20.500.12483/13388Treated wastewater (TW) is now accepted as an alternative source of irrigation water that can be used throughout the year, particularly in arid areas suffering from water shortages. The objective of this study, conducted at Karaisali, Adana, Turkey in a Mediterranean climatic zone between April 2008 and December 2009, was to determine the efficacy of TW for irrigating Rosmarinus officinalis L. (rosemary) plants to be used for decorative and medicinal-aromatic purposes. The trial was arranged in a random block design with three replications. Fresh water (FW) or TW were used for irrigation. Data on plant growth were collected each month. The data were statistically analysed using Student's t-test. It was found that plant growth was more rapid for both type of irrigation in 2008 than in 2009 and, in 2009, R. officinalis plants that had been irrigated with TW grew more slowly for some parameters than those irrigated with FW. No negative effects on plant growth were identified during the study. At the end of the study, many of the measurements of growth were high in plants irrigated with TW. Average measurements of growth in November 2009, based on irrigation water type, were: plant height 92.23 cm (FW) or 99.76 cm (TW); plant diameter 53.29 cm (FW) or 107.88 cm (TW); numbers of shoots 58.35 (FW) or 134.23 (TW); length of shoots 62.26 cm (FW) or 71.50 cm (TW); and diameter of shoots 4.15 mm (FW) or 5.18 mm (TW). As a result, TW may be accepted as an alternative source of irrigation water in arid areas planted with rosemary, which would conserve FW sources.eninfo:eu-repo/semantics/closedAccessGreywaterClimateYieldArticle90671171410.1080/14620316.2015.116687352-s2.0-84946568598Q1WOS:000366407700017Q3