You have full access to this open access article. For statistical evaluation, use was made of aerobiological and meteorological data from the last 10 years — Based on this data, agroclimatic indicators, i. The beginning of the Artemisia pollen season in the studied time period, on average, took place on 23 June.
Its length usually varied between 26 and 45 days, and maximum daily concentrations occurred between 31 July and 18 August. On the other hand, SPI is connected with thermal variables, i. Based on the correlation analysis and the chosen variables, regression models for the beginning date of Artemisia pollen season and SPI were prepared, which were then verified by using leave-one-out cross-validation. A better fit between modelled and actual values was found for the analysis concerning the season start date than for the SPI.
The Artemisia L. Of the 57 species of Artemisia L. They preferably grow on ruderal and disturbed soils, in urban and suburban areas, at industrial and building sites, in rural areas or countryside, around farms and along roads. They are less abundant in biologically undisturbed and stable environments Spieksma and von Wahl Vegetative growth of A.
The germination of Artemisia seeds is influenced by temperature. Maximum growth takes place in the summer months.
The first flowers appear on the plant after 4 months from the start of growth and mature in late summer into early autumn. The required photoperiod for flowering was found to be 4—16 h for 4 weeks Henderson and Weller ; Barney and DiTommaso This value is twice as high in urban populations Sydbom et al. An increased sensitivity of respiratory tracts to environmental factors, including inhaled allergens Kinney et al. Therefore, pollinosis is an important factor in the quality of life of an urban population Bonofiglio et al.
