Abstract
In the study, structural features of flowers of the following allergenic plant species were analysed: <i>Betula verrucosa</i>, <i>Secale cereale</i>, <i>Rumex acetosella</i>, <i>Plantago major</i> and <i>Artemisia vulgaris</i>. Pollen production was established by calculating the number of pollen grains produced by the stamen, flower and inflorescence. The dates of occurrence and pollen grains concentration in the air of Lublin were determined. A positive correlation was found between the length of anthers and the number of pollen grains produced. The largest number of pollen grains per anther is produced by Secale cereale (22 360), whereas the smallest one by Plantago major (5 870). The other species produced intermediate numbers of pollen grains in the anther: <i>Betula verrucosa</i> - 11 160, <i>Rumex acetosella</i> - 10 850, <i>Artemisia vulgaris</i> - 9 580. The birch pollen season in Lublin lasts about a month, and pollen of this taxon reaches the highest airborne concentrations among the studied taxa. Low values of pollen concentrations are characteristic for rye and plantain, whereas slightly higher values are recorded for sorrel pollen. Mugwort pollen reaches high concentrations which are noted at the beginning of August.
Highlights
Every year anemophilous plants release to the atmosphere huge amounts of pollen
The number of pollen grains produced per anther was determined and the obtained results were recalculated per flower and per inflorescence, and in the case of the herbaceous plants, per plant
Silver birch (Betula verrucosa Ehrh.) is one of tree species most frequently used for landscape plantings due to its decorative values and low habitat requirements
Summary
Every year anemophilous plants release to the atmosphere huge amounts of pollen. The abundance of pollen is related to the number of pollen grains produced by the stamen and the flower. Levels of pollen production depend on the number of flowers and inflorescences on a plant, as well as the conditions in which it grows. It is important whether a plant occurs solitary or forms clusters with other individuals (Faegri and Iversen , 1978; Molina et al 1996). For pollen to perform its basic function, anemophilous plants must produce it in very large amounts The volume of this production depends primarily on the length of anthers and the size of pollen grains (Dyakowska , 1959; DeVries , 1971; Agnihotri and Singh , 1975; SubbaReddi and Reddi, 1986; Molina et al 1996; We ryszko - Chmielewska and Bartyś , 2000). Birch flowers set in June; an acceleration of this process by two months was obtained in a greenhouse after creating an appropriate temperature and illumination (Suszka , 1979)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
