PHENOLOGICAL ANALYSIS OF GRASS POLLINATION IN RYAZAN’
Grass pollen (Poaceae) is one of the main causes of allergic diseases worldwide. The pollen of all grass species belongs to the same morphological type and is diagnosed with aerobiological monitoring only up to the family level. The allergenicity of grass pollen is poorly studied and can vary from moderate to very high (pollenlibrary.com), the pollination periods of different species often overlap. The analysis of grass pollination curve in Ryazan in 2020 was carried out with phenological index, which is a combination of data on phenology, pollen production, and species abundance (Ghitarrini et al., 2017). The total phenological index is in a good agreement with the dynamics of grass pollen concentration in the atmosphere. The sequence of grass pollination was determined. The greatest contribution to the formation of aerobiological spectrum is made by Festuca pratensis , Dactylis glomerata , and Phleum pratense .