Hydrogels can absorb huge amount of water and so are able to decrease the drought stress in plants. They are used in horticulture and agriculture for years. It is possible that they may be applied also on the grass near - road areas. Because of water deficient and high salinity growth of plants in these conditions is however hard. Meanwhile, too high concentration of ions in soil can decrease efficacy of hydrogel, since it can absorb water and cations as well. Nevertheless there is still too less studies on such problem. From this point of view it seems that the complex assessment of hydrogels effect on urban lawn grass is needed. The aim of the study was therefore the evaluation of grasses condition after their cultivation under salt stress with and without hydrogels amendment. Experience was conducted for four months in the controlled green house conditions. The efficacy of hydrogels amendment was measured by the grass reactions (turfs height, fresh matter content and level of membranes injury) on three levels of salinity. The results allowed concluding that, concentration of the road deicing salt was the main factor, which affected condition of all tested species. This reaction was independent on the presence of hydrogel. Nevertheless under low and medium saline conditions watersorbent weakened significantly influence of salt stress on the grass.
Praca polegała na ocenie fitotoksyczności i genotoksyczności gleb terenów rolniczych położonych w zasięgu oddziaływania emisji z rafinerii ropy naftowej w Płocku. Badane gleby to gleby płowe i brunatne wyługowane. Wykorzystano test Phytotox i test wschodów i wzrostu siewek oraz do oceny stopnia nasilenia czynników genotoksycznych test Vicia faba RTA (root tip assay). Próbki gleb zebrane w odległości 1, 3, 6, 12 i 18 km na płn.-wschodzie od rafinerii wykazały fitotoksyczność. Obecność czynników genotoksycznych stwierdzono dopiero w odległości 6 i więcej km. Ich natężenie, najwyższe przy 6 km, znacząco spadało przy 12 km, utrzymując się na tym samym poziomie w odległości 18 km od rafinerii.