Chernikova O. Ecology-biological indicators of Spiraea L. genera plant resistance in the technogenic conditions of Steppe Pridneprov'e (within Dnipropetrovsk).

The objects are plants of Spiraea L. genera plants from different nature-climatic and floristic areas. The aim is to study the biology-ecologycal features of Spiraea L. genera plants, underlying adaptation and stability of plants to conditions of the anthropogenous changed environment. The methods are eco-biochemical, statistical. The features of region hydrothermal conditions and industrial emission influence on ecology-biological indicators of Spiraea L. genera plants have been investigated. The meadowsweet water regimen as one of characteristics of their drought resistance, protective action of organic substances (soluble albumens, carbohydrates) in meadowsweet vegetative organs as indicators of plant drought and frost resistance have been studied. Aspects of meadowsweet ecological plasticity (plant breath, oxidoreductase activity, intensity of photosynthesis, pigmentary complex state) and a role of these parameters in plant adaptation to new conditions of existence have been considered. By means of integral estimation of meadowsweet decorative features practical recommendations for meadowsweet use in planting greenery on different purpose territories have been given. Application spheres are gardening and training courses.