Intercommunication between photosynthesis' intensity, the main environmental factors and nutrition conditions in Nepeta cataria var. citriodora Beck. and Agastache foeniculum Pursh.
Nikitsky Botanical Garden – the National Scientific Center
Nikita, Yalta, Crimea 98648, Ukraine
As the result of the experiments the influence of environmental factors and conditions of root nutrition on the photosynthesis` intensity has been determined. Light curves of photosynthesis` intensity in the plants of N. cataria and A. foeniculum come onto the saturation plato under the lightning 0,5 kW/m2. Optimum of photosynthesis is in the borders of 28–32°Ń. Decreasing of photosynthesis` intensity takes place even under the small changes of soil`s water potential and falling of air humidity from 0,8 to 0,4%. Maximum meaning of photosynthesis` intensity has been observed under the carrying into the soil organic and mineral fertilizations simultaneously. Independently from fertilizations` carrying manner plants of A. foeniculum has been characterized by greater photosynthesis` intensity.
Keywords: Nepeta cataria var. citriodora Beck., Agastache foeniculum Pursh., photosynthesis` intensity, phytomonitoring