BIOECOLOGICAL FEATURES AND SEASONAL REPRODUCTION OF AZOLLA CAROLINIANA

Abstract

In the conditions of Kyrgyzstan, Azolla caroliniana reproduces vegetatively. When the daughter leaf ripens, it is easily separated from the mother's body. Individual lateral leaves are spread by the flow of water and begin to grow independently. In March and April, Azolla productivity reaches an average of 65-80 g/m² of biomass per day. At the end of April, May, and June, the biomass of Azolla is 110 g/m² and 185-190 g/m², respectively. Azolla caroliniana Willd.  During the months of July, August and September it reaches maximum reproduction and growth. During this period, Azolla thickets cover the entire surface of the water. In October and November, the leaves of the plant change color from green to brown-red, and the roots begin to shorten. Spores are spread by water currents, birds and human impacts. In winter, the Azolla remaining among the reeds and cattails does not stop growing.