Transcription of 2. Floating aquatic macrophytes Azolla
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2. Floating aquatic macrophytes Azolla
172. Floating aquatic macrophytes AzollaFloating aquatic macrophytes are defined as plants that float on the water surface, usually with submerged roots. Floating species are generally not dependent on soil or water spp. are heterosporous free- Floating freshwater ferns that live symbiotically with Anabaena azollae, a nitrogen-fixing blue-green algae. These plants have been of particular interest to botanists and Asian agronomists because of their association with blue-green algae and their rapid growth in nitrogen deficient habitats (Islam and Haque, 1986).
Floating aquatic macrophytes – Azolla 19 ~30 ºC. According to Sherief and James (1994), the favourable water temperature for rapid multiplication of Azolla is generally between 18 and 26 ºC. The optimum relative humidity for Azolla growth is between 85-90 percent.Azolla
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