Studies on biochemical profiling and bio-fertilizing efficacy of Azolla (Azolla pinnata) and Duckweed (Spirodela polyrhiza)

Abstract

Aquatic plants have adapted to reside in water and extensively get used for human benefits. The nutritive value and bio-fertilizing efficiency of Azolla pinnata (Azolla) and Spirodela polyrhiza (Duckweed) were estimated in the present investigation. Both Azolla and Duckweed were observed to be high in nutritive values and rich in protein content, carotenoids, amino acids, anti-oxidants, starch and fibres. However, Azolla pinnata was observed to have prime nutritional qualities than Spirodela polyrhiza. Significant increase in growth of test plants (Vigna unguiculata) in terms of shoot and root length under the treatment with 10% and 20% of cellular extracts as compared to control condition confirmed their efficacy as bio-fertilizers even in low concentration of 20% extract. This study showed that both Azolla pinnata and Spirodela polyrhiza can be useful for quality nutrient supplement for humans as well as animals and can be applied as efficient environment-friendly and economic bio-fertilizers for plant growth.