Influence of foliar spray of cyanobacterial indolic compounds on the growth of hibiscus esculentus l.

Cyanobacteria are prokaryotic, inexpensive to maintain with high growth rates and produce various biologically active substances like proteins, vitamins, carbohydrates, amino acids, polysaccharides and plant growth regulators. Thus they have the unique potential to contribute to productivity in a variety of agricultural and ecological situations. Indole acetic acid (IAA) is a natural auxin which is also synthesized in many species of non seeded plants, many bacteria, fungi and algae. The amino acid tryptophan is commonly regarded as the precursor for the biosynthesis of auxin in plants. In this study, for the first time an attempt was made to confirm the presence of IAA in the extract of Oscillatoria annae using instrumental methods of analysis and a field experiment was also conducted to analyze the efficacy of the extract on the growth of Hibiscus esculentus.