V Srinivasan, K. S. R. S. B. (2008). Evaluation of indigenous Azospirillum isolates for growth promotion in black pep- per (Piper nigrum L) rooted cuttings. Journal of Spices and Aromatic Crops, 17(2), 128–133. Retrieved from https://www.updatepublishing.com/journal/index.php/josac/article/view/4905