Mrs. H. N. ShelatMeghaben Rajeshbhai Patel2020-07-012020-07-012018http://krishikosh.egranth.ac.in/handle/1/5810148322Present investigation was carried out during 2016 to 2017 with an aim to develop Azolla based PGPB biogranules and ascertain their shelf life followed by efficacy in okra cv Gujarat Okra 5 (Abelmoschus esculentus (L.) Moench). Mass production of Azolla was studied in various growth media viz.cow dung, H40, IRRI, RP, SSP etc. with / without soil and it was observed that addition of soil in various nutrient media was beneficial registering higher biomass. In comparison to all media, cow dung with soil was found better for long term higher yield of Azolla.en-USnullThesis