Jornal de Patologia Vegetal e Microbiologia

Abstrato

Comparative Study of Different Carriers Inoculated with Nodule Forming and Free Living Plant Growth Promoting Bacteria Suitable for Sustainable Agriculture

Naveen Kumar Arora, Saskhi Tiwari and Ratan Singh

Rhizobium and pseudomonas are bacteria that’s are able to increase plant growth and provide nutrients to them in any condition even in stress condition and also have different plant growth characteristics such solubilized the minerals, fix the nitrogen and also chelate the inorganic compound for example iron and make it utilizable to plants thus making it beneficial as microbial bio fertilizer and known it plant growth promoting rhizobacteria. The aim of this study was to determine potential five different carrier material for survival of PGPR (Rhizobium and pseudomonas strain) isolated from Trigonella foenum Graecum at room temperature for 8 weeks. Samples from the carrier materials (Sterilized and Non- sterilized) were taken every week and tested for the survivability and sustainability of the two different PGPR in it by determining viable cell count (CFUg-1). The result showed that after eight weeks of storage treatment of carrier Coriander husk, saw dust and Begasse stored at room temperature (25-28°C) was able to sustain the highest viable cell number of Co inoculation of Rhizobia and Pseudomonas followed by individual. These two carrier also had acceptable changes in pH value and moisture content followed by wood ashes and sand.