Numerous species of soil bacteria which flourish in the rhizosphere of plants, but which may grow in, on, or around plant tissues, stimulate plant growth by a plethora of mechanisms. These bacteria are collectively known as PGPR (plant growth promoting rhizobacteria).Of the microorganisms that parasitize on nematodes and reduce nematode populations by antagonistic behaviour, bacteria hold an im...

to date there is not progress commercially production and large scale application of pgpr in agriculture. one reason for limited commercial use of pgpr is variability, inconsistency and irreproduciblility of results between laboratory, greenhouse, and field trials. these problems with pgpr arises from variation in crops and cultivars, the physical, chemical and biological composition of  soils,...

Bacterial inoculants are known to possess plant growth promoting abilities and have potential as liquid biofertilizer application. Four phytase producing bacterial isolates (phytase activity in the range of 0.076-0.174 U/mL), identified as Advenella species (PB-05, PB-06, and PB-10) and Cellulosimicrobium sp. PB-09, were analyzed for their plant growth promoting activities like siderophore prod...

in the present study, effect of five isolates of trichoderma harzianum on growth parameters of tomato was carried out as cr design with six replications under greenhouse conditions. the concentrations 0.5%, 1% and 1.5% inoculums per pot were used. plant length, shoot and root fresh/dry weight, number of leaves and stem diameter as growth parameters were measured. the results showed that isolate...

in order to study the effects of growth promoting bacteria (gpr) and mycorrhizal fungi on seedling emergence, establishment and growth of two ecotypes alfalfa under salinity stress condition, an experiment was conducted in greenhouse of college of agriculture and natural resources, university of tehran in summer 2011. the experiment was arranged as a factorial with three replications. experimen...

Use of plant growth promoting rhizobacteria (PGPR) for the benefits of agriculture is gaining worldwide importance and acceptance and appears to be the trend for the future. PGPR are bioresources which may be viewed as a novel and potential tool for providing substantial benefits to the agriculture. These beneficial, free-living bacteria enhance emergence, colonize roots, stimulate growth and e...