National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The aim of the study was to assess Pseudomonas sp. for their plant growth and antagonistic activity against most probable fungal pathogens associated with apple and pear plants viz., Dematophora sp., Fusarium sp., Pythium sp. and Sclerotium sp. These isolates were phenotypically and biochemically characterized from the rhizosphere of normal and replant sites of apple and pear from different locations of two districts of H.P i.e. Chamba and Mandi. The isolates of Pseudomonas sp. were screened out for the direct and indirect plant growth promoting activities viz., siderophores, phosphate solubilizing, HCN, ammonia, lytic enzymes and plant growth regulators viz., auxins, cytokinins and gibberellins so as to screen potential strains to be further developed and used as inoculants for management of replant problem of apple and pear. Out of twenty nine Pseudomonas sp. isolates, seven isolates were selected on the basis of overall best PGPR activities including antifungal activity for the extraction and isolation of antifungal metabolite DAPG (2,4-diacetylphloroglucinol) from them.
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