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 |
This paper presents a pioneer study on the microbial diversity associated with the rhizosphere of Arnebia euchroma, considering the medicinal importance and critically endangered status of this taxon. Rhizospheric soil samples of Arnebia euchroma were collected from two villages namely Nako and Chango in Kinnaur and one i.e. Gue in Lahaul & Spiti district of Himachal Pradesh. Chemical profile of soils revealed pH value in alkaline range of 7.97 to 8.43. The organic carbon content varied from 0.60 to 1.20 %. The available P and N contents were very high and low, respectively. The available K content was high in Nako and Chango and medium in Gue. Zn and Mn contents were found to be low whereas, Cu and Fe contents were comparatively high. A total of 105 microbial isolates were obtained from all the samples. The bacterial and actinomycetes loads were found to be significantly higher at Gue followed by Nako and Chango. High value of Shannon - Wiener index (H’) was found at Gue as compared to Chango and Nako. However, evenness (E1) values were comparatively low at Gue than Chango and Nako, which implies that Gue has a greater diversity of microbial species, which however was not evenly distributed.
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