International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 2
First page : (638) Last page : (651)
Article doi: http://dx.doi.org/10.18782/2320-7051.2668
Impact of Plant Growth Promoting Bacterial Root Endophytes on Growth and Nutrient Status of Brown Sarson (Brassica rapa L.)
Shahid Ahmad Padder1*, Zahoor A. Bhat2, G. H. Dar1 and F.A. Mohiddin1
1Division of Plant Pathology; 2Division of Soil Science SKUAST-K Srinagar 190025
*Corresponding Author E-mail: aafan.tavkeer@gmail.com
Received: 9.03.2017 | Revised: 20.03.2017 | Accepted: 21.03.2017
ABSTRACT
Root samples of brown sarson (Brassica rapa L.) were collected from 22 villages of three districts of Kashmir valley viz. Anantnag, Srinagar and Baramulla. All the root samples collected from various locations harbored bacteria capable of growth on TSA media. A total of 81 morphologically dissimilar isolates were selected and characterized on the basis of Gram’s staining, cell and colony morphology. The study revealed that Gram negative bacteria formed dominant group. Similarly colonies with circular forms, entire margins and convex elevation were most dominated among all the isolates.Based on overall performance of isolates for each plant growth promoting attributein vitro, 12 isolates were selected for pot house studies.The inoculation of selected isolates revealed that isolate SB51 resulted in highest fall in pH (6.12) in comparison to control (6.85) and highest fall in EC was observed upon inoculation with SB51 (0.11 dSm-1) against control (0.17 dSm-1).The NPK content increased significantly in all the inoculated plants in comparison to uninoculated control (except SB26 for P), with highest N and K content observed in plants inoculated with SB51. The inoculation of bacterial root endophytes significantly increased leaf pigment status of brown sarson in comparison to uninoculated control. In inoculated plants chlorophyll ‘a’, ‘b’, total chlorophyll and carotenoid content ranged from 1.54-2.06, 0.83-1.11, 2.37-3.17 and 0.39-0.55 mg g-1 fresh weight in comparison to 1.48, 0.76, 2.24 and 0.337 mg g-1 fresh weight in uninoculated control.
Key words: Endophytes, brown sarson, nutrients, leaf pigments
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Padder, S.A., Bhat, Z.A., Dar, G.H. and Mohiddin, F.A., Impact of Plant Growth Promoting Bacterial Root Endophytes on Growth and Nutrient Status of Brown Sarson (Brassica rapa L.), Int. J. Pure App. Biosci.5(2): 638-651 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2668
