Assessment of carrot growth performance with inoculation of AsT-PGPR under arsenic infested zone

G-Journal of Environmental Science and Technology

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Title Assessment of carrot growth performance with inoculation of AsT-PGPR under arsenic infested zone
Creator Paul, Shyni
Singh, Vaishali
Chauhan, Prabhat K.
Srivastava, Abhishek K.
Upadhyay, Sudhir K.
Subject Arsenic tolerant PGPR (AsT-PGPR)
PGP traits
Plant growth performance
Description In the present study, the maximum rhizobacterial population was observed in Nutrient Agar (NA) (average; Cfu=135×106) followed by King’s-B (average; Cfu=57×106), Soil extract agar (SEA) (average; Cfu=11×106), and Trypticase soy agar (TSA) (average; Cfu=9×106). Screening of arsenic tolerant rhizobacterial isolate revealed that about 1% of the bacterial isolate was from Nutrient Agar and King’s-B survived at 20ppb arsenic concentration, while 0.8% and 0.7% survived from TSA and SEA media respectively. 50ppb arsenic tolerant rhizobacteria were screened for plant growth-promoting activity such as IAA, Phosphate solubilization, Siderophore production, ACC deaminase activity. Maximum IAA activity was observed in rhizobacterial isolates, isolated from all different media. P- solubilizer, Siderophore producer, ACC deaminase, proline, and TSS activities were observed in the isolates of NA media followed by King’s-B media. 50ppb tolerate best suitable PGP traits producing isolates were inoculated to observe carrot plant growth in the pot experiment, Interesting and significant (p<0.05) result were observed in King’s-B media producer isolates; (Pseudomonas) induces plant length, chlorophyll-a and chlorophyll-b content of the plant after 60 days followed by 30 days.
Publisher Grace and Peace welfare Society
Date 2020-06-30
Type info:eu-repo/semantics/article
Research article
Format application/pdf
Source G-Journal of Environmental Science and Technology; Vol. 7 No. 6 (2020): June; 78-84
Language eng
Rights Copyright (c) 2020 G-Journal of Environmental Science and Technology

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