Vol. 7, Issue 2 (2019)
Exploiting Phyllosphere azotobacter and Azospirillum for increasing production of Arjun leaves for silk worm under climatic conditions of Chhattisgarh
Author(s): Menaka M, SB Gupta, Tapas Chowdhury and AK Chaubey
Abstract: In regions like Chhattisgarh which is exposed to extreme dry and hot climate during summer, the significance of foliar biofertilizers over carrier and liquid based biofertilizers is much higher because of very high use efficiency of biologically fixed amount of nitrogen (BFAN). Foliar Azotobacter and Azospirillum spraying can increase yields from 10% to 25% similar to that of urea spray. The present investigation was conducted as part of investigation on “Exploiting Phyllosphere Azotobacter and Azospirillum For Increasing Production Of Leafy Vegetables For Human Being and Green Foliage Feed For Silk Worm Under Climatic Conditions Of Chhattisgarh†at College of Agriculture Raipur and College of Agriculture and Research Station Janjgir Champa, Chhatttisgarh during 2016-17 and 2017-18. It comprises of (i) Survey and collection of Arjun (Terminalia arjuna) leaf samples from different locations of Raipur, Durg and Janjgir Champa districts of Chhattisgarh for isolation of foliar Azotobacter and Azospirillum isolates (ii) Preliminary screening of native foliar Azotobacter and Azospirillum isolates on the basis of their growth performance and/or nitrogen fixation capacity (iii) Field grown arjun experiments for evaluation of different isolates in order to formulate promising liquid foliar biofertilizers. The data collected and recorded on various characters during the period of investigation were analyzed statistically. Leaf samples were collected from Kulipota, Khisora, Dongari, Baloda, Bachi Hardi, Parsahi I and Parsahi II arjun growing villages of Janjgir Champa district for isolation of foliar Azotobacter and Azospirillum isolates and after proper characterization, testing and screening, the promising two native foliar Azotobacter and Azospirillum isolates were selected on the basis of growth and / or atmospheric N fixing capacity and for their further testing under field conditions. Promising isolates Azotobacter A3 and A6 and Azospirillum A15 and 18 were selected. A consistent increase in leaf biomass of field grown arjun from first to second and second to third foliar inoculation at 15 days intervals were observed. Biological nirtrogen fixation increased and also higher dehydrogenase activity was observed.
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How to cite this article:
Menaka M, SB Gupta, Tapas Chowdhury, AK Chaubey. Exploiting Phyllosphere azotobacter and Azospirillum for increasing production of Arjun leaves for silk worm under climatic conditions of Chhattisgarh. Int J Chem Stud 2019;7(2):1910-1912.
