| Autor: |
Kazi Rasel Uddin, S. M. Badier Rahman, Iffat Jahan, Mahmudul Hasan, Ashraful Hasan, Mozammel Hossain, Nazibur Rahman, Salina Akter, Afroza Parvin |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Jahangirnagar University Journal of Biological Sciences. 3:47-53 |
| ISSN: |
2306-0263 |
| Popis: |
The microbial activity of ten selected Azospirillum isolates was measured in terms of the amount of CO2 evolved by the isolates after incubation for 5 days which ranged from 6.88 to19.25 mg. Nitrogen fixing efficiency all of the isolates was determined by microkjeldhal method and the nitrogen fixing efficiency ranged from 10.03 to 13.11 mg N/g substrate. The growth of Azospirillum isolates was significant affected by different physiological factors such as pH, temperature and salinity. Most of the isolates showed optimum growth at pH 6.8, temperature 37°C and in the absence of NaCl. Azospirillum has the potential to be used as a substitute and or supplement of N-fertilizers. Further research is needed to estimate N-supplement potentials of biological nitrogen fixation (BNF) systems at the farm level.Jahangirnagar University J. Biol. Sci. 3(1): 47-53, 2014 (June) |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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