ISOLASI DAN DETERMINASI BAKTERI AZOTOBACTER DARI RHIZOSFER TIGA TUMBUHAN BAWAH DI LAHAN PERTANAMAN JATI (Tectona grandis L.f)
| Main Author: | , Handojo Hadi Nurjanto , Arom Figyantika , Tifa Kharisma |
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| Format: | Article NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : UIN Maulana Malik Ibrahim
, 2009
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| Online Access: |
https://repository.ugm.ac.id/95490/ http://repository.ugm.ac.id/digitasi/index.php?module=cari_hasil_full&idbuku=3308 |
Daftar Isi:
- <p>Azotobacter is a non symbiotic Nitrogen fixing bacteria that usually found in plant rhizosphere, including shrubs at teak plantation area. Azotobacter has potency as biofertilizer to increase teak growth. The aims of this research were to estimate abundance of Azotobacter, to obtain isolate, and determinate it.<br /> The Abundance of Azotobacter in rhizosphere of Crotalaria mucronata, Imperata cylindrica, and Chromolaena odorata were assessed using Plate Count method. Azotobacter isolation was done using streak plate method in Jensen medium. Isolate determination were done to cell and colony morphology, biochemistry characteristic, growth rate in medium Jensen liquid, and concentration N medium (Kjehdahl method).<br /> The highest abundance of Azotobacter was in rhizosphere of C. odorata (4,7 x 10 ⁵