Jurnal Tanah dan Iklim
No 26 (2007): Desember 2007

Increasing of N-uptake by Inoculation of Diazotroph Endophytic Bacteria in Vermiculite Media

DWI N. SUSILOWATI (Unknown)
RATIH SARASWATI (Unknown)
R.D HASTUTI (Unknown)
E. YUNIARTI (Unknown)



Article Info

Publish Date
17 Dec 2012

Abstract

Intensive selection of selected 15 isolates on N2-fixing activities and auxin production to diazotroph endophytic bacteria showed that five isolates were superior, that is KACP12 (0.2569 μmol hour-1 culture-1), KACP13 (0.3026 μmol hour-1 culture-1), KACP21 (0.4592 μmol hour-1 culture-1), KACP32 (0.3131 μmol hour-1 culture-1), and KAMG2 (0.4843 μmol hour-1 culture-1). Inoculated five superior isolates into soybean seeds in vermiculite media showed that soybean plant inoculated by KAMG2 has the highest nitrogenase specific activity compared to others and control, that is 2,54 ± 1,2 μmol hour-1 plant-1. However inoculation with KACM and KACP32 showed higher N-uptake of soybean plant. Although this research has conducted within theearly stage of soybean plant growth, it is obvious that inoculated diazotroph endophytic bacteria in vermiculite media seem to be a good method to introduce selected strain envisaging growth promoting and nitrogen fixation.

Copyrights © 2007






Journal Info

Abbrev

jti

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Jurnal TANAH dan IKLIM memuat hasil-hasil penelitian bidang tanah dan iklim dari para peneliti baik dari dalam maupun dari luar Balai Besar Litbang Sumberdaya Lahan Pertanian. Jurnal ini juga dapat memuat informasi singkat yang berisi tulisan mengenai teknik dan peralatan baru ataupun hasil ...