SEED-DIPPING APPLICATION OF LOCAL ENDOPHYTIC BACTERIAL CONSORTIUM AGAINST BACTERIAL LEAF BLIGHT OF RICE
| Main Authors: | . Y. Suryadi, D.N. Susilowati, . T.S. Kadir, . A. Ruskandar |
|---|---|
| Format: | Article application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
JURNAL AGROTROPIKA
, 2013
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| Subjects: | |
| Online Access: |
http://journal.unila.ac.id/index.php/agrotropika/article/view/687 |
Daftar Isi:
- SEED-DIPPING APPLICATION OF LOCAL ENDOPHYTIC BACTERIAL CONSORTIUM AGAINSTBACTERIAL LEAF BLIGHT OF RICE. Bacterial leaf blight of rice caused by Xanthomonas oryzae pv.oryzae is one of the most important diseases of rice, and to date no effective control measure yet. Alternativecontrols by several antagonistic microbes have been used to suppress bacterial infection. The aim of this researchwas to investigate antimicrobial effect of bacterial consortium as the primary step to control bacterialblight of rice. A total of five endophytic bacterial consortiums as biocontrol agents were developed and furtherevaluated for their capability in reducing bacterial blight of rice under screen house condition. The bacterialconsortium was applied by seed dipping method using bacterial suspension prior to transplanting. The resultshowed that bacterial consortia were able to inhibit bacterial blight disease development both in vitro and invivo test. Consortium labeled as C 1 (containing isolates *E 64,*E 65,*E 66, *C 1A, *C 29D) and C 2 (containingisolates *E 64,*E 65,*E 76, *C 1A, *CPKKP 3.5) showed higher bacterial blight percent reduction bytwo seed-dipping treatments of 24 h and 48 h incubation time, whilst C 4 and C 5 only effective by seed-dippingof 72 h incubation; however none of these consortium affected plant height as well as yield. It was indicatedthat C 1 and C 2 consortium have relatively high antagonistic activity than that of control treatment and couldbe applied further to reduce bacterial blight disease development on rice.