FORMULATION OF ENDOPHY BACTERIAL CONSORTIUM FOR THE CONTROL OF
BACTERIAL LEAVE BLOOD DISEASE IN RICE PLANT
N Ulfah, E Sulyanti, dan HRahma*
Program Studi Proteksi Tanaman Fakultas Pertanian Universitas Andalas Sumatera Barat
Korespondensi : Alamat email ini dilindungi dari robot spam. Anda memerlukan Javascript yang aktif untuk melihatnya.
Diterima / Disetujui
ABSTRACT
Bacterial leaf blight (HDB) is one of the important diseases in rice plants, and this disease iscaused by the pathogenic bacterium Xanthomonas oryzae pv. oryzae (Xoo). A consortium of endophytic bacteria is an alternative to control HDB disease. The study aimed to obtain a consortium of endophytic bacteria that effectively suppressed the severity of HDB disease. The study was conducted using a completely randomized design consisting of 7 treatments and four replications. The treatment consisted of a consortium combination of 3 mutually compatible bacterial species, Serratia Marcescens AR1, Bacillus cereus AJ34, and A. faecalis AJ14 positive control, negative control, and Streptomycin sulfate 0,2%. The bacterial consortium was introduced twice in the seed treatment and seedling phases before transplanting, followed by Xoo inoculation 45 days after planting using the leaf-clipping method. The results showed that the consortium of endophytic bacteria S. marcescens AR1 + B. cereus AJ34 + A. faecalis AJ14 and the consortium S. marcescens AR1 + B. cereus AJ34 were effective for controlling HDB disease with incubation periods of 4.34 dai and 4.18 dai with effectiveness of 54.45% and 48.75. The effectiveness of suppressing the severity of HDB disease by these two treatments was 35.07% and 29.67%, respectively.
Key words : formulation, consortium, endophytic bacteria, rice, Xanthomonas oryzae pv. oryzae
