STUDY OF PSEUDOMONAS FLUORESCENS AND BACILLUS SP. GRANULAR FORMULATION TO CONTROL BACTERIAL WILT DESEASE AND PROMOTE GROWTH OF PATCHOULLI PLANT
Chrisnawati
Agricultural Faculty of Mahaputra Muhammad Yamin University
Jalan Jenderal Sudirman No. 6 Kota solok West Sumatera, Indonesia Telp. 0755-20565
Corresponding author : Alamat email ini dilindungi dari robot spam. Anda memerlukan Javascript yang aktif untuk melihatnya.
ABSTRACT
Study of granular formulation of Bacillus sp. and Fluorescent pseudomonas to control the bacterial wilt disease on patchouli plant has been done. The aims of the study were to find out application time and effective concentration of formulation. Treatments were arranged in Randomized Block Design (RBD), factorial systems, five replications. The first factor are times of application: 1, 10 and 20 days after planting (DAP) and the second factor are concentrations: 0, 50, 75 and 100 g/plant. The assessment parameters were: incubation period of symptoms disease, disease intensity, height plant and number of leaves. The results showed that Granular formulation of Bacillus sp. and Fluorescent pseudomonad could control the bacterial wilt disease with delayed the incubation period of symptom disease from 14 DAP to 32,33–54,33 DAP and decrease disease intensity from 84,2% to 19,5-44,8%. Application of 1 and 20 DAP with concentration 75 and 100 g/plant is longest incubated period of symptom disease were 48,24–54,33 DAP, highest decrease disease intensity were 19,5–29,7%, increasing height of the highest plant from 22,1 cm to 42,8–48,3 cm and leaves numbers from 20,0 to 34,6–39,7 leaves/plant.
Keywords: Efication, Granular formulation, Bacillus sp., Pseudomonas fluorescens, Patchuolli plant bacterial wilt Desease.