Abstract :
Pseudomonas fluorescens bacteria are biological agents that can suppress
plant disease development and growth promoter. The objective of this research
was to study of isolate Pseudomonads fluorecens who has the most excellent in
suppressing the development of chili plants to wilt disease and spur growth. This
research was conducted in the Laboratory Health Plant the Faculty of Agriculture
Universitas Pembangunan Nasional ?Veteran? East Java and in the Agricultural
Land Ketimang Village, Regency Wonoayu, District of Sidoarjo using
Randomized Block Design (RBD). This study is a factorial experiment (two
factors). The first factor is kinds isolate Pseudomonads fluorescens with four (4)
levels: Control / distilled water (P0), isolates Pf B (P1), isolates Pf 122 (P2) and
isolates Pf 160 (P3). The second factor is the concentrate with three (3) levels,
Concentration 1011(K1), Concentration 1010 (K2), and Concentration 109 (K3)
The results showed that treatment of Pf 160 is the most excellent in promoting
the growth of chili in the land, than suppressing the development of wilt disease,
followed Pf 122 and Pf B. Concentrasion 1011 best in spurring growth and yield of
chili plants in the land.
Keywords: Pseudomonas fluorescens, growth, concentration