African Journal of
Plant Science

  • Abbreviation: Afr. J. Plant Sci.
  • Language: English
  • ISSN: 1996-0824
  • DOI: 10.5897/AJPS
  • Start Year: 2007
  • Published Articles: 806

Full Length Research Paper

Effects of four plants and solarization on bacterial wilt of tomato caused by Ralstonia solanacearum E. F. Smith in Burkina Faso

Oumarou Traoré
  • Oumarou Traoré
  • Research Institute in Applied Sciences and Technologies, Natural Substances Department, National Center of Scientific and Technological Research (CNRST), West Regional Direction, 01BP 2393 Bobo-Dioulasso 01, Burkina Faso.
  • Google Scholar
Yacouba Sawadogo
  • Yacouba Sawadogo
  • Ministry of Agriculture, Animal and Fisheries Resources, National Agricultural Training School of Matourkou, 01 BP: 130 Bobo Dioulasso, Burkina Faso.
  • Google Scholar
Fousseni Boro
  • Fousseni Boro
  • Bacteriology Laboratory, Institute of the Environment and Agricultural Research, National Center of Scientific and Technological Research (CNRST), Faroko-Bâ station, 01 BP 910 Bobo-Dioulasso 01, Burkina Faso.
  • Google Scholar
Issa Wonni
  • Issa Wonni
  • Bacteriology Laboratory, Institute of the Environment and Agricultural Research, National Center of Scientific and Technological Research (CNRST), Faroko-Bâ station, 01 BP 910 Bobo-Dioulasso 01, Burkina Faso.
  • Google Scholar


  •  Received: 02 December 2022
  •  Accepted: 02 May 2023
  •  Published: 31 October 2023

Abstract

Bacterial wilt caused by Ralstonia solanacearum is a major constraint in tomato production. Experiments were carried out using four sanitised plants and solarization in a semi- controlled environment and in the field to reduce the infectious potential of the soil in R. solanacearum. The experimental design used is a randomized Fisher block with eight (8) treatments composed of Ocimum basilicom, Ocimum gratissimum, Allium cepa, Crotalaria retusa, solarization, untreated control, bactericide (IDEFIX) and the biocontrol indicator (Rossol). Seventy days after the implementation in the field, the initial infectious potential of 1.07×108 CFU g-1 of dry soil increased to 4.11×107 CFU g-1 of dry soil, an average reduction of 55.63%. O. gratissimum is the best sanitizing plant with 68.18% reduction in the infectious potential of the soil. In a semi-controlled environment C. retusa recorded the greatest reduction (73.96%) of the infectious potential of the soil among the sanitizing plants. The greatest reductions in disease incidence in the field were observed with solarization (60%) followed by C. retusa (58%).

 

Key words: Ocimum basilicom, Ocimum gratissimum, Infectious potential, Sanitizing, tomato, semi-controlled environment.