Impact of Three Isolates of <i>Cercosporidium personatum</i> (Berk. Et M.A Curt.), a Pathogen of Late Leaf Spot, on Defoliation and Yield in Groundnut (<i>Arachis hypogaea</i> L.) under Controlled Conditions

• DOI: 10.4236/ajps.2023.1410075
• Publication Date: 2023-10-10T08:36:18Z
• Authors: Bawomon Fidèle Neya; Tobdem Gaston Dabire; Alassane Ouattara; Amado Sawadogo; Diariétou Sambakhe; Kouka Hamidou Sogoba; Tounwendsida Abel...; Ibié Gilles Thio; Frank Essem; Kadidia Koita
• Keywords: Spots; Incubation period

Late leaf spot caused by Cercosporidium personatum is one of the most widespread groundnut diseases. Along with early and rust, it main fungal diseases hampering production worldwide. accounts for significant yield losses throughout world where groundnuts are grown. This reduction in disease could result between 50% 70%. In Burkina Faso, present country, incidence varying according to region season. Could variability be linked nature isolates or conditions from each agro-ecological zone? this study, aim was assess capacity three agroclimatic zones country defoliate reduce yield. To end, (Berk. Et M.A Curt.) were collected these evaluated on contrasting varieties. A split-splot design used experiment. Isolates prepared samples farmers’ fields. After incubation laboratory, spots showing good sporulation scraped off a scalpel after immersing leaves distilled water. Inoculations carried out under controlled environment. inoculation isolate, percentage defoliation varieties then evaluated. Inoculation 30th day sowing spore suspensions at 105 spores/ml. The study showed that (P = 0.0001) significant. revealed that, whatever variety, isolate I3TF Upper Basins South Sudanese zone greatest variety TS32-1, regardless treatment, recorded best PC79-79, lowest defoliation. highest effect order 72.20%; 87.20% compared water control.