Assessment of the Protective Potential of Annona senegalensis Leaf Extract against Selected Fungal Pathogens of Sorghum, Tomato and Okra Seeds

The aim of this study was to access the protective potential of Annona senegalensis leaf extract against selected fungal pathogens of selected seedlings (sorghum, tomato and okra). Prior to use, the seeds were surfaced sterilized and viability test carried out. In the study, the effective concentration of the extract, optimum soaking time in the extract and infective concentration of the fungal pathogens were determined. The outcome of the effective concentration of the extract revealed the germination percentage of the sorghum seeds to range from 71% to 93.36%. For the okra seeds the result ranged from 38% to 86%, while for that of the tomato seeds the germination profile was observed to range from 28.5% to 71%. With respect to the optimum soaking time, the end result for the germination of the sorghum seeds was seen to be high at100 % which were recorded in most of the soaking time seen at 30 min, 90 min, 120min, 180 min, 210 min. Lowest value of 78.5 % was seen at 240 min soaking time in the extract. In the case of tomato seeds, the germination result revealed a variation from 28.5 % to 71 %, with the lowest and highest seen at soaking time of 240 min and 30 min respectively. The study was able to reveal the protective potential of the extract of the seeds against the fungal pathogens.