Revue analytique de l’étude de la flore pathogène fongique du riz : cas de la cercosporiose (Sphaerulina oryzina)

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Résumé

The important development of cereal crops, of which rice has seen, at the same time, many infectious diseases causing a dramatic fall in yields. Very few studies have been conducted on cercosporiosis in Benin as a minor ailment. But nowadays it appears more and more in the rice fields and it is important to take an interest in this pathology in order to be able to control it. The purpose of this review is to summarize the work done on rice leaf spot in order to define research perspectives for a better control of this pathology by allowing the producers to be able to recognize the symptoms of Sigatoka and to adopt appropriate methods of fight. This review is based on documentation focused on the relevance of articles. The results show that rice faces many abiotic and biotic constraints. Among the biotic constraints we have diseases due to bacteria, viruses, nematodes, fungi. Among the best known and studied fungal diseases are blast, helminthosporiosis, leaf scald, faux charcoal. Cercosporiosis considered to be a minor ailment is under-researched and is generating a great deal of research for the study of this pathology. This analytical review shows that a research perspective focused on the study of Sigatoka in rice could boost rice production in Benin and ensure better productivity in the coming years, to limit its dependence on rice elsewhere.

Mots-clés

Rice, Oryza sativa, Pathogen, Fungal, Cercospora, Sphaerulina oryzin