Phenotypic Evaluation of Cassava (Manihot esculenta Crantz) Genotypes to Cassava Mosaic Virus by Mechanical Methods of Transmission

Abstract

Aims: Cassava (Manihot esculenta Crantz), subsistence crop in sub-Saharan Africa was threatened by cassava mosaic virus that caused a devastated disease. This study aims to test thermotherapy as sanitation method in mechanical transmission study of cassava mosaic virus. ABSTRACT: Methodology: Cuttings of different cultivars were treated by heating during two hours and twenty four hours at 50°C before potting. Four mechanical techniques of virus transmission were used. Contact technique consisting to put an infected plant with a healthy plant together by one junction point and the graft technique involved the grafting of axillary buds of diseased plants to healthy plants. Latex technique consisted of passing the latex from the infected plants on the injured healthy