Etude des conditions de germination des graines de manioc (Manihot esculenta Crantz) obtenues par sélection génétique

Abstract

Study of Germination Conditions of Cassava (Manihot esculenta Crantz) Seeds obtained by Genetic Selection. The production of Cassava (Manihot esculenta Crantz), the main starch crop in Africa, is drastically affected by Cassava Mosaic Disease (CMD). Genetic selection is one of the effective strategies to control this disease. Obtaining and screening clones, through the selection process, depend on the good management of germination conditions of seeds obtained by genetic selection. With this purpose, a Split-plot design was used to evaluate the effect of various factors (light, germination medium and treatment of seeds) on the germination of seeds and on other parameters related to the rate and the duration of germination. The results, obtained indicated that a high sunlight intensity increased the rate and the speed of seed germination. Among the treatments carried out, the cold treatment of the seeds increased the rate of germination from 30 to 70%. The germination medium had no significant effect on the rate and on the speed of germination of cassava seeds. The germination duration can be reduced to 30 days in the most favorable conditions.

Keywords

• Cassava seeds
• Clones
• Conditions
• Germination
• Selection
• Togo