ON-FARM TESTING OF SELECTED CASSAVA CLONES

摘要

Many local cassava(Manihot esculenta Crantz) varieties grown in Zanzibar are sweet and acceptable to farmers, but are prone to common virus diseases and pests. Unfortunately, these are low yielders. Most of the introduced varieties were not accepted by farmers. In order to enhance the acceptance of new high yielding new materials (five local bred breeding lines ZNZ/98/010, ZNZ/98/036, ZNZ/98/084, ZNZ/98/043 and ZNZ/98/034) were tested on-farm at UYT stage at 7 sites against Boma (local best) and a long time introduced variety, H.46106/27, a participatory evaluation trial was conducted. Farmers prefered clones ZNZ/98/036, ZNZ/98/034 and ZNZ/98/ 084 due to sweetness, disease resistance, root yields and dry matter content.