Jennings, D.L.2015-07-232015-07-231957East African Agricultural And Forestry Journal, xxii (4), pp. 213-2190012-8325http://localhost:8080/dspace/handle/0/6259The breeding of cassavas resistant to mosaic and brown-streak viruses was started at Amani in 1937. A preliminary report of the work up to 1946 has been given by Nichols [6], who continued to be responsible for cassava breeding until his accidental death in 1951. This account therefore covers the testing period of much of Nichols's later material.enhttp://creativecommons.org/licenses/by/3.0/Journal ContributionCassavaVirusesBreedingMaize streak virus