Browsing by Author "Kenya Agriculture Research Institute, Nairobi, Kenya"
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Item Heat Therapy of Cassava Infected with African Cassava Mosaic Disease(1982) Kaiser, W.J.; Louie, R.; Kenya Agriculture Research Institute, Nairobi, KenyaThe pathogen was eradicated from 33-44% of tip cuttings (1-1.5 cm long) after hot-air treatment of mother plants at 37 deg C for 87-105 days. Survival of these tip cuttings after 35-105 days was 22-73%. Exposure of entire plants to hot air treatment at 37 deg for 47-96 days caused temporary remission of symptoms in most plants. Only 1 of 129 surviving plants were freed from disease. Two successive hot-water treatments of diseased stem cuttings at 50 or 55 deg for varying intervals were not therapeutic.Item Sugarcane Mosaic Virus in Kenya(1980) Louie, R.; Kenya Agriculture Research Institute, Nairobi, KenyaSurveys revealed the virus in maize in 20 districts of the 34 surveyed and only in the western plateaux, Central Highlands and Rift Valley. High incidence occurred in Nyanza (15.2%), Rift Valley (15.8%) and Western (19.6%) provinces. The virus was not found on the Coast or Nairobi provinces. Incidence was higher in late-planted than earlier-planted maize. It was also newly reported naturally infecting 9 grass spp, including Cynodon dactylon. Distribution in maize appeared to be related to the distribution of inoculum sources, periodicity of disease development to vector populations. Maize streak and maize mosaic viruses were most often found in the Central and Coast provinces.
