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Disease progress of angular leaf spot caused by isariopsis griseola sacc. and its implications on resistance of some bean (phaseolus vulgaris l.) cultivars
(1988)
Disease progress of angular leaf spot caused by Isariosis griseola Sacc. was determined in the field on 14 bean cultivars after artificially induced infection. Isolate IG1-77 of the fungus was used to cause the infection, ...
Relapses in dogs experimentally infected with Trypanosoma brucei and treated with diminazene aceturate or isometamidium chloride.
(University of Nairobi., 1988-03)
Twenty dogs of mixed local East African breeds were used. Five of the dogs were uninfected controls and 15 were infected with T. brucei (ILRAD 273). Five of the infected dogs were untreated controls, five were treated with ...
Dosage-mortality and time-mortality responses of the armyworm Spodoptera exempta to a nuclear polyhedrosis virus.
(University of Nairobi, 1981)
Third-instar larvae of Spodoptera exempta (Wlk.) were fed on young maize leaves treated with 20 mu l of polyhedral inclusion body (PIB) suspension of concentrations that varied from 1.6 X 102 to 1.6 X 109 PIBs/ml. Daily ...
Epizootiological observations on a nuclear polyhedrosis of the African armyworm Spodoptera exempta (Walk.).
(University of Nairobi, 1983)
An outbreak of a nuclear polyhedrosis virus disease in a population of Spodoptera exempta (Wlk.) at 4 sites in Kenya in 1974 is described. Larval mortality began 11 days after the larval outbreak began and reached a peak ...
Time-mortality response in Spodoptera exempta (Walk.) infected with heat-treated nuclear polyhedrosis virus.
(University of Nairobi, 1981)
The susceptibility of third-instar larvae of Spodoptera exempta (Wlk.) to a heat-treated nuclear polyhedrosis virus was tested in the laboratory. The polyhedral suspension was purified by differential centrifugation and ...
Eucalyptus citriodora - essential oil content and chemical varieties in Kenya.
(University of Nairobi, 1985)
The essential oil content of leaves of E. citriodora from several locations in Kenya was 2.2-8.3%. The chief constituents of the oil were citronellal (65-88%) citronellol (2-25%) and isopulegol (2-19%). The presence of 2 ...
Radiant energy conversion in three cultivars of Phaseolus vulgaris.
(University of Nairobi, 1985)
DM accumulation, leaf area development and radiant energy interception were measured in P. vulgaris cv. Mwezi Moja, Canadian Wonder and Rose Coco grown at Nairobi in 1982. Max. interception of photosynthetically active ...
New perspectives on natural resource development in developing countries
(University of Nairobi, 1981)
The link between natural resources and economic development is more and more regarded as a fact today even though the whole process of development is only partially understood. The awareness has now spread to the developing ...
Prediction of the advancing wetting front in border strip irrigation
(University of Nairobi, 1980)
Four methods of predicting the advance of the water front in border irrigation are compared for nine sets of experimental data reported in the literature. The water balance method (Bishop et al., 1967), the method of ...
The effect of cultivation on organic carbon, nitrogen and phosphorus of some Kenyan red soils.
(University of Nairobi, 1988)
In a comparative study of cultivated and uncultivated adjacent soils, changes in carbon, nitrogen and phosphorus were examined. Three soil profiles (0-100 cm) were sampled at increments of 10 cm and analysed. The 3 sample ...