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Effects of avermectin B1 and fenvalerate on the survival, reproduction, and egg viability of the twospotted spider mite tetranychus urticae koch (Acari: Tetranychidae)
(University of Nairobi, 1985)
The effects of avermectin B1 (AVMB1) and fenvalerate on the survival, reproduction, and egg viability of the twospotted spider mite, Tetranychus urticae Koch, was assessed in laboratory tests at 16°, 24°, and 34°C. AVMB1 ...
The Boundary Between The Northern And Southern Sq Current Loops Over The African Continent
(University of Nairobi, 1984-04)
Geomagnetic declination variations of five quiet days in January, April, July and October 1969 are studied, based on observations from 11 African observatories. The variations are produced by electric current systems in ...
Biomass Dynamics Of Grassland Vegetation In Kenya
(University of Nairobi, 1988-06)
Seasonal changes in plant biomass in the herb layer were measured at Nairobi National Park and Masai Mara Game Reserve in Kenya from January 1980 to February 1981. Plant biomass fluctuated in response to seasonal rainfall, ...
Growth and regeneration of plantlets in callus cultures of pineapple
(University of Nairobi, 1981-03)
Callus cultures were established from the basal region of in vitro-obtained shoot buds on MS medium supplemented with CH + CW + NAA. Such callus cultures, when grown on MS medium devoid of any growth regulators, regenerated ...
Low Frequency Dielectric Loss Measurements On Al2o3 Films
(University of Nairobi, 1982-08)
Measurements of the dielectric loss in thin Al2O3 films at low and very low frequencies are reported. A very simple but efficient experimental technique for measuring the loss tangent was used in the study. A Debye-type ...
Proteins And Surface Proteins Of Leishmania Promastigotes And Their Possible Relevance To The Characterisation Of Strains
(University of Nairobi, 1981-10)
Ramasamy R., Jamnadas H. & Mutinga M.J. 1981. Proteins and surface proteins of Leishmania promastigotes and their possible relevance to the characterisation of strains. International Journal for Parasitology11: 387–390. ...
Method for Discovering Broken Symmetries from Experimental Scattering Data
(University of Nairobi, 1982)
A method based on a modified eigenchannel formalism is proposed for discovering broken symmetries from experimental coupled-channel scattering data. The method suggests that the low-energy I=12 S-wave πN-ηN coupled-channel ...
Primary Productivity Of Natural Grass Ecosystems Of The Tropics: A Reappraisal
(University of Nairobi, 1989-04)
Studies of net primary production in four contrasting tropical grasslands show that when full account is taken of losses of plant organs above- and below-ground these ecosystems are far more productive than earlier suggested. ...
Photosynthetic Systems, Carbon Isotope Discrimination And Herbivore Selectivity In Kenya
(University of Nairobi, 1980-10)
The flora of the lowlands of East Africa possesses both C3 and C4 plants with nearly all grasses being C4. These photosynthetic systems discriminate differently against 13C. We have utilized the ‘label’ provided by the ...