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Now showing items 141-150 of 180
Inheritance of Dwarfism in Pigeonpea (Caicmus Caian (L) Millsp.)
(University Of Nairobi, 1988)
Inheritance of dwarfism was studied in pigeonpea in Fi> F2» Fg and tostcross generations involving three medium maturing dwarf mutants (Dg, PD^ PBNA), that grow to a height of about a metre and four normal height genotypes: ...
Insect pests of sunflower (Helianthus annuus L.) in Kenya
(University of Nairobi, 1982)
The pest complex of sunflower and its relative abundance and economic importance are discussed. A total of 80 insect species were collected—five of these were recorded on roots, 51 on stems and leaves and 29 on floral parts ...
Susceptibility of Dysdercus species Boisduval (Hemiptera: Pyrrhocoridae) to selected synthetic pyrethroids.
(University of Nairobi, 1988)
The relative susceptibility of 4 populations of Dysdercus fasciatus and one population each of D. nigrofasciatus, D. cardinalis and D. superstitiosus to topical application of cypermethrin, fenvalerate and permethrin was ...
A survey of the incidence of salmonella and coliform enteritis in cattle in Kabete area of Kiambu District of Kenya (1977-82).
(University of Nairobi, 1985)
An investigation was carried out to determine the incidence of bacterial enteritis in cattle over a six-year period, at the Large Animal Clinic of the Faculty of Veterinary Medicine at Kabete. A total of 1055 cattle presented ...
Some aspects of the biology of the black bean aphid Aphis fabae Scopoli reared on the common bean Phaseolus vulgaris L.
(University of Nairobi, 1985-10)
Investigations were conducted in the greenhouse to evaluate the biological performance of Aphis fabae Scopoli when bred on two varieties of the common bean, Phaseolus vulgaris L. Mean developmental period of the aphid was ...
Sources of resistance to the common cowpea pod sucking bugs Riptortus dentipes (Fabricius) and Anoplocnemis curvipes (Fabricius) in cowpea Vigna unguiculata (L.) Walp
(University of Nairobi, 1985)
The successful preliminary field evaluation in Kenya of 4022 cultivars of Vigna unguiculata from around the world revealed that >99% of them were susceptible to damage caused by the coreids Riptortus dentipes and Anoplocnemis ...
Partial protection of rats against Trypanosoma congolense by passive transfer of IgM
(University of Nairobi, 1982-11)
IgM produced during the declining phase of the first peak of parasitaemia in rats infected with an isolate of Trypanosoma congolense was isolated on a Sephadex G 200 column equilibrated against 0.05 M Tris HCl in 0.15 M ...
The effect of level of CaCO3, inoculation and lime pelleting on the nodulation and growth of beans in five acid soils.
(Univeristy of Nairobi, 1981)
In greenhouse trials with Phaseolus vulgaris cv. Canadian Wonder grown on 5 acid soils of pH 3.9-5.1, nodule wt. decreased with increasing percentage soil C, and at 5.60% C no nodules were observed. In soils with low OM ...
Comparison of the effects of dark and yellow rapeseed hulls, soybean hulls and a purified fiber source on growth, feed consumption and digestibility of dietary components in starter pigs
(1985)
A trial involving a total of 56 weanling pigs was conducted to investigate the effects
of including dark (Tower) and yellow (R500) rapeseed hulls, soybean hulls and a
purified fiber source (Celufil) as l}Vo of the diets ...
A comparison of indirect methods of estimating feed intake on pasture.
(Blackwell Scientific Publications, 1981)
The data from 12 individual cattle grazed on a
uniform sward were used to compare field sampling
of faeces with three time-schedules for rectal
sampling of faeces. Estimates of digestibility from
a faecal nitrogen ...