Browsing Faculty of Agriculture & Veterinary Medicine (FAg / FVM) by Title
Now showing items 2395-2414 of 5480
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Genetic Nature of Resistance in Corn to Yellow Leaf Blight
(Department of Plant Science and Crop Protection, 1974)Different corn (Zea mays L.) inbreds and hybrids with normal cytoplasm (N) and similar inbreds with Texas (Terns) and other male sterile cytoplasms were compared for their reaction to Phyllosticta yellow leaf blight. ... -
Genetic polymorphism of kappa-casein gene in indigenous Eastern Africa goat populations
(University of NairobiCollege of Agriculture and Veterinary Sciences, 2010)Indigenous goat breeds kept by majority of smallholder rural farmers in Eastern Africa are adapted to the local environment. These goats are critical for nutrition and income of their keepers. Milk production per doe is ... -
Genetic relationships among Kenyan and other East African indigenous chickens.
(University of Nairobi.Department of Animal Production, 2007-10)In this study, 30 microsatellite markers recommended by the International Society for Animal Genetics and the Food and Agriculture Organization were used to determine the extent of genetic differentiation and phylogenetic ... -
Genetic relationships of indigenous goats reared by pastoralists in Kenya based on mitochondria d-loop sequence
(University of Nairobi, 2016)Kenya indigenous goat breeds (Capra hircus) have not been accurately described. Therefore, there is threat of erosion of unique genotypes such as those associated with adaptability and disease resistance, through indiscriminate ... -
Genetic resistance to gastro-intestinal nematode parasites in Red Maasai, Dorper and Red Maasai× Dorper ewes in the sub-humid tropics.
(1999)Resistance to naturally acquired gastrointestinal (GI) nematode parasite infections (predominantly Haemonchus contortus) was studied in 166 Masai, 230 Dorper and 294 Masai × Dorper ewes in the subhumid coastal region of ... -
Genetic Structure of Hartebeest Populations Straddling a Transition Zone between Morphotypes
(TextRoad Publication, 2011)Variation in mitochondrial and microsatellite DNA was used to define the genetic structure of hartebeest populations straddling a transition zone between two morphotypes (Alcelaphus buselaphus cokei and A. b. lelwel) in ... -
Genetic structure of Lake Magadi tilapia populations
(WileyDepartment of Veterinary Anatomy, University of Nairobi,Department of Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, CanadaWildlife Forensic DNA Laboratory, Trent University, Peterborough, Ontario K9J 7B8, Canada, 2000)The control region of the mitochondrial DNA haplotype frequencies were significantly different among the two separate lagoon populations of Oreochromis alcalicus grahami in Lake Magadi and of O. a. alcalicus from lake ... -
Genetic variability among fusarium udum isolates.from pigeonpea
(Department of Plant Science and Crop Protection, 2005)Thirty-eight isolates of Fusarium udum obtained frornpigeonpea (Cajanus cajan) plants showing wilt symptoms were collected from various districts in Kenya and tested for variability in vegetative compatibility groups (YCG) ... -
Genetic Variability and Correlation Studies of Grain Yield and Related Agronomic Traits in Maize
(University Of Nairobi, 2014)A total of fourty two maize hybrids produced through a full diallel mating design and seven parental inbred lines were evaluated in three sites located at different agro-ecological zones in Kenya to determine the genetic ... -
Genetic Variation Between Ecotypic Populations Of Chloris Roxbhurghiana Grass Detected Through Rapd Analysis.
(University of NairobiDepartment of Range Management, 2006)Chloris roxburghiana is an important rangeland grass in Kenya. In some areas it has disappeared due to land degradation resulting from overgrazing and drought. Efforts to re-introduce the grass through re-seeding using ... -
Genetic variation for tolerance to low soil nitrogen (N) in common beans (Phaseolus vulgaries L.)
(Department of Crop Science, 2003)Low soil nitrogen is an important biophysical constraint to common bean (Phaseolus vulgaris L.) production in East and Central Africa. An average of 660 kg N ha-1 has been lost during the last 30 years from about 200 million ... -
Genetic variation in pigeon pea (Cajanus cajan (L.) Mill sp.) in response to successive cycles of water stress
(Department of Plant Science and Crop Protection, University of Nairobi, Kenya, 1994)Four pigeon pea [Cajanus cajan (L.) Mill sp.] cultivars were studied during two cycles of development of water stress and recovery. During these two cycles the genetic variation in vegetative development, leaf water ... -
Genetic Variation Within Two Sympatric Spotted Gum Eucalypts Exceeds Between Taxa Variation
(2007)Population substructure and hybridization, among other factors, have the potential to cause erroneous associations in linkage disequilibrium (LD) mapping. Two closely related spotted gum eucalypts, Corymbia variegata and ... -
Genetic variations between indigenous fat-tailed sheep populations in Kenya
(University of Nairobi.Department of Animal Production, 2002)Sheep are an important source of meat in Kenya. However, there are different sheep types raised in different agro-ecological zones and their genetic status is unknown. This study was designed to establish this. Using samples ... -
Genetics of adaptation in domestic farm animals: A review
(University of Nairobi.Department of Animal Production, 2010)This review summarizes available information on genetics of adaptation in major livestock species focusing on small ruminants. Adaptation to humans and consequences of domestication on predator aversion, mechanisms of ... -
Genetics of Hessian fly resistance in spring barley.
(Univerisyt of Nairobi, 1976)The resistance of Algiers, Besert and Dinar, varieties of North African origin, was analysed in detail and compared with that of Delta, a variety previously established as having stable resistance. There appeared to be ... -
Genetics of resistance to Aphis craccivora in cowpea
(Department of Plant Science and Crop Protection, University of Nairobi, Kenya, 1996)Inheritance of aphid resistance and allelic relationships among sources of resistance was studied in the parents, F1, F2, F3, and backcross populations of cowpea crosses. Each 4-day old seedling was infested with five ... -
Genetics Of Resistance To Fusarium Udum In Pigeonpa [cajanus Cajan (l.) Millsp.]
(2014-04-30)Fusarium wilt caused by Fusarium udum is an important disease oil pigeonpea [Cajanus cajan(L.) Millsp.] in Eastern and Southern Africa. Wilted plants often fail to give any yield if attacked early. Several resistant lines ... -
The Genetics Of The Butterfly Hypolimnas Misippus (l.): The Classification Of Phenotypes And The Inheritance Of Forms Misippus And Inaria
(University of Nairobi,, 1987)Hypolimnas misippus is a polymorphic and mimetic butterfly with a pantropicaP distribution. The polymorphism is autosomal and female-limited, the several female forms being generally regarded as Batesian mimics of the ... -
Genital tropism and coital transmission of Campylobacter fetus subspecies intestinalis
(University of NairobiCollege of Agriculture and Veterinary Sciences, 1979-02)