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Polyploidy Breeding of African Nightshade (Solanum section Solanum)
(International Journal of Plant Breeding, 2007)
The perception of African nightshades (Solanum section Solanum) as “healthy” foods, supported by documentation of their high nutritional and medicinal benefits, has led to a sudden and steady upsurge in their consumption, ...
Partial Fertility Restoration as Affected by Night Temperature in a Season-dependent Male-sterile Mutant Tomato, Lycopersicon esculentum Mill.
(Journal of the Japanese Society for Horticultural Science, 2007-03-13)
This study was conducted to investigate the influence of night temperature on the restoration of fertility in a season-dependent male-sterile tomato mutant (T-4). Plants were grown in greenhouses, in which minimum and ...
Plant regeneration via somatic embryogenesis of tropical maize (Zea mays L.) commercial hybrid lines.
(Journal of Tropical Microbiology and Biotechnology, 2008)
Four commercial tropical maize genotypes (H627, H625, H513 and DLC1) were screened in vitro for callus initiation and plant regeneration from immature embryos. Callus was initiated on N6 medium supplemented with varying ...
Floral Genetics of African Nightshade (Solanum section Solanum)
(International Journal of Plant Developmental Biology, 2007-04-09)
Solanum section Solanum, centering on the species commonly known as African nightshade, and botanically known as the “Solanum nigrum complex” is composed of a large number of morphogenetically distinct taxa, with certain ...
Scaling up Production of Traditional Green Leafy Vegetables in Kenya: Perspectives on Water and Nitrogen Management
(Dynamic Soil, Dynamic Plant, 2007-08-25)
Traditional green leafy vegetables are promising alternative vegetable crops consumed in Kenya and other African countries. The crops whose consumption is on the increase include vegetable amaranth (Amaranthus spp.), African ...
Nonparametric model assisted model calibrated estimation in two stage survey sampling
(JKUAT Press Ltd, 2007)
Non-response weighting adjustment approach in survey sampling
(JKUAT Press Ltd, 2006)
Non-response problem is an issue of great concern to all the researchers because it pervades almost all survey research. This ultimately creates potential for bias. The higher the non-response rate the greater the bias if ...
Seasonal time series forecasting: A comparative study of ARIMA and ANN models
(African Journal of Science and Technology (AJST), 2004)
This paper addresses the concerns of Faraway and Chatfield (1998) who questioned the forecasting ability of Artificial Neural Networks (ANN). In particular the paper compares the performance of Artificial Neural Networks ...
Seasonal time series data imputation: comparison between feed forward neural networks and parametric approaches
(JKUAT Press Ltd, 2005)
Missing data in a time series may be an obstacle that may prevents further analysis of the available series either for control, explanations or forecasting. This paper addresses the problem of "‘filling in"' missing data ...
Influence of cultivation, settlements and water sources on wildlife distribution and habitat selection in south-east Kajiado, Kenya
(Environmental Conservation, 2008)
In Kenya, lands surrounding wildlife protected areas (PAs), referred to as dispersal areas, have undergone widespread land use changes, but these have been little studied. This study investigated impacts of different
land ...