Browsing Department of Botany by Title
Now showing items 106-125 of 229
-
Genotype and Environment Interactions of Yields and Yield Components of Tea (Camellia sinensis) Cultivars in Kenya
(Scientific Research Publishing, 2016-04-05)The tea crop provides income and employment to rural populations in many countries. In Kenya, tea, which is the leading export commodity crop, is grown in highlands east and west of the Rift Valley at altitudes ranging ... -
Growth and Gas Exchange Responses of Maize and Banana Plants in an Intercrop with Agroforestry Tree Species in Vihiga County, Kenya
(Asian Journal of Research in Crop Science, 2021)Agroforestry trees have been reported to improve soil fertility through nitrogen fixation, coupled with leaves and twig decomposition. High human population pressure in Vihiga County has led to reduced land area under ... -
Growth and nutrient uptake among three wetland plant species occurring in Lake Victoria basin in Kenya.
(AGRICULTURE AND BIOLOGY JOURNAL OF NORTH AMERICA, 2010)Nutrient enrichment is one of the most serious threats to wetland ecosystems. Information is lacking, particularly concerning the response of wetland plants species in Kenya in regard to nutrient enrichment of wetlands. ... -
Growth changes of seven Amaranthus (spp) during the vegetative and reproductive stages of development as influenced by variations in soil water deficit
(International Journal of Research and Innovations in Earth Science, 2015)Soil water deficit is a principal a biotic factor that limits plant growth and development in dry areas. Insufficient moisture contributes to soil water deficit and some negative effects on Amaranthus (spp) such as reduced ... -
Growth changes of seven Amaranthus (spp) during the vegetative and reproductive stages of development as influenced by variations in soil water deficit
(International Journal of Research and Innovations in Earth Science, 2015)Soil water deficit is a principal a biotic factor that limits plant growth and development in dry areas. Insufficient moisture contributes to soil water deficit and some negative effects on Amaranthus (spp) such as reduced ... -
Growth changes of seven Amaranthus (spp) during the vegetative and reproductive stages of development as influenced by variations in soil water deficit
(International Journal of Research and Innovations in Earth Science, 2015)Soil water deficit is a principal a biotic factor that limits plant growth and development in dry areas. Insufficient moisture contributes to soil water deficit and some negative effects on Amaranthus (spp) such as reduced ... -
Growth characteristics of Bambara groundnuts (Vigna subterranea) and Nerica rice (Oryza sativa) under intercrop system.
(IDOSI Publications, 2009)Intercropping offers advantage if well planned including improved soil fertility and yields. Bambara groundnuts have been shown to yield in low fertility soils and have been described as a complete food. Nerica rice has ... -
Growth of avocado plants under saline conditions
(Taylor & Francis Group, 2007-12-13)Avocado (Persea americana Mill.) is an important multipurpose tree crop. A study was conducted to investigate the growth and gas exchange characteristics of avocado seedlings growing under different salinity levels. Plants ... -
Growth performance of bamboo in tobacco-growing regions in South Nyanza, Kenya
(Academic Journals, 2008)The study was carried out on 120 field experimentation sites where 2420 bamboo cuttings were planted under the same natural tobacco growing conditions in five different zones (that is, zone A = hillside/steep sloping ... -
Hybrid performance of sorghum and its relationship to morphological and physiological traits under variable drought stress in Kenya
(Blackwell Publishing Ltd, 1998-07-01)Sorghum, Sorghum bicolor L. Moench, is grown mostly in semi‐arid climates where unpredictable drought stress constitutes a major production constraint. To investigate hybrid performance at different levels of drought stress, ... -
Identification of QTL for Striga hermonthica Resistance Using Backcross Population Derived from a Cross between Oryza sativa (cv. Nipponbare) and O. rufipogon
(Canadian Center of Science and Education, 2015-02-01)The obligate root hemiparasite, Striga hermonthica (Del.) Benth., native to sub-Saharan Africa causes serious economic constraint to cereal production. Studies on Striga spp. interactions with rice are desirable as it is ... -
Infection of sesame seed by Alternaria sesami (Kawamura) Mohanty and Behera and severity of Alternaria leaf spot in Kenya
(Taylor & Francis Group, 2000-01-01)Infection levels of Alternaria sesami in sesame (Sesamum indicum L.) seeds collected from farmers in western districts of Kenya were detected using the oatmeal agar plate method. Infection levels varied from 9% in Kakamega ... -
Influence of Climatic Factors on the Δ13c Values of the C3, C4 And CAM Dicot Species (Vegetation) of the Centrospermeaealong Altitudinal Gradient in western Region of Kenya
(Research Gate, 2017)Species of the Centrospermeae occurring at different altitudes were analyzed for δ13C values and assigned for graphical representation. The aridity of the study area was evident as defined using the Klimadiagramm. Climatic ... -
Influence of nitrogen supply on photosynthesis, chlorophyll content and yield of improved rice varieties under upland conditions in Western Kenya
(sciencedomain., 2016-07-09)Rice (Oryza sativa) is a principal staple food crop in Kenya. However, its production is still low due to inherently low and declining soil fertility. This has resulted into food and nutritional insecurity and low living ... -
Influence of NPK Blended Fertiliser on Soil Chemical Properties under Acidic Conditions of Western Kenya on Finger Millet Crop
(Asian Research Journal of Agriculture, 2017)Soil acidity is a serious problem that affects crop productivity in Western Kenya region. The county governments of Kakamega, Bungoma, Vihiga, Busia and Trans-Nzoia are promoting the application of NPK blended fertilizer ... -
Influence of NPK Blended Fertilizer Application on Chlorophyll Content and Tissue Mineral Contents of Two Finger Millet Varieties Grown in Acid Soils of Kakamega, Western Kenya
(International Journal of Plant & Soil Science, 2019)Acidic soils with high exchangeable aluminium ions occur in most parts of Kenya, western Kenya inclusive. Aluminium toxicity is a serious environmental problem that affects crop productivity in Western Kenya region. The ... -
Influence of NPK Blended Fertilizer Application on Chlorophyll Content and Tissue Mineral Contents of Two Finger Millet Varieties Grown in Acid Soils of Kakamega, Western Kenya
(International Journal of Plant & Soil Science, 2019-01-09)Acidic soils with high exchangeable aluminium ions occur in most parts of Kenya, western Kenya inclusive. Aluminium toxicity is a serious environmental problem that affects crop productivity in Western Kenya region. The ... -
Influence of Organic and Inorganic Sources of Fertilizer on Growth and Leaf Yield of Kale (Brassica oleraceae Var. Acephala DC)
(AGRICULTURAL SCIENCE AND TECHNOLOGY INFORMATION, 2005)Brassica oleraceae var. Acephala D.C. (kale, sukuma wiki) is the most important vegetable in Kenya but its production is hampered by low soil fertility particularly Nitrogen and Phosphorus. Most small holder farmers do not ... -
Influence of rainfall amount and livestock grazing on soil respiration in a moist Kenyan savannah
(African Journal of Ecology, 2019)The influence of livestock grazing and changing rainfall patterns on soil respiration (Rs) in the tropical savannah in Lambwe is unclear. Measurements of Rs using chambers were conducted between June and November 2012 in ... -
Influence of region of production on clonal black tea chemical characteristics
(Elsevier, 2008-05-01)Production of black tea from the same vegetatively propagated (VP) cultivars, in Kenya and Malawi, shows variations in both chemical composition and quality. Whereas it is possible to produce black teas with similar total ...