Browsing Department of Crop Science by Title
Now showing items 22-41 of 62
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Economic and Biological Values for Pasture-Based Dairy Cattle Production Systems and their Application in Genetic Improvement in the Tropics
(Journal of Animal Production Advances, 2015)Economic and biological values for milk yield (MY), milk butter fat (FY), daily gain (DG), weaning weight (WWT), mature live weight (MLW), calving interval (CI), pre-weaning survival rate (PreSR), post-weaning survival ... -
The effect and interaction of Trichoderma isolates on Armillaria fungus of tea
(2015)Fungal diseases are a biotic constraint in tea production worldwide. One such disease is Armillaria. The disease causes high mortality and yield losses of tea in almost all growing regions. The most common strain of this ... -
Effect of Intercropping on Potato Bacterial Wilt Disease and Tuber Yield in Kenya
(Karatina University, 2023-12-06)Potato (Solanum tuberosum L.) is a major tuber crop in Kenya, whose productivity is heavily impaired by bacterial wilt disease, caused by Ralstonia solanacearum (Smith). Existing management strategies have not been effective, ... -
Effect of Biological Contro Antagonists Adsorbed on Chitosan Immobilized Silica Nanocomposite on Ralstonia solanacearum and Growth of Tomato Seedlings
(Advances in Research, 2016)Background: Biological control holds promise in managing bacterial wilt disease. However, its efficacy is limited by harsh environmental conditions when applied without use of suitable carrier materials. Aim: The study ... -
Effect of management and soil moisture regimes on wetland soils total carbon and nitrogen in Tanzania
(Geophysical Research Abstracts, 2013)Wetland soils play an important role as storage compartments for water, carbon and nutrients. These soils implies various conditions, depending on the water regimes that affect several important microbial and physical-chemical ... -
Effect of soil PH on postharvest pathological deterioration of sweet potato storage roots
(African Journal of Horticultural Sciences, 2008)Sweet potato (Ipomoea batatas (L.) Lam.) is the world’s seventh most important food crop but its potential to contribute to food security and income generation is limited in tropical developing countries by its short ... -
Effect of temperature on the development of Orius albidipennis Reuter, a predator of the African legume flower thrips, Megalurothrips sjostedti Trybom
(2002)The effects of temperature on the development of Orius albidipennis (Reuter) (Hemiptera: Anthocoridae), reared on its prey, Megalurothrips sjostedti (Trybom) (Thysanoptera: Thripidae), were studied in the laboratory. Nymphal ... -
Effects of blended fertilizers on soil chemical properties of mature tea fields in Kenya
(2018-06)Kenya’s tea industry depends predominantly on imported NPK fertilizers to replenish nutrients removed through plucking. In this respect, two blended fertilizers containing NPKS 25:5:5:4+9Ca+2.6Mg and NPKS 23:5:5:4+10Ca+3Mg ... -
EFFECTS OF BLENDED FERTILIZERS ON YIELDS OF MATURE TEA CLONES TRFK 6/8 AND BBK 35 GROWN IN KENYAN HIGHLANDS
(2018-08)Kenya’s tea industry depends predominantly on imported NPK fertilizers to replenish nutrients removed through plucking. In this respect, two blended fertilizers containing NPKS 25:5:5:4+9Ca+2.6Mg and NPKS 23:5:5:4+10Ca+3Mg ... -
Effects of Land Use Change on Banana Production:A Case Study of Imenti South Sub-County of Meru County in Kenya
(Britain International of Exact Sciences Journal, 2020-09)Most high agricultural potential regions in Kenya such as Imenti South (Meru County) have exceeded their population density and have been associated with sharp decline in farm productivity. There has been a ... -
Effects of maturity stage, desiccation and storage period on seed quality of cleome (cleome gynandra l.)
(Research Desk, 2014)Cleome gynandra (L.) is a weed that grows throughout the tropics and sub-tropics. In Kenya it is gradually being domesticated and grown as a vegetable that is used in many culinary systems for its remarkable nutritional ... -
Effects of Packaging and Storage Conditions on Quality of Spider Plant (Cleome gynandra L.) Seed
(African Journal of Food, Agriculture, Nutrition and Development, 2019)In Kenya, spider plant (Cleome gynandra L.) has gained popularity among consumers due to its nutritional and medicinal values. In the local markets, bundles of leafy shoots as well as uprooted young plants are offered at ... -
Efficacy and mode of application of indigenous local Beauveria bassiana isolates in the control of the tea weevil compared to Karate
(2015)The tea crop in Kenya ubiquitously is exposed to biotic and abiotic stresses which can be devastating. These include damage by five species tea weevils. Tea weevils reported to occur in Kenya include, the tea root weevil ... -
Enhancement of bacterial wilt resistance and rhizosphere health in tomato using bionanocomposites
(Springer, 2016-12)Biological control agents are useful components in the enhancement of plant disease resistance and improvement of soil properties. Effect of biological control agents (BCAs) as a disease control method in plants is hampered ... -
Evaluation of biological attributes of a native egg parasitoid, Trichogrammatoidea sp. nr. lutea (girault), kenyan accessions
(2012-09-10)Objective: This study was carried out to evaluate the biological attributes that is, parasitism, adult progeny production, and sex ratio of 21 strains of a native egg parasitoid Trichogrammatoidea sp. nr. lutea Girault ... -
Evaluation of fenpropathrin using quechers method and GC/MS/MS QQQ in Kenyan black tea
(2015)Kenyan tea has been relatively pests and diseases free apart from a few reported cases of pests. Consequently measures to control both pests and diseases have been reported by TRFK (TRFK 5th edition, 2002). Common pests ... -
Farmer knowledge, management practices and occurrence of tomato root knot nematodes in Kenya.
(2023-08)Root-knot nematodes (RKNs) (Meloidogyne spp.) is a major constraint to tomato (Solanum lycopersicum L.) production in sub-Saharan Africa; yet there is low adoption of recommended nematode control measures in regions ... -
Growth Performance of Moringa oleifera Planting Materials Derived from Cuttings and Seeds
(American Institute of Science, 2015-05-27)The worldwide interest in herbal medicine is putting intense pressure on tropical biodiversity as increasing numbers of plant species are harvested for their medicinal properties. This has led to the forest policy laying ... -
Home Sustainable Management of Invasive Pests in Africa Chapter Influence of Predatory Mites, Phytoseiulus longipes Evans. on the Within-Plant Diurnal Migration and Distribution of the Red Spider Mite, Tetranychus evansi, Baker and Pritchard on African Nightshade, Solanum scabrum
(Springer, 2020-07-14)Understanding the within-plant diurnal migration and distribution of the Red spider mite, Tetranychus evansi Baker and Pritchard, in the presence of the predatory mite Phytoseiulus longipes Evans, on African nightshade, ...