Browsing School of Agriculture, Natural Resources and Environmental Studies by Author "Aguyoh, Joseph Nyamori"
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Curing reduces postharvest deterioration of biozyme® produced potatoes ( Solanum tuberosum L.)
Karanja, B. K.; Isutsa, D. K.; Aguyoh, Joseph Nyamori (Global journal of Bio-science and technology, 2013)Potato is among food crops that are heavily relied upon for food security assurance worldwide. Potato tubers are consumed in their fresh form and therefore require proper storage to prolong their life after ... -
Economic efficiency of green maize intercropped with beans grown under Tithonia and inorganic fertilizer
Aguyoh, Joseph Nyamori; Opiyo, Arnold Mathew; Muturi, Esther Waithira (African Journal of Agricultural Research, 2015-11-20)A field trial aimed at assessing the performance of maize and beans under intercropped systems was conducted in 2013 under three experimental components of maize, beans and maize-bean intercrop in a randomized complete ... -
Effect of Light and Temperature through Poly Film Covers on Anthocyanin Content in Rose Cut Flowers
Abucheli, G. Oloo; Aguyoh, Joseph Nyamori; Liu, G. (International Journal of Plant & Soil Science, 2017-11-22)Quality is the most important attribute in rose cut flowers for both export and domestic market. Quality in cut flowers may be defined by many attributes however, among the most important is colour. A group of pigments ... -
Effect of Light and Temperature through Poly Film Covers on Anthocyanin Content in Rose Cut Flowers
G, Oloo-Abucheli; Aguyoh, Joseph Nyamori; Liu, G. (International Journal of Plant & Soil Science, 2017)Quality is the most important attribute in rose cut flowers for both export and domestic market. Quality in cut flowers may be defined by many attributes however, among the most important is colour. A group of pigments ... -
Effects of cowpea leaf harvesting initiation time on yields and profitability of a dual purpose sole cowpea and cowpea maize intercrop
Aguyoh, Joseph Nyamori; Saidi, Mwanarusi; Itulya, Francis M.; Mshenga, Patience. M.; Owour, George (2010)Harvesting of cowpea leaves for use as leaf vegetable has gained prominence in many parts of Africa and Asia. Little is known on effects of leaf harvesting on leaf and grain yields and profitability of cowpea-based ... -
Effects of Integration of Irrigation Water and Mineral Nutrient Management in Seed Potato (Solanum Tuberosum L.) Production on Water, Nitrogen and Phosphorus Use Efficiencies
Aguyoh, Joseph Nyamori; Isutsa, Dorcas K.; Gathungu, Geofrey (2014-11-27)Inorganic fertilizers have become extremely important in correcting declining soil fertility in seed potato (Solanum tuberosum L.) production in Kenya. Unreliable rainfall has also limited seed production. Knowledge on ... -
Improving Carrot Yield and Quality through the Use of Bio-slurry Manure
Aguyoh, Joseph Nyamori; Jeptoo, Agnes; Saidi, Mwanarusi (Canadian Center of Science and Education, 2012-11-25)Continuous cultivation of farms has led to decline in soil fertility due to constant removal of nutrients leading to reduction of carrot (Daucus carota L.) yields. A field study was carried out at Egerton University, ... -
Improving Seed Potato Leaf Area Index, Stomatal Conductance and Chlorophyll Accumulation Efficiency through Irrigation Water, Nitrogen and Phosphorus Nutrient Management
Aguyoh, Joseph Nyamori; Kingori, Gathungu Geofrey; Isutsa, Khasungu Dorcas (Journal of Agricultural Studies, 2016)A study was conducted in a Rainshelter (RTrial) at Horticultural Research and Teaching Farm, Egerton University to determine the effect of integration of irrigation water, nitrogen (N) and phosphorus (P) application on ... -
Influence of Irrigation Water, Nitrogen and Phosphorus Nutrient Rates on Relative Weight Loss and Sprouting Characteristics of Seed Potato Tubers After Storage
Aguyoh, Joseph Nyamori; Gathungu, Geofrey; Isutsa, Dorcas K. (Canadian Center of Science and Education, 2013-07-17)Potato has overtime generated special importance in most parts of Kenya and the world as a means of strengthening food security and increasing revenue for farmers. However, potato productivity and industry expansion have ... -
Influence of soil moisture levels and packaging on post harvest qualities of tomato
Aguyoh, Joseph Nyamori; Imani, Caroline; Opiyo, Mathew (2015-03-11)Preharvest factors influence postharvest quality of tomatoes. Whereas water stress improves fruit total soluble solids; and polyethylene is used for packaging of fresh horticultural produce, little is known about their ... -
Interaction of Insects and Weeds in a Snap Bean Agroecosystem
Aguyoh, Joseph Nyamori; Masiunas, John B. (2004)Abstract.Integrated weed management strategies maintain sub-threshold levels of weeds. The remaining weeds may impact the feeding and habitation patterns of both potato leafhoppers and bean leaf beetles in a snap bean ... -
Interactive effects of packaging and storage temperatures on the shelf-life of okra
Ngure, Joyce W.; Aguyoh, Joseph Nyamori; Gaoquiong, Liu (ARPN Journal of Agricultural and Biological Science, 2009-05)A study aimed at evaluating the potential benefits of pre-packaging and storage temperature in extending the shelf life of okra was conducted at Egerton University Horticulture Field and Biotechnology Laboratory. Okra ... -
Interference of large crabgrass (Digitaria sanguinalis) with snap beans
Aguyoh, Joseph Nyamori; Masiunas, John B. (Cambridge University Press on behalf of the Weed Science Society of America, 2003)Field experiments were conducted to determine the effect of large crabgrass densities of 0.5 to 8 plants m-1 of row and emergence time on snap bean yield. Large crabgrass was planted either along with snap beans (early) ... -
Maturity of Freshmarket Sweet Corn with Directseeded Plants, Transplants, Clear Plastic Mulch, and Rowcover Combinations
Aguyoh, Joseph Nyamori; Taber, Henry G.; Lawson, Vince (1999) -
Optimization of Seed Potato Specific Density, Starch and Dry Matter Contents and Tuberization Capacity of Resultant Plants Through Integrated Irrigation, Nitrogen and Phosphorus Management
Aguyoh, Joseph Nyamori; Gathungu, Geofrey; Isutsa, Dorcas Khasungu (Journal of Plant Sciences, 2015-07-30)A study was conducted in a Rainshelter (RTrial) at the Horticultural Research and Teaching Farm of Egerton University to determine the effect of integrated application of irrigation water, nitrogen (N) and phosphorus (P) ... -
Seed Potato Growth, Harvest Index and Net Economic Benefit Improvement through Irrigation Water, Nitrogen and Phosphorus Management
Gathungu, Geofrey; Aguyoh, Joseph Nyamori; Isutsa, Dorcas Khasungu (Columbia International Publishing American Journal of Agricultural Science and Technology, 2016)A study was conducted in a Rainshelter (RTrial) at Egerton University to determine the correlation between irrigation water, nitrogen (N) and phosphorus (P) application on seed potato growth, harvest index (HI) and net ... -
Soil Incorporated Plant Residues and Nemacur affected Weed Population and Soil Nitrogen Dynamics in Asclepia Field
Aguyoh, Joseph Nyamori; Kagai, Kenneth; Tunya, Geoffrey (International Journal of Agricultural and Food Research, 2013)Field trials were conducted for two seasons in 2006 and 2007 to test the effect of Tagetes patula, Lantana camara, Tephrosia vogelii, Azadirachta indica and Nemacur on the growth of asclepiad, soil pH, and soil nitrogen ... -
Soil moisture levels affect growth, flower production and yield of cucumber
Aguyoh, Joseph Nyamori; Odhiambo, Judith Achieng (2022)Field trial to determine the optimum soil moisture level for enhanced performance of cucumber was conducted in polyethylene covered rain shelter for two seasons in 2017 and repeated in 2018. The research was conducted at ... -
Tithonia Manure improves carrot yield and quality
A. Jeptoo,; Aguyoh, Joseph Nyamori; M. Saidi, (Global Institute for Research & Education, 2013-12)A study on the effect of decomposed tithonia manure on growth, yield and quality of Carrot (Daucus carota L.) was undertaken in the Horticulture, Research and Teaching field, Egerton University for two seasons. The field ...