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Cowpea [Vigna unguiculata (L.) Walp.] is an important grain legume which is widely grown in sub-Saharan Africa (SSA) for food and feed. Its grain is composed of high levels of protein, energy and micro- and macro-nutrients. Young and succu…
Rice (Oryza sativa L.) remains the most favoured grain for human consumption in the world. The yields in Kenya and many African countries are below the world averages. Rice blast disease has been registered as a major cause for reducing yi…
Bacterial wilt (Ralstonia solanacearum) is a devastating disease of tomato that is quickly spreading and affecting many fields causing a reduction in yield and income to farmers. The objective of the study was to determine the effect of us…
Yields of tomato (Solanum lycopersicum) in Kenya has continued to decrease due to biotic stresses especially bacterial wilt (Ralstonia solanacearum), fungal diseases, nematodes, tomato yellow leaf curl and overreliance on low yielding vari…
Banana tissue culture planting materials are one of the strategies for fighting the Banana Xanthomonas Wilt (BXW) disease in Uganda. The disease is a major threat to food and income security in parts of Uganda where banana is an important …
The recent maize outbreak of maize lethal necrosis (MLN) disease is a big threat to the already strained food security in Kenya. The disease is caused by co-infection of maize with Maize chlorotic mottle virus and cereal potyviruses mostly…
Bacterial and fungal diseases of common bean (Phaseolus vulgaris) are a major constraint in production of the crop in western Kenya. The objective of this study was to determine the occurrence of fungal and bacterial diseases of common bea…
Cultivated groundnut (Arachis hypogaea L.) is an important oilseed crop widely grown in the tropics and subtropics. The yield for this crop is significantly affected by fungal foliar diseases namely leaf spots and rust to the tune of 60% i…
Genotype-by-environment (GxE) interactions is a reality that scientists deal with when developing new and better varieties. With increase in scale of both phenotypic and genetic data, coupled with environmental data, prediction of environm…
Root knot nematodes (Meloidogyne spp.) are a serious problem in smallholder tomato farms causing 90-100% yield loss in tomato crop in Kenya. For sustainable food production, effective management of nematodes is primarily dependent on the a…
Cassava (Manihot esculenta Crantz) is important for food security and livelihoods of more than 500 million people in sub-Saharan Africa particularly for poor subsistence farmers. However, its productivity is hampered by cassava brown strea…
Plant parasitic nematodes have been reported in tea plantations in Kenya and have been associated with loss of tea plants in some areas. Nematodes associated with tea have been found to be well distributed in Ngere catchment of Murang’a Co…
Groundnut (Arachis hypogaea Linn) is an important legume in western Kenya, but yields are low and declining. Pests and diseases are ranked high among the yield reducing factors. Groundnut rosette disease (GRD) is the main disease and can c…
Application of undecomposed green manure have been reported to result in poor germination and crop establishment thus poor yields. To understand the mechanism through which low emergence occurs, various legume extracts from lablab, soybean…
ver the years, farmers in dry areas of Africa have depended on a narrow range of crops that tolerate water stress for nourishment and income generation. Yellow passion fruit production is a lucrative venture of much higher income compared …
Passion fruit (Passiflora spp.) is the third most common fruit in Kenya. It belongs to the Passifloraceae family with three species under production in Kenya. The Kenya Agricultural and Livestock Research Organization (KARLO) released thre…
The use of drip irrigation has the potential to increase yields but uptake by smallholder farmers in Zimbabwe has been low. This study was conducted to determine the factors influencing the adoption of smallholder farmers in Zimbabwe. The …
Chronic food insecurity in Machakos and other semi arid areas in Kenya could be attributed to climate variability but mainly to soil nutrient decline. A lot of resources have been directed to smallholder farmers in drylands in the past but…
This study assessed the socio-cultural dimensions of harvesting jackfruit in Busia County of Kenya. Data were collected using quantitative and quantitative methods with farmers (i.e., structured interviews, key informant interviews and fie…
Although nitrogen (N) is a major limiting nutrient in most soils in Kenya, it is often lost before it is used up by crops. This is due to the high dynamics of its transformations in the soil, making it easily lost from the soil. This usual…
Jackfruit is one of the underutilised fruits in Kenya which has potential to contribute to food and nutrition security. However, little is known about the status of jackfruit production in the country. This study assessed the status of jac…
One of most prominent interventions that governments world over and especially in Africa have adopted is the enhancement of agricultural finance systems, the provision of agricultural credit to farmers, and creation of policy environments …
Soybean [Glycine max (L) Merrill] yield amongst smallholder farmers in Kenya is low and range from 445-1200 kg ha-1. These low yields are attributed to various factors including moisture stress and use of poor agronomic practices. Optimiza…
Varying levels of abscisic acid and salicylic acid whose effects can be antagonistic or synergistic are produced by plants including barley under stress conditions. This scenario has not been explored in details and scientifically document…
