| Year |
Citation |
Score |
| 2023 |
Okello J, Shikuku KM, Lagerkvist CJ, Rommel J, Jogo W, Ojwang S, Namanda S, Elungat J. Social incentives as nudges for agricultural knowledge diffusion and willingness to pay for certified seeds: Experimental evidence from Uganda. Food Policy. 120: 102506. PMID 38037573 DOI: 10.1016/j.foodpol.2023.102506 |
0.324 |
|
| 2023 |
Owuor AA, Otieno DJ, Okello JJ, Oluoch-Kosura W, Dufour D. Assessment of consumers' preference for orange-fleshed sweet potato puree chapati: a case of rural and urban consumers in Kenya. Journal of the Science of Food and Agriculture. PMID 37222731 DOI: 10.1002/jsfa.12734 |
0.341 |
|
| 2023 |
Ojwang SO, Okello JJ, Otieno DJ, Mutiso JM, Lindqvist-Kreuze H, Coaldrake P, Mendes T, Andrade M, Sharma N, Gruneberg W, Makunde G, Ssali R, Yada B, Mayanja S, Polar V, et al. Targeting market segment needs with public-good crop breeding investments: A case study with potato and sweetpotato focused on poverty alleviation, nutrition and gender. Frontiers in Plant Science. 14: 1105079. PMID 37008496 DOI: 10.3389/fpls.2023.1105079 |
0.32 |
|
| 2020 |
Bocher TF, Okello JJ, Sindi K, Nshimiyimana JC, Muzhingi T, Low JW. Do Market-oriented Engendered Agriculture-health Interventions Affect Household Nutrition Outcomes: Evidence from an Orange-fleshed Sweetpotato Project in Rwanda. Ecology of Food and Nutrition. 1-20. PMID 33251865 DOI: 10.1080/03670244.2020.1845165 |
0.357 |
|
| 2020 |
Adekambi SA, Okello JJ, Rajendran S, Acheremu K, Carey EE, Low J, Abidin PE. Effect of varietal attributes on the adoption of an orange-fleshed sweetpotato variety in Upper East and Northern Ghana. Outlook On Agriculture. 49: 311-320. PMID 33239831 DOI: 10.1177/0030727020950324 |
0.361 |
|
| 2020 |
Heck S, Campos H, Barker I, Okello JJ, Baral A, Boy E, Brown L, Birol E. Resilient agri-food systems for nutrition amidst COVID-19: evidence and lessons from food-based approaches to overcome micronutrient deficiency and rebuild livelihoods after crises. Food Security. 12: 823-830. PMID 32839664 DOI: 10.1007/S12571-020-01067-2 |
0.454 |
|
| 2020 |
Lagerkvist CJ, Mutiso JM, Okello JJ, Muoki P, Oluoch-Kosura W, Heck S. Predictors of Intention to Integrate Biofortified Orange-fleshed Sweetpotato in Child Feeding: A Field Information Experiment in Rural Kenya. Ecology of Food and Nutrition. 1-24. PMID 32406767 DOI: 10.1080/03670244.2020.1759576 |
0.312 |
|
| 2020 |
Okello JJ, Kirui OK, Gitonga ZM. Participation in ICT-based market information projects, smallholder farmers’ commercialisation, and agricultural income effects: findings from Kenya Development in Practice. 1-15. DOI: 10.1080/09614524.2020.1754340 |
0.438 |
|
| 2019 |
Shikuku KM, Okello JJ, Wambugu S, Sindi K, Low JW, McEwan M. Nutrition and food security impacts of quality seeds of biofortified orange-fleshed sweetpotato: Quasi-experimental evidence from Tanzania. World Development. 124: 104646. PMID 31798205 DOI: 10.1016/J.Worlddev.2019.104646 |
0.441 |
|
| 2019 |
Okello JJ, Kwikiriza N, Muoki P, Wambaya J, Heck S. Effect of Intensive Agriculture-Nutrition Education and Extension Program Adoption and Diffusion of Biofortified Crops Journal of Agricultural & Food Information. 20: 254-276. DOI: 10.1080/10496505.2018.1515632 |
0.372 |
|
| 2018 |
Lagerkvist CJ, Okello JJ, Adekambi S, Kwikiriza N, Abidin PE, Carey EE. Goal-setting and volitional behavioural change: Results from a school meals intervention with vitamin-A biofortified sweetpotato in Nigeria. Appetite. 129: 113-124. PMID 30008392 DOI: 10.1016/J.Appet.2018.06.038 |
0.325 |
|
| 2018 |
Mutiso JM, Okello JJ, Lagerkvist CJ, Muoki P, Kosura WO, Heck S. Effect of nutrition education and psychosocial factors on child feeding practices: findings of a field experiment with biofortified foods and different women categories. Ecology of Food and Nutrition. 57: 346-371. PMID 29979888 DOI: 10.1080/03670244.2018.1492382 |
0.301 |
|
| 2018 |
Pambo KO, Okello JJ, Mbeche RM, Kinyuru JN, Alemu MH. The role of product information on consumer sensory evaluation, expectations, experiences and emotions of cricket-flour-containing buns. Food Research International (Ottawa, Ont.). 106: 532-541. PMID 29579957 DOI: 10.1016/J.Foodres.2018.01.011 |
0.363 |
|
| 2018 |
Okello JJ, Lagerkvist C, Kakuhenzire R, Parker M, Schulte-Geldermann E. Combining means-end chain analysis and goal-priming to analyze Tanzanian farmers’ motivations to invest in quality seed of new potato varieties British Food Journal. 120: 1430-1445. DOI: 10.1108/Bfj-11-2017-0612 |
0.353 |
|
| 2018 |
Okello J, Zhou Y, Barker I, Schulte-Geldermann E. Correction to: Motivations and Mental Models Associated with Smallholder Farmers’ Adoption of Improved Agricultural Technology: Evidence from Use of Quality Seed Potato in Kenya The European Journal of Development Research. 31: 333-334. DOI: 10.1057/S41287-018-0159-Y |
0.334 |
|
| 2018 |
Pambo KO, Mbeche RM, Okello JJ, Mose GN, Kinyuru JN. Intentions to consume foods from edible insects and the prospects for transforming the ubiquitous biomass into food Agriculture and Human Values. 35: 885-898. DOI: 10.1007/S10460-018-9881-5 |
0.446 |
|
| 2017 |
Pambo KO, Okello JJ, Mbeche RM, Kinyuru JN. Exploring the Influence of Differentiated Nutrition Information on Consumers' Mental Models Regarding Foods from Edible Insects: A Means-End Chain Analysis. Ecology of Food and Nutrition. 1-22. PMID 29072498 DOI: 10.1080/03670244.2017.1392944 |
0.453 |
|
| 2017 |
Wawire AW, Wangia SM, Okello JJ. Determinants of Use of Information and Communication Technologies in Agriculture: The Case of Kenya Agricultural Commodity Exchange in Bungoma County, Kenya Journal of Agricultural Science. 9: 128. DOI: 10.5539/Jas.V9N3P128 |
0.493 |
|
| 2017 |
Okello JJ, Zhou Y, Kwikiriza N, Ogutu S, Barker I, Schulte-Geldermann E, Atieno E, Ahmed JT. Productivity and food security effects of using of certified seed potato: the case of Kenya’s potato farmers Agriculture & Food Security. 6. DOI: 10.1186/S40066-017-0101-0 |
0.404 |
|
| 2017 |
Okello JJ, Lagerkvist CJ, Muoki P, Heck S, Prain G. Does Information on Food Production Technology Affect Consumers' Acceptance of Biofortified Foods? Evidence from a Field Experiment in Kenya Journal of Agricultural & Food Information. 19: 237-254. DOI: 10.1080/10496505.2017.1383914 |
0.401 |
|
| 2017 |
Shikuku KM, Okello JJ, Sindi K, Low JW, Mcewan M. Effect of Farmers’ Multidimensional Beliefs on Adoption of Biofortified Crops: Evidence from Sweetpotato Farmers in Tanzania The Journal of Development Studies. 55: 227-242. DOI: 10.1080/00220388.2017.1414188 |
0.328 |
|
| 2016 |
Okello J, Zhou Y, Kwikiriza N, Ogutu S, Barker I, Schulte-Geldermann E, Atieno E, Ahmed J. Determinants of the Use of Certified Seed Potato among Smallholder Farmers: The Case of Potato Growers in Central and Eastern Kenya Agriculture. 6: 55. DOI: 10.3390/Agriculture6040055 |
0.46 |
|
| 2016 |
Pambo KO, Otieno DJ, Okello JJ. Analysis of Consumer Preference for Vitamin A-Fortified Sugar in Kenya The European Journal of Development Research. 29: 745-768. DOI: 10.1057/S41287-016-0059-Y |
0.456 |
|
| 2016 |
Lagerkvist CJ, Okello J, Muoki P, Heck S, Prain G. Nutrition promotion messages: The effect of information on consumer sensory expectations, experiences and emotions of vitamin A-biofortified sweet potato Food Quality and Preference. 52: 143-152. DOI: 10.1016/J.Foodqual.2016.04.009 |
0.379 |
|
| 2016 |
Lagerkvist CJ, Okello J. Using the integrative model of behavioral prediction and censored quantile regression to explain consumers’ revealed preferences for food safety: Evidence from a field experiment in Kenya Food Quality and Preference. 49: 75-86. DOI: 10.1016/J.Foodqual.2015.11.012 |
0.437 |
|
| 2015 |
Okello JJ, Hutchinson MJ, Mwang’ombe A, Ambuko J, Olubayo F, Mwakangalu M. Consumer Demand for Value-added Products of African Indigenous Vegetables in Coastal Kenya: The Case of Sun-dried and Frozen Cowpea Leaves The Journal of Agriculture, Food Systems, and Community Development. 6: 189-207. DOI: 10.5304/Jafscd.2015.061.004 |
0.493 |
|
| 2015 |
Lagerkvist CJ, Okello JJ, Karanja N. Consumers’ mental model of food safety for fresh vegetables in Nairobi a field experiment using the Zaltman Metaphor Elicitation Technique British Food Journal. 117: 22-36. DOI: 10.1108/Bfj-09-2013-0280 |
0.451 |
|
| 2015 |
Okello JJ, Sindi K, Shikuku K, Low J, McEwan M, Nakazi F, Namanda S, Babu A, Mafuru J. Effect of Technology Awareness and Access on the Conservation of Clean Planting Materials of Vegetatively Produced Crops: The Case of Sweetpotato Agroecology and Sustainable Food Systems. 39: 955-977. DOI: 10.1080/21683565.2015.1053586 |
0.344 |
|
| 2015 |
Lagerkvist CJ, Shikuku K, Okello J, Karanja N, Ackello-Ogutu C. A conceptual approach for measuring farmers’ attitudes to integrated soil fertility management in Kenya Njas-Wageningen Journal of Life Sciences. 74: 17-26. DOI: 10.1016/J.Njas.2015.06.001 |
0.397 |
|
| 2015 |
Lagerkvist CJ, Okello J, Karanja N. Consumers' evaluation of volition, control, anticipated regret, and perceived food health risk. Evidence from a field experiment in a traditional vegetable market in Kenya Food Control. 47: 359-368. DOI: 10.1016/J.Foodcont.2014.07.026 |
0.414 |
|
| 2015 |
Wafula L, Oduol J, Oluoch-Kosura W, Muriuki J, Okello J, Mowo J. Does strengthening technical capacity of smallholder farmers enhance adoption of conservation practices? The case of conservation agriculture with trees in Kenya Agroforestry Systems. 90: 1045-1059. DOI: 10.1007/S10457-015-9882-Y |
0.395 |
|
| 2015 |
Okello JJ. Food standards, smallholder farmers and participation in high value fresh export markets Food Safety, Market Organization, Trade and Development. 205-228. DOI: 10.1007/978-3-319-15227-1_11 |
0.37 |
|
| 2014 |
Wainaina PW, Okello JJ, Nzuma JM. Blessing or evil? Contract farming, smallholder poultry production and household welfare in Kenya Quarterly Journal of International Agriculture. 53: 319-340. DOI: 10.22004/Ag.Econ.199252 |
0.448 |
|
| 2014 |
Timu AG, Mulwa R, Okello J, Kamau M. The role of varietal attributes on adoption of improved seed varieties: the case of sorghum in Kenya Agriculture & Food Security. 3. DOI: 10.1186/2048-7010-3-9 |
0.431 |
|
| 2014 |
Hitayezu P, Okello JJ, Obel-Gor C. Farm households' participation in rural non-farm employment in post-war Rwanda: Drivers and policy implications Development Southern Africa. 31: 452-474. DOI: 10.1080/0376835X.2014.889560 |
0.447 |
|
| 2014 |
Ogutu SO, Okello JJ, Otieno DJ. Impact of information and communication technology-based market information services on smallholder farm input use and productivity: The case of Kenya World Development. 64: 311-321. DOI: 10.1016/J.Worlddev.2014.06.011 |
0.463 |
|
| 2014 |
Zingiro A, Okello JJ, Guthiga PM. Assessment of adoption and impact of rainwater harvesting technologies on rural farm household income: the case of rainwater harvesting ponds in Rwanda Environment, Development and Sustainability. 16: 1281-1298. DOI: 10.1007/S10668-014-9527-8 |
0.491 |
|
| 2013 |
Okello JJ. Use of information and communication tools and services by rural grain traders: The case of Kenyan maize traders Technology, Sustainability, and Rural Development in Africa. 152-167. DOI: 10.4018/Jictrda.2011070104 |
0.471 |
|
| 2013 |
Lwasa S, Asingwire N, Okello JJ, Kiwanuka J. Awareness of ICT-based projects and the intensity of use of mobile phones among smallholder farmers in Uganda: The case of Mayuge and Apac districts Technology, Sustainability, and Rural Development in Africa. 89-101. DOI: 10.4018/Jictrda.2011070103 |
0.404 |
|
| 2013 |
Katengeza SP, Okello JJ, Jambo N. Use of mobile phone technology in agricultural marketing: The case of smallholder farmers in Malawi Technology, Sustainability, and Rural Development in Africa. 102-112. DOI: 10.4018/Jictrda.2011070102 |
0.485 |
|
| 2013 |
Katengeza SP, Kiiza B, Okello JJ. The role of ICT-Based market information services in spatial food market integration: The case of Malawi agricultural commodity exchange Technology, Sustainability, and Rural Development in Africa. 15-28. DOI: 10.4018/Jictrda.2011010101 |
0.426 |
|
| 2013 |
Okello JJ, Al-Hassan RM, Okello RM. A framework for analyzing the role of ICT on agricultural commercialization and household food security Technology, Sustainability, and Rural Development in Africa. 1-14. DOI: 10.4018/Jictrda.2010010103 |
0.533 |
|
| 2013 |
Okello JJ, Ofwona-Adera E, Mbatia OLE, Okello RM. Using ICT to integrate smallholder farmers into agricultural value chain: The case of drumnet project in Kenya Technology, Sustainability, and Rural Development in Africa. 44-58. DOI: 10.4018/Jictrda.2010010102 |
0.386 |
|
| 2013 |
Maumbe BM, Okello J. Uses of information and communication technology (ICT) in agriculture and rural development in sub-saharan Africa: Experiences from South Africa and Kenya Technology, Sustainability, and Rural Development in Africa. 113-134. DOI: 10.4018/Jictrda.2010010101 |
0.703 |
|
| 2013 |
Maumbe BM, Okello JJ. Technology, sustainability, and rural development in Africa Technology, Sustainability, and Rural Development in Africa. 1-378. DOI: 10.4018/978-1-4666-3607-1 |
0.687 |
|
| 2013 |
Kirui OK, Okello JJ, Nyikal RA, Njiraini GW. Impact of mobile phone-based money transfer services in agriculture: Evidence from Kenya Quarterly Journal of International Agriculture. 52: 141-162. DOI: 10.22004/Ag.Econ.173644 |
0.431 |
|
| 2013 |
Lagerkvist CJ, Hess S, Okello J, Karanja N. Consumer Willingness to Pay for Safer Vegetables in Urban Markets of a Developing Country: The Case of Kale in Nairobi, Kenya Journal of Development Studies. 49: 365-382. DOI: 10.1080/00220388.2012.724165 |
0.509 |
|
| 2013 |
Lagerkvist CJ, Hess S, Okello J, Hansson H, Karanja N. Food health risk perceptions among consumers, farmers, and traders of leafy vegetables in Nairobi Food Policy. 38: 92-104. DOI: 10.1016/J.Foodpol.2012.11.001 |
0.41 |
|
| 2012 |
Okello JJ, Kirui O, Njiraini GW, Gitonga Z. Drivers of Use of Information and Communication Technologies by Farm Households: The Case of Smallholder Farmers in Kenya Journal of Agricultural Science. 4. DOI: 10.5539/Jas.V4N2P111 |
0.492 |
|
| 2012 |
Kirui OK, Okello JJ, Nyikal RA. Awareness of Mobile Phone-Based Money Transfer Services in Agriculture by Smallholder Farmers in Kenya International Journal of Ict Research and Development in Africa. 3: 1-13. DOI: 10.4018/Jictrda.2012010101 |
0.382 |
|
| 2012 |
Okello JJ, Lagerkvist CJ, Hess S, Ngigi M, Karanja N. Choice of fresh vegetable retail outlets by developing-country urban consumers: The case of kale consumers in Nairobi, Kenya European Journal of Development Research. 24: 434-449. DOI: 10.1057/Ejdr.2011.58 |
0.485 |
|
| 2012 |
Lagerkvist CJ, Okello J, Karanja N. Anchored vs. relative best–worst scaling and latent class vs. hierarchical Bayesian analysis of best–worst choice data: Investigating the importance of food quality attributes in a developing country Food Quality and Preference. 25: 29-40. DOI: 10.1016/J.Foodqual.2012.01.002 |
0.344 |
|
| 2012 |
Lagerkvist CJ, Ngigi M, Okello JJ, Karanja N. Means-End Chain approach to understanding farmers' motivations for pesticide use in leafy vegetables: The case of kale in peri-urban Nairobi, Kenya Crop Protection. 39: 72-80. DOI: 10.1016/J.Cropro.2012.03.018 |
0.454 |
|
| 2012 |
Miruka MK, Okello JJ, Kirigua VO, Murithi FM. The role of the Kenya Agricultural Research Institute (KARI) in the attainment of household food security in Kenya: A policy and organizational review Food Security. 4: 341-354. DOI: 10.1007/S12571-012-0197-9 |
0.472 |
|
| 2011 |
Okello JJ, Narrod CA, Roy D. Export Standards, Market Institutions and Smallholder Farmer Exclusion from Fresh Export Vegetable High Value Chains: Experiences from Ethiopia, Kenya and Zambia Journal of Agricultural Science. 3. DOI: 10.5539/Jas.V3N4P188 |
0.442 |
|
| 2010 |
Okello JJ, Swinton SM. From circle of poison to circle of virtue: Pesticides, export standards and kenya's green bean farmers Journal of Agricultural Economics. 61: 209-224. DOI: 10.1111/J.1477-9552.2009.00211.X |
0.656 |
|
| 2010 |
Gitonga ZM, Chabi-Olaye A, Mithöfer D, Okello JJ, Ritho CN. Control of invasive Liriomyza leafminer species and compliance with food safety standards by small scale snow pea farmers in Kenya Crop Protection. 29: 1472-1477. DOI: 10.1016/J.Cropro.2010.08.007 |
0.393 |
|
| 2010 |
Okello JJ, Okello RM. Do EU pesticide standards promote environmentally-friendly production of fresh export vegetables in developing countries? The evidence from Kenyan green bean industry Environment, Development and Sustainability. 12: 341-355. DOI: 10.1007/S10668-009-9199-Y |
0.499 |
|
| 2009 |
Okello JJ, Okello RM, Ofwona-Adera E. Awareness and the use of mobile phones for market linkage by smallholder farmers in Kenya E-Agriculture and E-Government For Global Policy Development: Implications and Future Directions. 1-18. DOI: 10.4018/978-1-60566-820-8.ch001 |
0.37 |
|
| 2009 |
Narrod C, Roy D, Okello J, Avendaño B, Rich K, Thorat A. Public-private partnerships and collective action in high value fruit and vegetable supply chains Food Policy. 34: 8-15. DOI: 10.1016/J.Foodpol.2008.10.005 |
0.462 |
|
| 2007 |
Okello JJ, Swinton SM. Compliance with international food safety standards in Kenya's green bean industry: Comparison of a small- and a large-scale farm producing for export Review of Agricultural Economics. 29: 269-285. DOI: 10.1111/J.1467-9353.2006.00342.X |
0.646 |
|
| 2007 |
Shiferaw BA, Okello J, Reddy RV. Adoption and adaptation of natural resource management innovations in smallholder agriculture: reflections on key lessons and best practices Environment, Development and Sustainability. 11: 601-619. DOI: 10.1007/S10668-007-9132-1 |
0.441 |
|
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