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Okello, J.J. ,  Kirui, O.K. ,  Gitonga, Z.M. ,  Njiraini, G.W. ,  Nzuma, J.M. ,  [Determinants of awareness and use ICT-based market information services in developing-country agriculture: The case of smallholder farmers in Kenya.] ,  Determinants of awareness and use ICT-based market information services in developing-country agriculture: The case of smallholder farmers in Kenya.

Etyang, T.B. ,  Okello, J.J. ,  Zingore, Shamie ,  Okth, P.F. ,  Mairura, Franklin S. ,  Mureith, A. ,  Waswa, Boaz S. ,  [Exploring relevance of agro input dealers in disseminating and communicating of soil fertility management knowledge: The case of Siaya and Trans Nzoia counties, Kenya.] ,  Exploring relevance of agro input dealers in disseminating and communicating of soil fertility management knowledge: The case of Siaya and Trans Nzoia counties, Kenya.

Okello, J.J. ,  Shikuku, K.M. ,  Sindi, K. ,  Low, J.W. ,  [Farmers' perceptions of orange-fleshed sweetpotato: Do common beliefs about sweetpotato production and consumption really matter?] ,  Farmers' perceptions of orange-fleshed sweetpotato: Do common beliefs about sweetpotato production and consumption really matter?

Okello, J.J. ,  Kwikiriza, N. ,  Muoki, P. ,  Wambaya, J. ,  Heck, S. ,  [Effect of intensive agriculture-nutrition education and extension program adoption and diffusion of biofortified crops.] ,  Effect of intensive agriculture-nutrition education and extension program adoption and diffusion of biofortified crops.

Lagerkvist, C.J. ,  Okello, J.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.] ,  Nutrition promotion messages: The effect of information on consumer sensory expectations, experiences and emotions of vitamin A-biofortified sweet potato.

Lagerkvist, C.J. ,  Okello, J.J. ,  Karanja, N. ,  [Evidence from a field experiment in a traditional vegetable market in Kenya] ,  [Consumers' evaluation of volition, control, anticipated regret, and perceived food health risk] ,  Consumers' evaluation of volition, control, anticipated regret, and perceived food health risk

Pambo, K.O. ,  Mbeche, R.M. ,  Okello, J.J. ,  Mose, G.N. ,  Kinyuru, J.N. ,  [Intentions to consume foods from edible insects and the prospects for transforming the ubiquitous biomass into food] ,  Intentions to consume foods from edible insects and the prospects for transforming the ubiquitous biomass into food

Lagerkvist, C.J. ,  Okello, J.J. ,  Adekambi, S. ,  Kwikiriza, N. ,  Abidin, P.E. ,  Carey, E.E. ,  [Goal-setting and volitional behavioural change: Results from a school meals intervention with vitamin-A biofortified sweetpotato in Nigeria] ,  Goal-setting and volitional behavioural change: Results from a school meals intervention with vitamin-A biofortified sweetpotato in Nigeria

Okello, J.J. ,  Lagerkvist, C.J. ,  Kakuhenzire, R. ,  Parker, M. ,  Schulte-Geldermann, Elmar ,  [Combining means-end chain analysis and goal-priming to analyze Tanzanian farmers’ motivations to invest in quality seed of new potato varieties] ,  Combining means-end chain analysis and goal-priming to analyze Tanzanian farmers’ motivations to invest in quality seed of new potato varieties

Mashisia, K. ,  Okello, J.J. ,  Wambugu, S. ,  Sindi, K. ,  Low, J.W. ,  McEwan, M. ,  [Nutrition and food security impacts of quality seeds of biofortified orange-fleshed sweetpotato: Quasi-experimental evidence from Tanzania] ,  Nutrition and food security impacts of quality seeds of biofortified orange-fleshed sweetpotato: Quasi-experimental evidence from Tanzania