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| Changes in folic acid, phenolic components, and angiotensin-converting enzyme inhibitory activity in cowpea (Vigna unguiculata) green pods with different pod maturity, Ishikawa, H., Matsumoto, R. and Iseki, K., in: Science Progress, volume 108, number -: 320163, pages 1-11, ISSN 0036-8504, 2025. [DOI] |
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| Biomass production and nutrient use efficiency in white Guinea yam (Dioscorea rotundata Poir.) genotypes grown under contrasting soil mineral nutrient availability, Matsumoto, R., Asfaw, A., Ishikawa, H., Takada, K., Shiwachi, H. and Asiedu, R., in: Frontiers in Plant Science, volume 13, number : 973388, pages 1-12, ISSN 1664-462X, 2022. [DOI] |
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| A high plant density and the split application of chemical fertilizer increased the grain and protein content of cowpea (Vigna unguiculata) in Burkina Faso, west Africa, Ishikawa, H., Batieno, B. J.*, Fatokun, C. and Boukar, O., in: Agriculture, volume 12, number 2: 199, pages 1-10, ISSN 2077-0472, 2022. [DOI] |
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| Variation in tuber dry matter content and starch pasting properties of white Guinea yam (Dioscorea rotundata) genotypes grown in three groecologies of NIGERIA, Matsumoto, R., Asfaw, A., De Koeyer, D., Muranaka, S., Yoshihashi, T., Ishikawa, H., Adebola, P. O. and Asiedu, R., in: Agronomy, volume 11, number 10: 1944, pages 1-15, ISSN 2073-4395, 2021. [DOI] |
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| Genetic diversity and population structure of cowpea [Vigna unguiculata (L.)Walp.] germplasm collected from Togo based on DArT markers, Gbedevi, K. M., Boukar, O., Ishikawa, H., Abe, A.*, Ongom, P. O., Unachukwu, N., Rabbi, I. Y. and Fatokun, C., in: Genes, volume 12, number 9: 1451, pages 1-14, ISSN 2073-4425, 2021. [DOI] |
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| Low soil nutrient tolerance and mineral fertilizer response in White Guinea Yam (Dioscorea rotundata) genotypes, Matsumoto, R., Ishikawa, H., Asfaw, A. and Asiedu, R., in: Frontiers in Plant Science, volume 12, number -: 629762, pages 1-10, ISSN 1664-462X, 2021. [DOI] |
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| Diversified approaches to evaluate wide genetic resources of cowpea for enhancing new variety development for west Africa and its social implementation by cowpea research program of IITA, Ishikawa, H. and Matsumoto, R., in: Japan Agricultural Research Quarterly, volume 55, pages 443-462, ISSN 0021-3551, 2021. |
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| Visual observation of cowpea pod elongation to predict nitrogen accumulation in immature seeds, Ishikawa, H., Ikazaki, K. and Iseki, K., in: Plant Production Science, pages 1-6, ISSN 1343-943X, 2020. [DOI] |
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| Intra plant variation in seed weight and seed protein content of cowpea, Iseki, K., Olaleye, O. and Ishikawa, H., in: Plant Production Science, pages 1-11, ISSN 1343-943X, 2019. [DOI] |
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| Characteristics of farmers' selection criteria for cowpea (Vigna unguiculata) varieties differ between north and south regions of Burkina Faso, Ishikawa, H., Drabo, I.*, Joseph, B. B.*, Muranaka, S., Fatokun, C. and Boukar, O., in: Experimental Agriculture, pages 2-10, ISSN 0014-4799, 2019. [DOI] |
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| Comparative analysis of farmers' selection criteria for cowpea (Vigna unguiculata) varieties in Niger and Burkina Faso, Ishikawa, H., Drabo, I.*, Boukar, O., Fatokun, C. and Muranaka, S., in: JARQ - Japan Agricultural Research Quarterly, volume 53, number 3, pages 159-167, ISSN 0021-3551, 2019. |
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| Development of calibration model to predict nitrogen content in single seeds of cowpea (Vigna unguiculata) using near infrared spectroscopy, Ishikawa, H., Boukar, O., Fatokun, C., Shono, M. and Muranaka, S., in: Journal of Near Infrared Spectroscopy, volume 25, number 3, pages 211-214, ISSN 0967-0335, 2017. [DOI] |
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| Edits-cowpea: strategic approach to develop value-added cowpea varieties with higher food and nutrition qualities, Muranaka, S., Shono, M., Ishikawa, H., Chien, H., Sakurai, T., Boukar, O. and Takagi, H., Abstract in the book of abstracts p. 103, Pan-African Grain Legume & World Cowpea Conference: sustainable grain legume systems for food income and nutritional security in a rapidly changing climate, 28 February - 4 March, Livingstone, Zambia, 2016. |
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| Comparative investigation of farmer's criteria for cowpea varieties via farmers' participatory varietal selection in Niger and Burkina Faso, Ishikawa, H., Drabo, I.*, Fatokun, C., Boukar, O. and Muranaka, S., Abstract, p. 95 in the book of abstracts, Tropetang 2016, "Solidarity in a competing world-fair use of resources", September 18-21, Vienna, Austria, 2016. |
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| Identification of criteria linked with farmers' acceptability of improved cowpeas via farmers' participatory varietal selection in Burkina Faso, Ishikawa, H., Drabo, I.*, Fatokun, C., Boukar, O. and Muranaka, S., Abstract in the book of abstracts p. 97, Pan-African Grain Legume & World Cowpea Conference: sustainable grain legume systems for food income and nutritional security in a rapidly changing climate, 28 February - 4 March, Livingstone, Zambia, 2016. |
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| Application of near to mid-infrared spectroscopy to estimation of grain nitrogen content in cowpea (Vigna unguiculata) grown under multiple environmental conditions, Muranaka, S., Shono, M., Manjula, K., Takagi, H. and Ishikawa, H., in: Journal of Biological and Food Science Research, volume 4, number 2, pages 16-24, ISSN 2277-0828, 2015. |
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| Development of a community-based dissemination scheme for improved cowpea varieties, Ishikawa, H., Drabo, I.*, Fatokun, C., Ousmane, B. and Muranaka, S., Abstract, p. 533 in the book of abstracts of the Tropentag 2015: management of land use systems for enhanced food security - conflicts, controversies and resolutions, in Humboldt-Universitat Berlin, Germany, September 16 - 18, 2015. |
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| IITA's approach for agribusiness - Business Incubation Platform (BIP) project, Ishikawa, H., Abstract, in Abstracts of the 239th meeting of the Center for the Study of Slavery and Justice (CSSJ), Providence, Rhode Island 02912, USA, 2015. |
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| Diurnal changes in shoot water dynamics are synchronized with hypocotyl elongation in Arabidopsis thaliana, Ishikawa, H., Sato-Nara, K., Takase, T. and Suzuki, H., in: Plant Signaling and Behavior, volume 8, number 3 (e23250), pages e23250-1-e23250-2, ISSN 1559-2316, 2013. |
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| Cowpea field guide for Burkina Faso, Ishikawa, H., Drabo, I.*, Muranaka, S. and Boukar, O., 2013. |
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| Guide pratique sur la culture du niebe pour le Burkina Faso, Ishikawa, H., Drabo, I.*, Muranaka, S. and Boukar, O., 2013. |
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| Benga sebr Burkina Faso yinga, Ishikawa, H., Drabo, I.*, Muranaka, S. and Boukar, O., 2013. |
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| Cowpea field guide for Burkina Faso (This is the english of the Dioula title published 2015), Ishikawa, H., Drabo, I.*, Muranaka, S. and Boukar, O., International Institute of Tropical Agriculture (IITA), 2013. |
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