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| Pressure resistance of yam starches, Yamamoto, K., Hirose, M., Furuya, M., Matsuki, J., Hatta, T., Yoshihashi, T., Shiwachi, H ., Babajide, J. M.*, Lopez-Montes, A. and Takagi, H., Abstract, of paper Presented at the workshop on "Advanced Nonthermal Processing in Food Technology: effects on quality and shelf life of food and beverages, 7-10 May, 2012. |
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| Quantitative characterization of nutritional components, amino acids and diosgenin in tubers of D. cayenensis cv. Alo from Edo State, Nigeria, Matsumoto, R., Kashimira, O., Lopez-Montes, A., Kikuno, H . and Shiwachi, H ., Abstract, P.115 in the Book of Abstracts, 16th Triennial Symposium of the International Society for Tropical Root Crops (ISTRC), 23 - 28, September, 2012. |
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| Effect of collection time of scions and treatment with Gibberellin and Uniconazol-P on the growth of vine cutting in water yam (Dioscorea alata L.), Matsumoto, R., Shiwachi, H ., Kikuno, H ., Irie, K. and Toyohara, H., in: Research for Tropical Agriculture, volume 4, number 1, pages 22-26, 2011. |
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| Preliminary screening of growth regulator and mineral combination to establish in vitro meristem regeneration protocol for yam genebanking, Hasegawa, Y., Kikuno, H ., Gueye, B., Dumet, D., Oyelami, O., Shiwachi, H . and Takagi, H., in: Japanese Society for Tropical Agriculture, Research for Tropical Agriculture, October 09-10, Okinawa, Japan, pages 115-116, 2010. |
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| Optimum time for collection of root samples for chromosome observation in yams (Dioscorea spp.), Babil, P. K., Kikuno, H ., Shiwachi, H ., Toyohara, H., Fujigaki, J., Fujimaki, H. and Asiedu, R., in: Tropical Agriculture and Development, volume 54, number 3, pages 71-75, 2010. |
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| Effect of collecting time of scions and treatment of gibberellin and uniconazole-P on the growth of vine cuttings in water yam (Dioscorea alata L.), Matsumoto, R., Shiwachi, H ., Kikuno, H ., Irie, K. and Toyohara, H., in: Japanese Society for Tropical Agriculture, Research for Tropical Agriculture, October 09-10, Okinawa, Japan., pages 51-52, 2010. |
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| New technologies for improvement of yam production, Shiwachi, H . and Kikuno, H ., Poster, 2009. |
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| Optimum time for collecting root samples for chromosome observation in Dioscorea spp., Babil, P. K., Kikuno, H ., Sanada, A., Shiwachi, H ., Toyohara, H. and Fujimaki, H., in: Proceedings of Japanese Society for Tropical Agriculture: Research for Tropical Agriculture, 18-19 October, 2008, pages 73-74, 2008. |
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| Off-season yam production in Nigeria, Shiwachi, H ., Kikuno, H ., Fashola, R. and Asiedu, R., in: Proceedings of Japanese Society for Tropical Agriculture: Research for Tropical Agriculture, 18-19 October 2008, pages 97-98, 2008. |
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| Enhancing off-season yam production in Nigeria, Shiwachi, H ., Kikuno, H ., Fashola, R. and Asiedu, R., in: African Journal of Agricultural Research, volume 3, number 6, pages 407-411, ISSN 1991-637X, 2008. |
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| Comparative effects of explants sources and age of plant on rooting, shooting and tuber formation of vine cuttings of yams (Dioscorea spp.), Kikuno, H ., Matsumoto, R., Shiwachi, H ., Toyohara, H. and Asiedu, R., in: Japanese Journal of Tropical Agriculture, volume 51, number Extra issue 2, pages 71-72, 2007. |
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| Effect of sucrose treatment on root, shoot and tuber formation of vine cuttings of yams (Dioscorea spp.), Kikuno, H ., Matsumoto, R., Shiwachi, H . and Asiedu, R., in: Japanese Journal of Tropical Agriculture, volume 51, number Extra issue 2, pages 69-70, 2007. |
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| Production of mini-tubers from vine cuttings of white yam (Dioscorea rotundata), Oyetunji, O.*, Kabeya, M.* and Shiwachi, H ., in: Journal of Applied Horticulture, volume 9, number 2, pages 167-172, ISSN 0972-1045, 2007. |
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| Interaction among cultural factors in microtuberization of white yam (Dioscorea rotundata), Balogun, M., Fawole, I., Ng, S. Y. C., Ng, N. Q., Shiwachi, H . and Kikuno, H ., in: Tropical Science, volume 46, number 1, pages 55-59, ISSN 0041-3291, 2006. |
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| Breeding of yam, Adachi, T., Inaizumi, H., Kikuno, H ., Shiwachi, H ., Toyohara, H. and Nakasone, K., Japan Association for International Collaboration of Agriculture and Forestry (JICAF), 2006. |
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| Mini tuber production of white yam (D. rotundata) using vine cutting, Kikuno, H ., Muamba, K., Shiwachi, H ., Onjo, M. and Asiedu, R., in: 99th meeting of the Japanese Society Tropical Agriculture, Tsukuba, Japan, pages 41-42, 2006. |
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| The possibility of vine cutting techniques on white yam (D. rotundata) using natural compounds, Kikuno, H ., Ayankanmi, T., Shiwachi, H . and Asiedu, R., in: 99th Meeting of the Japanese Society Tropical Agriculture, Tsukuba, Japan, pages 43-44, 2006. |
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| Iron toxicity symptoms in yams (Dioscorea spp.) grown in water culture, Shiwachi, H ., Kikuno, H ., Okonkwo, C. and Asiedu, R., in: Tropical Science, volume 46, number 3, pages 160-165, ISSN 0041-3291, 2006. [DOI] |
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| Effect of N-Propyl Dihydrojasmonate (Pdj) on in vitro growth of yam (Dioscorea spp.) explants, Kikuno, H ., Oladimeji, Z., Ebuehi, Z., Ebuehi, A., Shiwachi, H ., Onjo, M. and Asiedu, R., in: Japanese Journal of Tropical Agriculture, volume 49, number 2, pages 59-60, ISSN 0021-5260, 2005. |
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| Effect of Ethephone and storage temperature on tuber sprouting in yams (Dioscorea spp.), Shiwachi, H ., Kikuno, H ., Asiedu, R., Onjo, M. and Toyohara, H., in: Journal of ISSAAS, volume 11, number 1, pages 36-43, 2005. |
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| Sprouting and yield of yam (Diocorea spp.) minisetts in relation to sett size, soil moisture and agro-ecology, Shiwachi, H ., Ayankanmi, T. and Asiedu, R., in: Tropical Science, volume 45, number 1, pages 23-27, ISSN 0041-3291, 2005. |
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| Mini tuber production using yam (Dioscorea rotundata) vines, Shiwachi, H ., Kikuno, H . and Asiedu, R., in: Tropical Science, volume 45, number 4, pages 163-169, ISSN 0041-3291, 2005. |
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| Effect of photoperiod on the development of inflorescences in white Guinea yam (Dioscorea rotundata), Shiwachi, H ., Ayankanmi, T. and Asiedu, R., in: Tropical Science, volume 45, number 3, pages 126-130, ISSN 0041-3291, 2005. |
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| Comparative effects of explant source and genotype on in vitro tuberization in Dioscorea alata and D. rotundata, Balogun, M., Ng, S. Y. C., Shiwachi, H ., Ng, N. Q. and Fawole, I., in: Tropical Science, volume 44, number 4, pages 196-200, 2004. |
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| Influence of explant condition on microtuberization of yams (Dioscorea alata and D. rotundata), Kikuno, H ., Shiwachi, H ., Onjo, M. and Asiedu, R., in: Japanese Society for Tropical Agriculture, volume 48, number 2, pages 71-72, 2004. |
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| Effect of auxins on root development in yam (Dioscorea rotundata) vine, Acha, I. A.*, Shiwachi, H ., Asiedu, R. and Akoroda, M. O.*, in: Tropical Science, volume 44, number 2, pages 80-84, ISSN 1556-9179, 2004. [DOI] |
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| Nutrient deficiency symptoms in yams (Dioscorea spp.), Shiwachi, H ., Okonkwo, C. and Asiedu, R., in: Japanese Journal of Tropical Agriculture, volume 48, number 2, pages 73-74, 2004. |
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| Current status and future of yam production, Shiwachi, H ., in: Japanese Society for Tropical Agriculture (JSTA), volume 48, number 2, pages 121-125, 2004. |
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| Distinction of mixed yam strains (Dioscorea alata L.) cultivated in Yaku Island, Onjo, M., Matsuo, T., Hakariya, S., Shiwachi, H . and Hayashi, M., in: Kagoshima University Research Center for the Pacific Islands Occasional Papers, volume 38, pages 37-41, 2003. |
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| Relationship between dormancy and its release and external factors in tubers of water yam (Dioscorea alata L.), Park, B., Onjo, M., Tominaga, s., Shiwachi, H . and Hayashi, M., in: Japanese Journal of Tropical Agriculture, volume 47, pages 42-50, 2003. |
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| Classification of water yam (Dioscorea alata) landraces by inter-simple sequence repeat (ISSR), Ichitani, K., Onjo, M. and Shiwachi, H ., in: Paper presented at the 104th Conference of the Japanese Society of Breeding, March, 2003. |
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| Agriculture and food industry in Nigeria, Abass, A. and Shiwachi, H ., Japan External Trade Organization, 2003. |
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| Agriculture and food industry in Ghana, Abass, A. and Shiwachi, H ., Japan External Trade Organization; 2003. Guide report for food industry in Africa, 2003. |
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| Possibility of early-season culture of water yam (Dioscorea alata L.) in Yaku island, Onjo, M., Shiwachi, H . and Hayashi, M., in: Kagoshima University Research Center for the Pacific Islands Occasional Papers, volume 38, pages 43-46, 2003. |
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| Challenging yam research: proceedings, Shiwachi, H ., Asahi (Japan) November 16, 2003, 2003. |
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| Food yams in Africa, Shiwachi, H ., in: International Cooperation in Agriculture and Forestry in Japanese, volume 26, number 3, pages 30-39, 2003. |
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| Induction of sprouting in dormant yam (Dioscorea spp.) tubers with inhibitors of gibberellins, Shiwachi, H ., Ayankanmi, T., Asiedu, R. and Onjo, M., in: Experimental Agriculture, volume 39, number 2, pages 209-217, ISSN 0014-4797, 2003. |
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| Influence of exogenous gibberellins inhibitors on tuber sprouting in yam, Shiwachi, H ., Ayankanmi, T., Asiedu, R. and Onjo, M., in: Tropical Science, volume 43, number 3, pages 147-151, ISSN 0041-3291, 2003. |
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| A technique for grafting water yam (Dioscorea alata), Shiwachi, H ., Ayankanmi, T. and Asiedu, R., in: Paper presented at: Proceedings of the 8th Symposium of the International Society for Tropical Root Crops-Africa Branch, Ibadan, Nigeria, 2003. |
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| Induction of germination in dormant yam (Dioscorea spp.) tubers with inhibitors of gibberellins, Shiwachi, H ., Ayankanmi, T., Asiedu, R. and Onjo, M., in: Paper presented at: The 8th symposium of the International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 12-16 November 2001, Ibadan, Nigeria, 2003. |
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| Mini-tuber production using yam (Dioscorea rotundata) vine, Shiwachi, H ., Acha, I. and Asiedu, R., in: Paper presented at: Proceedings of the 93th Conference of the Japanese Society for Tropical Agriculture, March, pages 29-30, Nairobi, Kenya, 2003. |
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| Yam breeding in IITA, Shiwachi, H ., in: Agriculture and Horticulture, volume 77, pages 801-803, 2002. |
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| Effect of day length on the development of tubers in yams (Dioscorea spp.), Shiwachi, H ., Ayankanmi, T. and Asiedu, R., in: Tropical Science, volume 42, pages 162-170, ISSN 1556-9179, 2002. |
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| Induction of germination in dormant yam (Dioscorea spp.) tubers with inhibitions of gibberellins, Shiwachi, H ., Ayankanmi, T. and Asiedu, R., pages 52, 2001. |
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| Effect of day length on the enlargement and maturation of tubers in yams (Dioscorea spp.), Shiwachi, H ., Ayankanmi, T. and Asiedu, R., volume 44, pages 33-34, 2001. |
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