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Watanabe, T.Khan, S.H.Rao, Idupulapati M.Wasaki, JShinano, T.Ishitani, ManabuIshikawa, H.Ishikawa, S.Tawaraya, KNanamori, MUeki, N.Wagatsuma, Tadao[Physiological and Biochemical Mechanisms of Plant Adaptation to Low-Fertility Acid Soils of the Tropics: The Case of Brachiariagrasses]Physiological and Biochemical Mechanisms of Plant Adaptation to Low-Fertility Acid Soils of the Tropics: The Case of Brachiariagrasses

Ishikawa, H.Drabo, I.Muranaka, S.Boukar, O.[Bεnga sebr Burkina Faso yĭnga]Bεnga sebr Burkina Faso yĭnga

Ishikawa, H.Drabo, I.Muranaka, S.Boukar, O.[Guide pratique sur la culture du niébé pour le Burkina Faso]Guide pratique sur la culture du niébé pour le Burkina Faso

Seed size and protein content are the major breeding objectives for cowpeas (Vigna unguiculata). However, intra-plant variation in these traits causes heterogeneous seed quality and seed depreciation. To determine the causes and severity of intra-plant variation in cowpea single seed weight and p...


Iseki, K.Olaleye, O.Ishikawa, H.[Intra-plant variation in seed weight and seed protein content of cowpea]Intra-plant variation in seed weight and seed protein content of cowpea

omparative analysis of preferences and key criteria for selecting cowpea (Vigna unguiculata L. Walp.) varieties was conducted using the data collected from farmers’ participatory varietal selection (FPVS) activities conducted over 3 years with a total of 2401 farmers (1230 male and 1171 female) i...


Ishikawa, H.Drabo, I.Joseph, B.B.Muranaka, S.Fatokun, C.Boukar, O.[Characteristics of farmers’ selection criteria for cowpea (Vigna unguiculata) varieties differ between north and south regions of Burkina Faso]Characteristics of farmers’ selection criteria for cowpea (Vigna unguiculata) varieties differ between north and south regions of Burkina Faso

Cowpea is an important crop for food security, as it is a primary source of protein and cash income for farmers in the dry savanna areas of Sub-Saharan Africa. Improved varieties should contain reasonable amounts of protein in the grains, and to ensure this, timely and cost-effective analytical m...


Ishikawa, H.Boukar, O.Fatokun, C.A.Shono, M.Muranaka, S.[Development of calibration model to predict nitrogen content in single seeds of cowpea (Vigna unguiculata) using near infrared spectroscopy]Development of calibration model to predict nitrogen content in single seeds of cowpea (Vigna unguiculata) using near infrared spectroscopy
Muranaka, S.Shono, MManjula, K.Takagi, H.Ishikawa, H.[Application of near to midinfrared spectroscopy to estimation of grain nitrogen content in cowpea (Vigna unguiculata) grown under multiple environmental conditions]Application of near to midinfrared spectroscopy to estimation of grain nitrogen content in cowpea (Vigna unguiculata) grown under multiple environmental conditions

We recently demonstrated the circadian clock modulated water dynamics in the roots of a small model plant, Arabidopsis thaliana, by the Nuclear Magnetic Resonance (NMR) microimaging technique. Our developed technique was able to visualize the water distribution that depended on differences in the...


Ishikawa, H.Sato-Nara, K.Takase, T.Suzuki, H.[Diurnal changes in shoot water dynamics are synchronized with hypocotyl elongation in Arabidopsis thaliana]Diurnal changes in shoot water dynamics are synchronized with hypocotyl elongation in Arabidopsis thaliana

Ishikawa, H.Drabo, I.Muranaka, S.Boukar, O.[Cowpea field guide for Burkina Faso]Cowpea field guide for Burkina Faso

A comparative analysis of farmers’ preferences on improved cowpea varieties was carried out based on the data obtained from farmers’ participatory varietal selection and questionnaire survey undertaken in south-eastern Niger and north-central Burkina Faso. The grain yield was consistently the mos...


Ishikawa, H.Drabo, I.Boukar, O.Fatokun, C.Muranaka, S.[Comparative analysis of farmers' selection criteria for cowpea (Vigna unguiculata) varieties in Niger and Burkina Faso]Comparative analysis of farmers' selection criteria for cowpea (Vigna unguiculata) varieties in Niger and Burkina Faso

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