Koichi Futakuchi

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The study evaluated effects of drought on some agro-morphological traits of 60 rice genotypes comprising 54 introgression lines with their parents, IR 64 (Oryza sativa) and TOG 5681 (Oryza glaberrima) and four NERICA-L varieties developed from the same parents for comparison. The genotypes were subjected either to full irrigation from sowing to maturity(More)
within countries. For example, surveys in Benin showed large differences between consumer preferences in urban and rural areas (see Futakuchi et al., Chapter 25, this volume). The challenge to develop new rice varieties for such diversity is huge and compounded by the fact that training and recruitment of rice breeders has been neglected across the(More)
We evaluated Al-tolerance in 44 interspecific lines (32 upland and 12 lowland) developed from the crosses of Oryza sativa and O. glaberrima called New Rice for Africa (NERICA) with 2 O. glaberrima lines and 13 O. sativa varieties under hydroponic culture containing 0.15, 0.3, 0.6, and 1.2 mM Al (+Al) and 0 mM Al (−Al as a control). Ten upland and four(More)
In order to increase the quality of locally produced rice, the artisanal parboiling process in West and Central Africa was reconceptualized. A novel parboiling unit was constructed using stainless steel (Inox 304) and fitted directly on an improved stove made from fired bricks. The heat profile at different locations in the unit, the physicochemical(More)
Two cases of advanced carcinoma of gallbladder were treated by combination chemotherapy consisting of 5-FU, leucovorin and continuous administration of etoposide. One of the cases was a male 61 years old and another was a female 64 years old, both of whom were diagnosed as inoperable cases by imaging studies. When combination chemotherapy consisting of 5-FU(More)
Upland environments are situated at the high end of the toposequence, where rice depends solely on rainfall as the water table is out of the reach of rice roots for much of the growing season. At the lower end of the toposequence, rice plants can reach the water table or profit directly from flood water. Along the toposequence, interactions exist between(More)
Rice is the main crop produced in the Senegal River Valley under the semiarid Sahelian climate where water resource management is critical for the resource use sustainability. However, very limited data exit on rice water use and irrigation water requirement in this water scarcity environment under climate change conditions. Understanding crop water(More)
A method based on a multi-task Gaussian process using self-measuring similarity gave increased accuracy for imputing missing phenotypic data in multi-trait and multi-environment trials. Multi-environmental trial (MET) data often encounter the problem of missing data. Accurate imputation of missing data makes subsequent analysis more effective and the(More)