@article{oai:repository.naro.go.jp:00004739, author = {坂上, 潤一 and SAKAGAMI, Jun-Ichi and 城宝, 由紀子 and JOHO, Yukiko and CISSE, Amara and CISSE, Amara and GUYE, Tala and GUYE, Tala and GUEYE, Sauleymane and GUEYE, Sauleymane and DOUBOUYA, N’Konou and DOUBOUYA, N’Konou and SANDAKE, Mamadou Saliou and SANDAKE, Mamadou Saliou and 河野, 尚由 and KAWANO, Naoyoshi}, journal = {植物遺伝資源探索導入調査報告書, Annual report on exploration and introduction of plant genetic resources}, month = {Nov}, note = {Under the cooperation of the Institut Sénégalais de Recherche Agronomique(ISRA), Africa Rice Center(WARDA), and Institut de Recherche Agronomique de Guinée(IRAG), we explored African rice, Oryza glaberrima Steud. in Sénégal and Guinea. The total 67 cultivated and wild rice including 42 O. glaberrima were collected through the survey. Most of O. glaberrima were grown in the wetlands and flood-prone area. Through the fact-finding on the spot in farmer's fields, the collected O. glaberrima had elongation ability in wetland as well as tolerance of deepwater. O. glaberrima seems to adapt better in wetlands than in upland. In the area on tributary of Niger river in Guinea, farmers like to cultivate the O. glaberrima because of its shoot elongation ability and other biological resistance to disease and pest even if its lower productivity. On the other hand, a farmer knew cultivation selectively in most of O. glaberrima in Sénégal. However, most of farmers abandon the O. glaberrima because of their unfavorable taste, and new improved rice, O. sativa, has been introduced into the farmer's fields enthusiastically. Moreover, collected genetic resources were analyzed morphologically. Among cultivars, a variation of grains shape, color, paddy hair was small in O. glaberrima compared with collected O. sativa . In conclusion, O. glaberrima adapts itself in severe water stresses condition under lower input rice cultivation system in the regions.}, pages = {109--123}, title = {西アフリカ地域セネガルおよびギニアにおけるアフリカイネの共同探索調査(2006年)}, volume = {23}, year = {2007}, yomi = {サカガミ, ジュンイチ and ジョウホウ, ユキコ and カワノ, ナオヨシ} }