@article{oai:ir.kagoshima-u.ac.jp:00008254, author = {KATAYAMA, Tadao C. and CHING'ANG'A, H. M. and ILAILA, D. and SATOH, Hikaru}, journal = {南太平洋海域調査研究報告=Occasional papers}, month = {2016-10-28}, note = {During the trip from July to August in 1988 in Tanzania, 62 strains of wild rice species, i.e., 36 of Oryza longistaminata CHEV. et ROEHR., and 26 of Oryza punctata KOTSCHY, were collected, and many populations of them were observed. Their localities and habitats were reported in detail. Main locality names are as follows; Kibaha, Ifakara, Kyela, Ihahi, Mbarari, Shelui, Dodoma, Nzega, Kahama, Kigoma, Ujiji, Uvinza, Kasulu, Ibada, Mwanza, Mtwango, Kilombero, Bumbwi, Kasole, Kibirinzi, Ole. They have a creeping growth in pond, swamp, embankment, irrigation canal and small stream. From the analyses of unhusked grains, average values and the standard deviations of O.longistaminata in the whole strains were found to be 8.70mm±0.41, 2.34mm±0.17, 1.63mm±0.07, 3.77±0.24, 5.37±0.24 and 1.44±0.07 in length, width, thickness, ratios of length to width, of length to thickness and of width to thickness, respectively. In O.punctata, average values and those standard deviations in the whole strains were found to be 5.96mm±0.25, 2.29mm±0.11, 1.51mm±0.05, 2.62±0.15, 3.96±0.20 and 1.52±0.07 in the same order, respectively. It may be noticeable that the populations of W51, collected in Mahutansa, Ifakara, and W69, collected in Ibada, showed very large values both in length and width. Moreover, populations of W98 and W102 collected in Zanzibar showed particularly larger values both in length and width. In the analyses of the data obtained in the field surveies, morphological and genetical characters, ecotypic and varietal differentiations could be discussed in the future.}, pages = {38--62}, title = {Distribution and Grain Morphology of Wild Rice Collected in Tanzania, 1988}, volume = {18}, year = {} }