@article{oai:ir.kagoshima-u.ac.jp:00012921,
 author = {KATAYAMA, Tadao C. and NAKAGAMA, Akinori and SUMI, Akio},
 journal = {南方海域調査研究報告=Occasional Papers},
 month = {2016-10-31},
 note = {During the trips of November in 1984 and of October in 1985 in Nigeria, 58 strains of wild rice, i.e., 34 of Oryza longistaminata CHEV. et ROEHR. and 24 strains of Oryza breviligulata CHEV. et ROEHR., were collected and many populations of them were observed. Their localities and habitats were reported in detail. Locality names are as follows; Zaria, Dikwa, Bida, Wushishi, Bin Yauri, Koko, Bunza, Yarma, Kende, Birnin Kebbi, Argungu, Sokoto, Rabah, Wurno, Goronyo, Tureta, Talata Mafara, Funtua, Pambeguwa, Makurdi, Chiramawa, Maiduguri, Zaga, Jengle.
Strains of both species were divided into two groups, i.e., Group A --- strains collected in 1984, Group B --- strains collected in 1985. In case of O.longistaminata, lengths were found to be 9.30mm, 8.69mm and 8.77mm in Group A, Group B and through the whole in average values, respectively. Widths were found to be 2.81mm, 2.45mm and 2.49mm in the same order, respectively. Thicknesses were found to be 1.82mm, 1.67mm and 1.69mm in the same order, respectively. Ratios of length to width were found to be 3.33, 3.57 and 3.54 in the same order, respectively. Ratios of
length to thickness were found to be 5.12, 5.22 and 5.21 in the same order, respectively.
Ratios of width to thickness were found to be 1.54, 1.47 and 1.48 in the same order, respectively. It may be noticeable that population of No.36, collected in pond near Dikwa, showed the large values in length, width and thickness.
In case of O.breviligulata, lengths were found to be 9.25mm, 9.44mm and 9.40mm in the same order, respectively. Widths were found to be 3.14mm, 3.14mm and 3.14mm in the same order, respectively. Thicknesses were found to be 2.12mm, 1.92mm and 1.96mm in the same order, respectively. Ratios of length to width were found to be 2.96, 3.05 and 3.03 in the same order, respectively. Ratios of length to thickness were found to be 4.38, 4.95 and 4.84 in the same order, respectively. Ratios of width to thickness were found to be 1.48, 1.62 and 1.59 in the same order, respectively. It may be noticeable that population of No.50, collected in pond near Yarma, showed the large
values in length, ratios of length to width and of length to thickness.
In the analyses of the data obtained in the field survey, morphological and genetical characters, ecotypic and varietal differentiations may be discussed in the future.},
 pages = {48--67},
 title = {Distribution and Some Morphological Characters of Wild Rice in Nigeria},
 volume = {10},
 year = {}
}