Papers - UDATSU Tetsuro
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Morphological Features of Silica Bodies from Motor Cells in Local and Modern Cultivated Rice (Oryza sativa L.) from China
Wang,C.,H. Fujiwara ,T. Udatsu ,L. Tang
Ethnobotany ( 6 ) 77 - 86 1994.12
Language：Japanese Publishing type：Research paper (scientific journal)
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中国・草鞋山遺跡における古代水田址調査（第２報）－遺跡土壌におけるプラント・オパール分析－
王才林,宇田津徹朗,藤原宏志,佐々木章,湯陵華
日本文化財科学会誌 ( 30 ) 37 - 52 1994.12
Language：Japanese Publishing type：Research paper (scientific journal)
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中国・草鞋山遺跡における古代水田址調査（第１報）－遺跡周辺部における水田址探査－
宇田津徹朗,王才林,柳沢一男,佐々木章,鄒江石,湯陵華,藤原宏志
日本文化財科学会誌 ( 30 ) 23 - 36 1994.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Morphological Features of Silica Bodies from Motor Cells in Local and Modern Cultivated Rice (Oryza sativa L.) from China
Wang,C, H. Fujiwara, T. Udatsu, L. Tang
Ethnobotany ( 6 ) 77 - 86 1994.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Morphological Features of Silica Bodies from Motor Cells in Local and Modern Cultivated Rice (Oryza sativa L.) from China
Wang,C, H. Fujiwara, T. Udatsu, L. Tang
Ethnobotany ( 6 ) 77 - 86 1994.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Application of the Discriminant Function to Subspecies of Rice (Oryza sativa) Using the Shape of Motor Cell Silica Body Reviewed
Udatsu, T. , and H. Fujiwara
Ethnobotany ( 5 ) 107 - 116 1993.12
Language：English Publishing type：Research paper (scientific journal)
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Application of the Discriminant Function to Subspecies of Rice (Oryza sativa) Using the Shape of Motor Cell Silica Body
Udatsu, T. , and H. Fujiwara
Ethnobotany ( 5 ) 107 - 116 1993.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Application of the Discriminant Function to Subspecies of Rice (Oryza sativa) Using the Shape of Motor Cell Silica Body
Udatsu, T, H. Fujiwara
Ethnobotany ( 5 ) 107 - 116 1993.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Application of the Discriminant Function to Subspecies of Rice (Oryza sativa) Using the Shape of Motor Cell Silica Body
Udatsu, T, H. Fujiwara
Ethnobotany ( 5 ) 107 - 116 1993.12
Language：Japanese Publishing type：Research paper (scientific journal)
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小型農機を基幹とした間作型作業体系について(第５報) －作業能率と作業経費－ Reviewed
古池壽夫,御手洗正文,宇田津徹朗
農作業研究 27 ( 1 ) 6 - 13 1992.12
Language：Japanese Publishing type：Research paper (scientific journal)
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小型農機を基幹とした間作型作業体系について(第５報) －作業能率と作業経費－
古池壽夫,御手洗正文,宇田津徹朗
農作業研究 27 ( 1 ) 6 - 13 1992.12
Language：Japanese Publishing type：Research paper (scientific journal)
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FURUCHI Toshio, MITARAI Masafumi, UDATSU Tetsurou
Japanese Journal of Farm Work Research 27 ( 1 ) 6 - 13 1992
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Farm Work Research
DOI： 10.4035/jsfwr.27.6
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吉野ケ里遺跡および桑田遺跡出土試料におけるイネ(O.satiua)のプラント・オパール形状特性
宇田津 徹朗, 藤原 宏志
日本作物学会九州支部会報 ( 58 ) 70 - 72 1991.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：日本作物学会
吉野ケ里遺跡,桑田遺跡においてプラント・オパール分析による水田針探査および検出されたプラント・オパールの形状解析を行った結果以下のことが明かとなった。
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吉野ケ里遺跡および桑田遺跡出土試料におけるイネ(O.sativa)のプラント・オパール形状特性
宇田津徹朗,藤原宏志
日本作物学会九州支部会報 58 70 - 72 1991.12
Language：Japanese Publishing type：Research paper (scientific journal)
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吉野ケ里遺跡および桑田遺跡出土試料におけるイネ(O.sativa)のプラント・オパール形状特性
宇田津徹朗,藤原宏志
日本作物学会九州支部会報 58 70 - 72 1991.12
Language：Japanese Publishing type：Research paper (scientific journal)
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乖離係数法(Coefficient of Estrangement)によるイネ(Oryza sativa)の亜種判別に関する検討 Reviewed
宇田津徹朗,藤原宏志
日本文化財科学会誌 ( 23 ) 41 - 50 1991.9
Language：Japanese Publishing type：Research paper (scientific journal)
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静岡平野南部における弥生時代後期（登呂層）水田址の検討 －登呂遺跡，有東梔子遺跡，鷹ノ道遺跡，有東遺跡を例として－ Reviewed
松田隆二,岡村 渉,藤原宏志,宇田津徹朗
日本文化財科学会誌 ( 23 ) 27 - 40 1991.9
Language：Japanese Publishing type：Research paper (scientific journal)
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乖離係数法(Coefficient of Estrangement)によるイネ(Oryza sativa)の亜種判別に関する検討
宇田津徹朗,藤原宏志
日本文化財科学会誌 ( 23 ) 41 - 50 1991.9
Language：Japanese Publishing type：Research paper (scientific journal)
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静岡平野南部における弥生時代後期（登呂層）水田址の検討 －登呂遺跡，有東梔子遺跡，鷹ノ道遺跡，有東遺跡を例として－
松田隆二,岡村 渉,藤原宏志,宇田津徹朗
日本文化財科学会誌 ( 23 ) 27 - 40 1991.9
Language：Japanese Publishing type：Research paper (scientific journal)
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Morphological Differences in Silica Body Derived from Motor Cell of indica and japonica in Rice
SATO Yo-Ichiro, FUJIWARA Hiroshi, UDATSU Teturo
Japanese journal of breeding 40 ( 4 ) 495 - 504 1990.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Breeding
Plant opal, a plant-derived silica body (SiO_2) excavated from archaeological sites, has been used to analyze various characteristics of past vegetation and crops relevant to the archaeological and palaeobotanical studies. We attempted to distinguish japonica varieties from indica ones based on the morphological features of the silica body extracted from living leaves of rice cultivars, so as to establish a methodology to determine whether plant opal was derived from indica or japonica varieties. In the present experiment, ninety-six cultivars classified into indica and japonica by SATO's discriminant function (Z_2, see SATO et al. 1986) were exarnined. Silica bodies were extracted from living leaves, and four dimensions shown in Fig. 1 (a, b, c and d) were measured for 50 samples of each cultivar. Silica bodies were classified into the α-type (smaller a, b and d, and larger b/a) and β-type (reverse of α-type, see Fig. 1 FUJIWARA, 1976). A preliminary test revealed that the silica bodies of typical indica showed the α-type, while those of typical japonica the β-type. To represent the varietal variaiton in the shape of the silica body, the discriminant function Z_1 was calculated as follows: Z_l=0.049 (a+b)-0.019 (c)+0.197 (d)-4.792 (b/a)-2.614