Papers - UDATSU Tetsuro
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イネの機動細胞にみられる珪酸体の形状の遺伝的解析
王才林, 宇田津徹朗, 藤原宏志
育種学雑誌 48 ( 2 ) 163 - 168 1998.6
Language：Japanese Publishing type：Research paper (scientific journal)
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Genetic analysis of the morphology of silica bodies from motor cells in rice (Oryza sativa L.)
Wang, C, Udatsu, T, Fujiwara, H
Breeding Science 48 ( 2 ) 163 - 168 1998.6
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Breeding Science
Genetic analysis of the morphology of silica bodies from motor cells in rice (Oryza sativa L.) was conducted by examining an F 2 population and a set of 3 x 5 NC II diallel crosses. Segregation for the four morphological characters-vertical length, horizontal length, lateral length and shape coefficient (b/a)- of silica bodies in the F 2 population showed a countinous and a wide distribution exceeding the ranges of the two parents (Fig. 2), suggesting that the morphological characters of silica bodies were quantitative and controlled by several genes. In the NC II diallel analysis, the heterogeneity of W'r+1/2Vr between arrays was not significant for all the morphological characters but b/a, and the heterogeneity of W'r-1/2Vr was not observed for all the characters tested (Table 4). The regression coefficients of W'r on Vr were nearly 0.5 but significantly different from zero (Table 5), indicating that the shape of the silica bodies was controlled by an additive-dominance genetic system. The heritabilities in a broad sense for the four characters were in the range of 0.43-0.73 and those in a narrow sense in the range of 0.29-0.54 (Table 6).
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中国的水田遺構探査
宇田津徹朗,湯陵華,王才林
農業考古 49 138 - 155 1998.3
Language：Chinese Publishing type：Research paper (scientific journal)
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中国的水田遺構探査
宇田津徹朗,湯陵華,王才林
農業考古 49 138 - 155 1998.3
Language：Japanese Publishing type：Research paper (scientific journal)
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Wang C., Udatsu T., Tang L., Zhou J., Zheng Y., Sasaki A., Yanagisawa K., Fujiwara H.
Breeding Science 48 ( 4 ) 387 - 394 1998
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Breeding Science
A joint research project has been carried out between Japan and China on the origin and spread of rice in the Middle and Lower Changjiang River Valley of China by plant opal analysis since 1992. The excavation of ancient paddy fields near the Caoxieshan site in Wu County, Jiangsu Province was conducted. Ten accumulated soil layers with each cultural period property were confirmed, and the layers from the fifth layer to the tenth layer were identified as belonging to the Middle Majiabang period (B.P.5900-6200). And the existence of paddy fields in soil layers of Chunqiu, Songze and Majiabang period were identified by plant opal analysis. Moreover, more than forty paddy field sites were excavated under the ninth or tenth layer. This paper reports on the results of quantitative and morphological analysis of plant opals on soil samples collected from nineteen paddy filed sites and ten soil layers at the Caoxieshan site in 1994 and 1995, and discusses the cultivar group and its historical change of ancient rice cultivated near the Caoxieshan site. The quantitative analysis of plant opals detected large amounts of rice plant opals from motor cell silica bodies in all the samples, suggesting that the rice cultivation near the Caoxieshan site began from the middle Majiabang period and continued up to the present. Moreover, the rapid increase of rice leaf weight inferred from plant opals in soil layers of middle Majiabang period suggested that rice cultivation had been prevalently practised during this period. The morphological analysis of plant opals suggested that the plant opals from the soil layers of middle Majiabang period were derived from japonica rice. Compared to the motor cell silica bodies from Chinese native Keng (correspond to japonica) rice, the plant opals had a larger value in b/a as well as in vertical length and lateral length, and the discriminant scores were more like those from typical japonica rice. A comparison of the discriminant scores of plant opals from the ten soil layers showed a slowly decreasing trend from the lower layers to the upper ones. And the scores were especially small for the soil layers above the third one (the Song period), suggesting that it is highly possible that the indica rice would be probably cultivated from Song period near the Caoxieshan site.
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イネ機動細胞珪酸体形状におよぼす栽培環境の影響について
王才林,宇田津徹朗,藤原宏志
宮崎大学農学部研究報告 44 ( 1・2 ) 19 - 26 1997.12
Language：Japanese Publishing type：Research paper (bulletin of university, research institution)
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Wang Cailin, Udatsu Tetsuro, Fujiwara Hiroshi
Bulletin of the Faculty of Agriculture, Miyazaki University 44 ( 1 ) 19 - 26 1997.12
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Miyazaki University
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イネ機動細胞珪酸体形状におよぼす栽培環境の影響について
王才林,宇田津徹朗,藤原宏志
宮崎大学農学部研究報告 44 ( 1・2 ) 19 - 26 1997.12
Language：Japanese Publishing type：Research paper (scientific journal)
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中国イネの亜種判別における機動細胞珪酸体形状と籾の形態・生理形質の関係について Reviewed
王才林,宇田津徹朗,藤原宏志,鄭雲飛
日本文化財科学会誌 ( 34 ) 53 - 71 1996.12
Language：Japanese Publishing type：Research paper (scientific journal)
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中国イネの亜種判別における機動細胞珪酸体形状と籾の形態・生理形質の関係について
王才林,宇田津徹朗,藤原宏志,鄭雲飛
日本文化財科学会誌 ( 34 ) 53 - 71 1996.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Wang Cailin, Udatsu Tetsuro, Fuiiwara Hiroshi
Breeding science 46 ( 1 ) 61 - 66 1996.3
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Breeding
Methods of discrimination of indica and japonica rice based on the shape of silica body from motor cells in the leaf blade and on morphological and physiological characters of grain were compared, and their relationship was investigated. Fifty Chinese native and im-proved rice varieties (25 Hsien and 25 Keng) were used. Four morphological characters of silica body from the motor cells (vertical length, VL; horizontal length, HL; Iateral length, LL and shape coefficient b/a) (Fig. 1) , grain shape (length, L; width, W and their ratio L/W) , apiculus hair length (AH) , phenol reaction of the hull (PR) and potassium chlorate (KCI03) resist-ance of seedlings (KC) based on injury scores (O to 3) were analysed. Based on the above characters of indica and japonica cultivars defined by Sato's discriminant function (Z (SD) =PR+1.313KC-0.82AH-1.251)
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Principal Component Analysis of Four Morphological Characters of Silica Bodies from Motor Cells in Rice (Oryza sativa L.) Reviewed
Wang，C.,H. Fujiwara ,T. Udatsu ,Y. Sato
Ethnobotany ( 7 ) 17 - 28 1995.12
Language：English Publishing type：Research paper (scientific journal)
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Principal Component Analysis of Four Morphological Characters of Silica Bodies from Motor Cells in Rice (Oryza sativa L.)
Wang,C.,H. Fujiwara ,T. Udatsu ,Y. Sato
Ethnobotany ( 7 ) 17 - 28 1995.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Principal Component Analysis of Four Morphological Characters of Silica Bodies from Motor Cells in Rice (Oryza sativa L.)
Wang,C, H. Fujiwara, T. Udatsu, Y. Sato
Ethnobotany ( 7 ) 17 - 28 1995.12
Language：Japanese Publishing type：Research paper (scientific journal)
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Principal Component Analysis of Four Morphological Characters of Silica Bodies from Motor Cells in Rice (Oryza sativa L.)
Wang,C, H. Fujiwara, T. Udatsu, Y. Sato
Ethnobotany ( 7 ) 17 - 28 1995.12
Language：Japanese Publishing type：Research paper (scientific journal)
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新石器時代土器胎土に含まれた稲のプランとオパール Reviewed
郭鍾喆,藤原宏志,宇田津徹朗,柳沢一男
韓国考古学報 ( 32 ) 149 - 162 1995.5
Publishing type：Research paper (scientific journal)
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新石器時代土器胎土に含まれた稲のプランとオパール
郭鍾喆,藤原宏志,宇田津徹朗,柳沢一男
韓国考古学報 ( 32 ) 149 - 162 1995.5
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－ Reviewed
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 Reviewed
Wang，C.,H. Fujiwara ,T. Udatsu ,L. Tang
Ethnobotany ( 6 ) 77 - 86 1994.12
Language：English 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－ Reviewed
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)