検索結果 3287 件
| タイトル（別表記） | QTL Mapping for Water Sensitivity in Barley Seeds |
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| フルテキストURL | 006_001_021_028.pdf |
| 著者 | 岩佐 友彦| 高橋 秀和| 武田 和義| |
| 抄録 | Sensitivity to water condition during germination is an important character in malting barley because it affects malt poduction. Water sensitivity in malting barley is defined as the defference in germination percentage between the seeds in standard and excess-water conditions. Usually standard and excess-water condition means 4 and 8 ml water in a 90 mm perti dish, respectively. Takeda and Fukuyama (1983) examined more than 4,000 barley accessions and found 0～100% water sensitivity. This means complete to no suppression of germination by an excess-water condition. In this study, quantiative trait loci (QTL) analysis was applied to analize the inheritance of water sensitivity. Two sets of doubled haploid (DH) populations derived from Steptoe×Morex (S/M) and Harrington×TR306 (H/T) crosses,were grown in the experiment field of the Research Institute for Bioresources, Okayama University. Bulbosum method was adapted to develop DH lines (Chen and Hayes 1989). Water sensitivities of 150 (S/M) and (H/T) lines and their parents were evaluated using 50 seeds each and the germination test (25℃, 4 days) was repeated four times. Water sensitivity showed a large variation (Fig.1) and the heritability of the trait was 0.78 and 0.72 in S/M and H/T, respectively, indicating that about three-quarters of the phenotypic variance was genetic in origin. Three (S/M) and one (H/T) significant QTL were detected and 23% (S/M) and 25% (H/T) of the phenotypic variance was explained by the QTL. These QTL were located on chromosomes 2H,3H,6H and 7H (Table 1, Fig. 2). QTL relating to germination traits were lacated near the QTL controlling water sensitivity (Fig. 3). Interaction among the QTL was small (Table 2). Marker-assisted selection was effective (Table 3). |
| キーワード | barley water sensitivity QTL analysis |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1999 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 21 |
| 終了ページ | 28 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Population Increases of the Green Peach Aphid, Myzus persicae (Sulzer) and Cotton Aphid, Aphis gossypii Glover |
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| フルテキストURL | 004_001_059_065.pdf |
| 著者 | 村井 保| 積木 久明| |
| 抄録 | The reproduction of Myzus persicae (Sulz.) on raddish and Aphis gossypii Glover on cucumber was studied at different temperatures. The parameters of population growth in these aphids were calculated by the age-specific fecundities (mx) and survival rate (lx). The net reproductive rate (R0) and intrinsic rate of natural increase (r) of M. persicae were 61.50 and 0.21 at 15℃, and 60.60 and 0.33 at 20℃, respectively. The net reproductive rate (R0) and intrinsic rate of natural increase (r) of A. gossypii were 37.90 and 0.22 at 15℃, 45.70 and 0.32 at 20℃, and 40.60 and 0.42 at 25℃, respectively. |
| キーワード | Population growth Net reproductive rate Intrinsic rate Myzus persicae Aphis gossypii |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 59 |
| 終了ページ | 65 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Vertical Structure of Temperatures of Tree's Leaves and Gate Wall at Rashomon Doline |
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| フルテキストURL | 005_002_169_181.pdf |
| 著者 | 宮下 晃一| 米谷 俊彦| |
| 抄録 | Temperatures of tree's leaves and gate wall were measured in the summer of 1996 at doline. Diurnal fluctuations of leaf temperatures were greater, the higher the position of leaf in the doline, and they showed maximum temperatures later, the deeper the leaf position. The leaf temperature of trees growing in the first collapse doline was uniform in the horizontal direction and had a stable thermal layer. The difference between leaf temperatures at a depth of 20 m and 11 m was about 12℃ around noon. The leaf temperature was always higher at the upper part than at the lower part of the doline throughout the day. Daily fluctuation of wall temperature was small,compared with that of leaf temperature. The vertical profile of wall temperature was similar to that of leaf temperature. The warm water flowing down from the upper part of the doline influenced the soil temperature in the lower part of the doline. The thermal imagery elucidated the peculiar vertical structure of leaf and wall temperature formed in the summer at Rashomon doline. |
| キーワード | Rashomon Doline Leaf temperature Wall temperature Thermal image |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 169 |
| 終了ページ | 181 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | イネ幼植物から調整した細胞壁に含まれるペクチン質の性状 |
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| フルテキストURL | 005_002_135_144.pdf |
| 著者 | 今野 晴義| 積木 久明| 山崎 良樹| |
| 抄録 | Pectic polysacchasides from the starch-free cell wall preparation of rice (Oryza sativa) shoots have been extracted in sequence with cyclohexane-trans-1,2-diaminetetra-acetate(CDTA)and Na2CO3. The total amount of polysaccharides extracted with the agents was estimated as approximately 1% of the cell walls. The extracted polysaccharides were fractionated by DEAE-Trisacryl M ion-exchange chromatography yielding five fractions, and the monosaccharide composition and molecular mass were constructed from homogalacturonan and rhamnogalacturoanan containing the "hairy" region with galactosyl and arabinosyl side-chains. The solubilized pectic polysaccharides after treatment with two pectolytic enzymes accounted for 0.4～0.6% of the starch-free cell walls. |
| キーワード | Cell wall Oryza sativa Pectic polymer |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 135 |
| 終了ページ | 144 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Secretion of Defensive Substance by Carabidae and Brachinidae |
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| フルテキストURL | 004_001_009_023.pdf |
| 著者 | 兼久 勝夫| |
| 抄録 | The secretion of defensive substances by more than 250 species of carabid and brachinid beetles was investigated, and discussed from a phylogenetical viewpoint. The morphological of secretion glands and secreted components were identified in the genus level. Specific subgenus and species had peculiar characteristics. The pair of defensive organs consisted of many small synthetic lobes, large reservoirs, collecting ducts from lobes to reservoirs and secretion ducts from reservoirs. The pair dust opened at the last sternal intersegmental membrane. There was species specificity in the reservoir shape, synthetic lobe shape and entering site of the collecting ducts into reservoirs. The spherical shape lobes produced short chain fatty acids, the elongated shape lobes produced m-cresol and the thick board shape lobes produced benzoquinones. Two types of fatty acid-secreting beetles were found, one secreted formic acid, and the other mixed short chain fatty acids. These short chain fatty acids were metabolized from some amino acids, methacrylic acid was from valine; tiglic acid, α-ethyacrylic acid and angelic acid were from isoleucine; senecioic acid was from leucine and crotonic acid was from lysine. These unasaturated acids were sometimes detected with a trace amount of corresponding saturated acids. A few species secreted larger amounts of saturated acids with a trace amounts of unsaturated acids. Fatty acid composition was generally genus-specific. In a few cases, however, species-specific acid composition was also observed. m-Cresol-secreting beetles were observed only in Panagaeni and Chlaeniini except subgenus Chlaenius Chlaeniini except subgenus Chlaenius Chlaeniellus beetle. 1,4-Benzoquinone and 2-methyl-1,4-benzoquinone-secreting beetles were observed in subgenus C. Chlaeniellus. This beetle secreted these substances at body temperature from a reservoir with no sound. Brachinidae beetles, called bombardier beetles, have a pair of brownish reaction chamber connected with a reservoir. They sprayed the two benzoquinones at about 100℃ making sound. |
| キーワード | Defensive secreting substance Synthetic organ Carabidae Brachinidae Phylogenetic relation |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 9 |
| 終了ページ | 23 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Comparison of Resistance to Powdery Mildew between Wild Barley (Hordeum spontaneum C. Koch) |
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| フルテキストURL | 002_001_111_122.pdf |
| 著者 | 福山 利範| 部田 英雄| 佐藤 和広| 武田 和義| |
| 抄録 | A total of 162 strains of wild barley, Hordeum spontaneum C. Koch originating from Iran, Iraq, Turkey and Central Asia, were tested for resistance to powdery mildew. Then, the variation of resistance was compared with that of 145 local varieties of cultivated barley (Hordeum vulgare L.) originating from the same region of the wild barley collection. Ten different isolates of the parasite with Japanese origin were separately inoculated onto the first leaves of the host plants. The infection types were classified into the following: i, immunelike; R, highly resistant; M, moderately resistant; and S, highly susceptible. Resistant strains with i, R or M infection type were more frequent among wild barleys as compared with the cultivated forms. It is noteworthy that among these three resistant reactions,the M type was most frequent in the wild barley. To compare the degree of resistance to a total of 10 isolates, the resistance score was calculated in each of the wild and cultivated strains as the following: Scores 1,2,3 and 4 were given to the infection types of i, R, M and S, respectively, and the mean score for 10 isolates was calculated. Wild barley showed significantly low resistance scores as compared with those of cultivated barley. This was also confirmed by the cluster analysis; the cluster with more resistance to 10 isolates consisted of many strains of wild barley. Next, the resistance of wild barley was characterized by their broader effective ranges to different isolates. According to the x2 test for independence of reactions to two different isolates, the resistant factor(s) involved in wild barley was confirmed to be rather non-specific to the parasite. It was concluded that H. spontaneum may be useful genetic resources for the breeding of resistance to powdery mildew as well as local varieties. |
| キーワード | Hordeum spontaneum Barley Powdery mildew Resistance |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1994 |
| 巻 | 2巻 |
| 号 | 1号 |
| 開始ページ | 111 |
| 終了ページ | 122 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002313607 |
| タイトル（別表記） | ニンジン懸濁培養細胞の培養液に分泌される細胞外多糖成分 |
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| フルテキストURL | 001_002_091_103.pdf |
| 著者 | 今野 晴義| 山崎 良樹| 加藤 研治| |
| 抄録 | The extracellular polysaccharides have been fractionated from the culture medium of carrot(Daucus carota)cell culrures by precipitation with ethanol and by chromatography on DEAE-Sepharose CL-6B DEAE-Trisacryl M ion-exchange and Bio-Gel A-1.5m gel-permeation.The sugar composition and molecular mass of purified neutral and acidic polymers were determined. The neutral and acidic polymers were treated with purified endo-Β-glucanase from Trichoderma viride and pectic depolymerases,such as endo-pectate lyase from Erwinia carotovora Er. and endo-polygalacturonase from Kluyveromyces fragilis, respectively. The "hairly"(ramified)regions of acidic polymer were sequentially treated with purified α-L-arabinofuranosidase and β-galactosidase from carrot cell cultures, and were further hydrolyzed with 50mM trifluoroacetic for 1 hr at 100℃. From these results, the extracellular polysaccharides secreted from carrot cell cultures are charactarized. |
| キーワード | Carrot Cell suspension culture Cell wall Extracellular polysaccharides Pectic polymer |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1993 |
| 巻 | 1巻 |
| 号 | 2号 |
| 開始ページ | 91 |
| 終了ページ | 103 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| 著者 | 稲葉 英男| 武谷 健吾| |
|---|---|
| 発行日 | 1994-12-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 60巻 |
| 号 | 580号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲葉 英男| 佐藤 憲二| |
|---|---|
| 発行日 | 1994-12-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 60巻 |
| 号 | 580号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲葉 英男| 今井 誠士| |
|---|---|
| 発行日 | 1995-06-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 61巻 |
| 号 | 586号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 尾崎 公一| 稲葉 英男| |
|---|---|
| 発行日 | 1996-02-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 62巻 |
| 号 | 594号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲葉 英男| 佐藤 憲二| |
|---|---|
| 発行日 | 1997-03-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 63巻 |
| 号 | 607号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲葉 英男| 佐藤 憲二| |
|---|---|
| 発行日 | 1997-03-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 63巻 |
| 号 | 607号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲葉 英男| 堀部 明彦| 尾崎 公一| 山澤 隆行| |
|---|---|
| 発行日 | 1997-06-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 63巻 |
| 号 | 610号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲葉 英男| 堀部 明彦| 尾崎 公一| 横山 直樹| |
|---|---|
| 発行日 | 1998-11-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 64巻 |
| 号 | 627号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲葉 英男| 堀部 明彦| 尾崎 公一| 江本 和生| 垣内 博行| |
|---|---|
| 発行日 | 1999-07-25 |
| 出版物タイトル | 日本機械学會論文集 B編 |
| 巻 | 65巻 |
| 号 | 635号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 目瀬 守男| |
|---|---|
| 発行日 | 1998-02-01 |
| 出版物タイトル | 岡山大学農学部学術報告 |
| 巻 | 87巻 |
| 号 | 1号 |
| 資料タイプ | 紀要論文 |
| JaLCDOI | 10.18926/bgeou/10940 |
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| フルテキストURL | 132_0077_0089.pdf |
| 著者 | 井戸 和秀| 門松 良子| |
| 抄録 | シャボン玉遊びは、幼児が興味をもって取り組む遊びであるため、毎年ほとんどの園で行われている。しかし、幼児がもっている旺盛な知的好奇心を発揮させ、幼児の知的発達を促すような遊びになっているかは疑問である。そこで本研究では、M児の2年間（2年保育4歳児、5歳児の時）のシャボン玉遊びの指導を通して、幼児が何を学んでいくのかについて検討した。その結果、幼児はシャボン玉遊びの中で、科学的知識や道具の操作、仲間との共有など、多くのことを学んでいることを明らかにした。 |
| キーワード | シャボン玉遊び 知的好奇心 人間関係 遊びの自由 |
| 出版物タイトル | 岡山大学教育学部研究集録 |
| 発行日 | 2006-07-14 |
| 巻 | 132巻 |
| 開始ページ | 77 |
| 終了ページ | 89 |
| ISSN | 0471-4008 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002311213 |
| 著者 | 中尾 匡志| |
|---|---|
| 発行日 | 2006-03-24 |
| 出版物タイトル | |
| 資料タイプ | 学位論文 |
| 著者 | 上村 一雄| 澤田 竜子| 杉尾 剛| |
|---|---|
| 発行日 | 2002-02 |
| 出版物タイトル | 岡山大学農学部学術報告 |
| 巻 | 91巻 |
| 号 | 1号 |
| 資料タイプ | 紀要論文 |