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著者 永易 大典|
発行日 2004-05-31
出版物タイトル 岡山医学会雑誌
116巻
1号
資料タイプ 学術雑誌論文
著者 横田 修| 寺田 整司| 石津 秀樹| 黒田 重利|
発行日 2004-09-30
出版物タイトル 岡山医学会雑誌
116巻
2号
資料タイプ 学術雑誌論文
著者 森本 太郎|
発行日 2005-09-01
出版物タイトル 岡山医学会雑誌
117巻
2号
資料タイプ 学術雑誌論文
著者 寳迫 睦美| 荻野 哲也| 岡田 茂|
発行日 2006-01-04
出版物タイトル 岡山医学会雑誌
117巻
3号
資料タイプ 学術雑誌論文
著者 野口 洋文| 松下 正之| 小林 直哉| Susan Bonner-Weir| 松井 秀樹| 田中 紀章| 田中 紘一| 松本 慎一|
発行日 2005-09-01
出版物タイトル 岡山医学会雑誌
117巻
2号
資料タイプ 学術雑誌論文
著者 品川 克至|
発行日 2008-08-01
出版物タイトル 岡山医学会雑誌
120巻
2号
資料タイプ 学術雑誌論文
著者 土井原 博義| 平 成人|
発行日 2008-01-04
出版物タイトル 岡山医学会雑誌
119巻
3号
資料タイプ 学術雑誌論文
著者 梶谷 昌史|
発行日 2008-01-04
出版物タイトル 岡山医学会雑誌
119巻
3号
資料タイプ 学術雑誌論文
著者 川北 祝史| 宮武 伸行| 瀧川 智子| 汪 達紘| 荻野 景規| 沼田 健之|
発行日 2007-09-03
出版物タイトル 岡山医学会雑誌
119巻
2号
資料タイプ 学術雑誌論文
著者 池口 豪泉|
発行日 2007-09-03
出版物タイトル 岡山医学会雑誌
119巻
2号
資料タイプ 学術雑誌論文
著者 小山 文彦|
発行日 2007-05-01
出版物タイトル 岡山医学会雑誌
119巻
1号
資料タイプ 学術雑誌論文
著者 木野村 賢| 杉山 斉| 槇野 博史|
発行日 2008-05-01
出版物タイトル 岡山医学会雑誌
120巻
1号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/fest/12833
フルテキストURL 13_085_095.pdf
著者 Khan Md. Harunor Rashid|
抄録 The application of basic slag (BS20 and BS30: basic slag 20 and 30 t ha-1) and aggregate size (A20 and A30: aggregate sizes of soil less than 20 and 20-30 mm) and different techniques (Tech 1: pyrite at top, jarosite at middle, and top soil at the bottom of ridge; Tech 2: top soil at top, pyrite at middle, and jarosite layer at the bottom of ridge) exerted significant (p≤0.05) positive effects on the growth and yield of eggplants cultivated under field condition and the effects varied not only with the kinds and amounts of amending materials but also with the techniques applied. The soil showed a silty clay loam texture, initial pH value of 4.1, pyrite content of 55 g kg-1, base saturation of 47%, ECe value of 3.6 dS m-1, high exchangeable Fe3+ and Al3+ contents of 1.47 and 5.29 cmolc kg-1, respectively. The pH value of the average soil data obtained from all the treatments during fruit set (95 days after transplantation) of eggplants was found to be increased in pH by 1.2 units higher compared with the control (i.e. initial pH value). The contents of P, K, Ca and Mg in the average soil data during fruit set were found to be increased (IOC = increased over control) by 41 to 127% IOC, while the contents of Al3+, Fe3+, Na+, Cl- and SO4 2- in the soil were found to be decreased by 28 to 92% IOC. The different treatments on eggplants grown under the modified-plain-ridge-ditch techniques in the Cheringa acid sulfate soil significantly (0≤0.05) increased the fresh yield of eggplants, and the increment was more pronounced with Tech 2. The maximum yield of 17.8 t ha-1 of eggplant for Tech 1 and 20.1 t ha-1 for Tech 2 were recorded by the application of BS30 in the soils of smaller aggregates (A20) at the ridges of Tech 2, followed by the A30BS30 treatments in both the techniques. The lowest quantity of 1.7 t ha-1 yield was recorded by the control treatment. The eggplants grown in the ridges of both the techniques exhibited the best responses on N, P, K, Ca and Mg contents in eggplant tissues during fruit set. As expected, the lowest contents of these nutrients in the eggplants were recorded in the control treatment. Sulfur content of the eggplants grown in the control plots was 3.6 g kg-1 and was in the range of adequate S content (4 g kg-1). However, the S contents in the eggplants grown in different treatments were significantly (p≤0.01) lower compared with the adequate level. The effectiveness of the treatments for the reclamation of the soil in relation to the growth of eggplants was: Tech 2 > Tech 1, BS30 > BS20, and A20 > A30. The results suggest that the physicochemical properties of the soil, and the growth, yield and nutrition of eggplants were strikingly improved by the application of flash leaching followed by BS30 and A20 treatments in the ridges of Tech 2, and are regarded as the best reclamation measures for this acid sulfate soil.
キーワード aggregate size basic slag growth-yield of eggplant modified-plain-ridge-ditch techniques reclamation and improvement of acid sulfate soil
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2008-03
13巻
1号
開始ページ 85
終了ページ 95
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002304770
JaLCDOI 10.18926/fest/11532
フルテキストURL 007_091_098.pdf
著者 Kamboh Maqsood Ahmed| 沖 陽子| 足立 忠司|
抄録 To evaluate hypoxic-salinity tolerance in wheat varieties, three Japanese varieties (Nourin-61, Chikugo Izumi and Shirasagi Komugi, relatively salt tolerant) and one Pakistani variety (Blue Silver, relatively salt sensitive) were grown under control, hypoxia, saline and hypoxic-saline conditions. The results suggested that relatively hypoxia and salt tolerant variety Nourin-61 was capable of producing the highest relative shoot yield under combined stress conditions. On the other hand, relatively sensitive variety to both hypoxia and salinity conditions, could not withstand harmful effects of combined stress. A more close correlation of plant growth characters between salinity and hypoxic-salinity than hypoxia and hypoxic-salinity indicated that varieties with higher salt tolerance would suffer less than varieties with higher hypoxia tolerance under combined stress conditions. And the balance of Na/K ratio in shoot tissues seems to be the major evaluation factor as the tolerant variety when salinity and hypoxia stress occur together.
キーワード hypoxia growth and ionic composition salinity salt tolerance wheat varieties
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2002-03-22
7巻
1号
開始ページ 91
終了ページ 98
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313980
JaLCDOI 10.18926/fest/11450
フルテキストURL 012_099_106.pdf
著者 Akhtar M. Shahbaz| 沖 陽子| 足立 忠司| Khan Md. H. R|
抄録 As a rule, ion uptake by plant cells and roots has features of saturation kinetics. This is in accordance with the assumption of control, as for example by the number of binding sites of ions (carriers, permeases), or the capacity of the proton efflux pumps, in the plasma membrane and tonoplast. Solute transport across membranes is carrier mediated transport. Protein macromolecules integrated into the membrane matrix seems to be the carriers. The carrier-mediated process is subject to kinetics assumig that the number of carriers (binding sites) in the membranes is limited. Kinetics of ion transport through a membrane is considered equivalent to relationship between an enzyme and its substrate. To obtain plants of different P status, two genetically diverse Brassica cultivars (P-tolerant 'Con-1' and P-sensitive 'Gold Rush') were grown for several weeks in nutrient solution culture media. P-uptake kinetics of the roots with intact plants in short-term experiments by monitoring P depletion in culture media revealed that P-tolerant 'Con-1' cultivar had favorable characteristics for P-uptake because of high I(max) or V(max) and low K(m) or 1/2 I(max) value than P-sensitive 'Gold Rush' cultivar. By plotting relative growth rate (RGR) and internal P-concentration (PNC) among P-tolerant (group I; Brown Raya, Con-1, Rainbow, Dunkled and Peela Raya) and P-sensitive (group II; Toria, Sultan Raya, B.S.A, Toria Selection and Gold Rush) cultivars revealed that group I cultivars showed large metabolic fraction and small structural fraction than group II cultivars which provided basis for P-stress tolerance.
キーワード Brassica Membrane binding sites Carrier-mediated transport I(max) or V(max), K(m) Pi-uptake rate RGR
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2007-03-15
12巻
1号
開始ページ 99
終了ページ 106
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002314027
JaLCDOI 10.18926/fest/11443
フルテキストURL 012_083_089.pdf
著者 Khan Md. H. R.| Rahman Md. K.| Rouf A. J. M. A.| Sattar G. S.| Akhtar M. S.| 沖 陽子| 足立 忠司|
抄録 The pH values in the profiles of unburnt (agricultural land) soils were found to increase as a function of soil depth and burning (400 to 1000℃) of the soils increased average pH by 8%. The average sand content of the burnt (soil around brick kilns) soil profiles was increased by 245%, while 39 and 36% decreased the silt and clay contents. Soil organic carbon (Corg) in the unburnt soils (0-20 cm) at different agro-ecological zones in the eastern region of Bangladesh ranged from 0.8 and 1.4%, whereas the content of microbial biomass carbon (Cmic) in the studied unburnt soils ranged between 5 and 7% of the total Corg, suggesting that the microbial biomass releasing considerable amounts of carbon in soil while burning of the soils drastically reduced this contribution to about 1%. The values of soil Cmic in the unburnt soils were approximately 2 to 6 times higher in the topsoils than the subsoils (20-60 cm). Variable rainfall, temperature and soil fertility had an overriding influence, which was reflected by the average minimum (276 μg g(-1)) and maximum (439) amounts of soil Cmic in Moulvibazar and Cox' Bazar sites. The Cmic decreased upon soil burning by 92% of its original average value (346 μg g(-1)) in the soil profile of up to 100 cm. Burning of topsoils strikingly increased the Corg/Cmic ratio by about 6 to 9 times, while reduced the C/N ratio by about 1.5 to 2.5 times. The average loss of Corg, available and total N due to burning of the soils were 66, 72 and 44% (increase over average content of unburnt soil: IOAC), respectively, which suggests that the burning of the soils offset the essential roles of soil microorganisms, reduced soil fertility and soil microbial contribution.
キーワード brick burning C/N ratio microbial biomass carbon soil organic carbon ratio of microbial biomass to organic carbon.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2007-03-15
12巻
1号
開始ページ 83
終了ページ 89
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313396
JaLCDOI 10.18926/fest/11440
タイトル(別表記) Measurement of thermal conductivity in the soils of Shirakami Mountains
フルテキストURL 011_089_092.pdf
著者 繁澤 和佳子| 諸泉 利嗣| 佐々木 長市|
抄録 Thermal conductivity of soils in Shirakami Mountains that was registered on UNESCO's World Natural Heritage in 1993 were measured using a twin transient-state cylindrical-probe method. The typical results were as follows:(1) Thermal conductivity of the soils in Shirakami Mountains increased according to an increase of soil water content, which was the same tendency as the other soils. (2) The thermal conductivity of the soils was about 0.2~0.3 Wm(-1)K(-1) smaller than volcanic ash soils, and it showed the same tendency as leaf mold.
キーワード Shirakami Mountains Thermal conductivity Twin transient-state cylindrical-probe method Volumetric water content
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2006-03-15
11巻
1号
開始ページ 89
終了ページ 92
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002313628
タイトル(別表記) オドントグロッサムリングスポットウイルスCy-1株RNAのゲノム構成および韓国株との比較
フルテキストURL 004_002_137_147.pdf
著者 池上 正人| 井上 成信|
抄録 The complete nucleotide sequince of the genomic RNA of odontoglossum ringspot virus Cy-1 strain(ORSV Cy-1) was determined using cloned cDNA. This sequence is 6611 nucleotides long containing four open reading frames, which correspond to 126 K,183 K,31 K and 18 K proteins. The 5' non-coding region of ORSV Cy-1 is 62 nucleotides. The ORFs encoded a 126 K polypeptide and a 183 K read-through product in which helicase-sequence and polymerase-sequence motifs are found. The5' non-coding region,which extends from bases 1 to 62 has 2G residues and the ribosome binding site (AUU). The3' non-coding region of ORSV Cy-1 composes 414 nucleotides in length. The genomic organization of ORSV Cy-1 is nearly identical to that of ORSV Korean strain(ORSV-K). However, the ORF encoding 183 K protein overlapes the ORF encoding 31 K protein in ORSV Cy-1, but not in ORSV-K. The 183 K read-through product of ORSV Cy-1 is 16 amino acids longer than that of ORSV-K. The homology of the nucleotide sequences of ORSV Cy-1 and ORSV-K is 96%.
キーワード Tobamovirus Odontoglossum ringspot virus Nucleotide sequence Genome organization
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
4巻
2号
開始ページ 137
終了ページ 147
ISSN 0916-930X
言語 英語
論文のバージョン publisher
タイトル(別表記) 高対塩性オオムギ品種の選抜
フルテキストURL 001_002_113_129.pdf
著者 Sopandie Didy| 武田 和義| 森次 益三| 川﨑 利夫|
抄録 In order to select higher salt tolerant cultivars of barley,solution culture experiments were carried out with 500 barley cultivars, which were preliminarily selected from 4581 cultivars by exposure to 1-2% of sodium chloride(MaCl) during the germinating stage. The concentrations of NaCl used in the experiments were 2 (control), 150 and 300 mM in nutrient solution.From the results of five solution culture experiments, each of which was carried out with about 100 cultivars, 105 cultivars of barley were selected as relatively about 100 cultivars. Then the final selection was carried out on those 105 cultivars, and it was found that more than 10 cultivars were highly salt tolerant, mainly based on the comparisons of shoot yields under the supply of 300 mM of NaCl.High salt tolerant barley cultivars mentioned above showed 42-86% and 17-30% of the control in shoot yield under the condition of 150 and 300 mM of NaCl, respectively.On three groups of barley,each having more than 10 cultivars, which are high, moderate and low in salt tolerance, ion contents of the plants were analyzed.The results suggest that potassium(K) uptake was comparatively larger in the high salt tolerant goup of barley cultivars,through there was a big variation in sodium(Na) and K contents even within the same group.
キーワード Barley Ion content Salt tolerance Sodium chloride Yield
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
1巻
2号
開始ページ 113
終了ページ 129
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| 野津 滋|
発行日 1993-04-25
出版物タイトル 日本機械学會論文集 B編
59巻
560号
資料タイプ 学術雑誌論文