Chagyo Kenkyu Hokoku (Tea Research Journal)最新文献_第9页

Extracellular and Intracellular Resistances and Capacitance of Cell Membranes and Cell Wall of Tea Leaves during the Rolling Process 茶叶卷制过程中细胞膜和细胞壁的胞外和胞内电阻和电容

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2006-06-30 DOI: 10.5979/CHA.2006.29

Y. Mizukami, Y. Sawai, Y. Yamaguchi

引用次数: 0

Estimation of the Genome Size of Tea (Camellia sinensis), Camellia (C.japonica), and their Interspecific Hybrids by Flow Cytometry 用流式细胞术估计茶(Camellia sinensis)、山茶(c.a japonica)及其种间杂交种的基因组大小

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2006-06-30 DOI: 10.5979/CHA.2006.1

J. Tanaka, F. Taniguchi, N. Hirai, S. Yamaguchi

引用次数: 47

Estimation of Soil Nitrogen Mineralization in Andosol Tea Gardens by Kinetic Analysis 基于动力学分析的安多索尔茶园土壤氮矿化评价

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-12-31 DOI: 10.5979/CHA.2005.100_1

K. Uchimura, N. Miura

引用次数: 0

Nitrogenous environmental load in tea fields and fertilizer application technology for the reduction of the environmental load 茶田氮素环境负荷及降低环境负荷的施肥技术

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-12-31 DOI: 10.5979/CHA.2005.100_29

Kunihiko Nonada

{"title":"Nitrogenous environmental load in tea fields and fertilizer application technology for the reduction of the environmental load","authors":"Kunihiko Nonada","doi":"10.5979/CHA.2005.100_29","DOIUrl":"https://doi.org/10.5979/CHA.2005.100_29","url":null,"abstract":"2.1硝酸性窒素及び亜硝酸性窒素による水質汚染水道水質基準としての硝酸性窒素及び亜硝酸性窒素については従来より10mg/Lと定められている。硝酸性窒素及び亜硝酸性窒素による健康影響としては,メトヘモグロビン血症が知られている。硝酸性窒素は本来,毒性がないが,人の消化器系において条件がそろうと一部が亜硝酸性窒素に還元され,毒性を持つようになる。メトヘモグロビン血症は,多量の亜硝酸性窒素を体内に吸収した場合に起こるものであり,チアノーゼ症状の原因となる。生後間もない乳児が影響を受けやすく, 地下水への依存度の高い欧米では障害発生や死亡例が報告されている。わが国においても 1996年,メトヘモグロビン血症の事例が報告された。また,硝酸塩が体内にはいると,発ガン性が疑われているニトロソアミンを生成することも報告されている。硝酸性窒素及び亜硝酸性窒素は1993年に水質汚濁防止に係る要監視項目となり,1998年には人の健康の保護に関する環境基準に追加された。公共用水や地下水中に含まれる硝酸性窒素及び亜硝酸性窒素は10mg/L以下に維持されることが望ましいという内容であり, 行政上の政策目標である。一方,2000年に策定された「食料・農業・農村基本計画」においても,環境と調和のとれた農業生産の確保の観点が一つの柱とされている。公共用水域及び地下水における硝酸性窒素及び亜硝酸性窒素の主な汚染原因としては, 工場等からの排水,一般家庭からの生活排水, 農用地への施肥,家畜排せつ物が挙げられる。硝酸性窒素の環境基準が設定されたことを受","PeriodicalId":201655,"journal":{"name":"Chagyo Kenkyu Hokoku (Tea Research Journal)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123483989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Susceptibility of Pseudomonas syringae pv. theae to Copper Bactericide 丁香假单胞菌的药敏。铜杀菌剂

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-12-31 DOI: 10.5979/CHA.2005.100_11

T. Tomihama

引用次数: 1

Electrical Impedance Analysis of Tea Leaves in the Steaming Process 茶叶蒸煮过程的电阻抗分析

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-12-31 DOI: 10.5979/CHA.2005.100_21

Y. Mizukami, D. Miyama, Y. Sawai, Y. Yamaguchi

{"title":"Electrical Impedance Analysis of Tea Leaves in the Steaming Process","authors":"Y. Mizukami, D. Miyama, Y. Sawai, Y. Yamaguchi","doi":"10.5979/CHA.2005.100_21","DOIUrl":"https://doi.org/10.5979/CHA.2005.100_21","url":null,"abstract":"Frequency-dependent electrical impedance spectroscopy has been used to characterize the intracellular and extracellular resistances as well as the capacitance of the cell wall and cell membranes of tea leaves in the steaming process. The intracellular resistance of the steamed leaves decreased by approximately 90% as compared to that of fresh leaves. Water in the cytoplasm was transformed into mobile water by the steaming treatment. This is the main factor that causes the decrease in the intracellular resistance. However, when the treatment duration exceeded 20 s, there was a negligible influence on the change in the resistance. Therefore, this organized behavior was considered to occur within 20 s. On the other hand, since the indissoluble pectin that constitutes the cell wall became water soluble by the steaming treatment, positive ions accumulated on the cell wall at the beginning of the treatment. Therefore, the capacitance increased temporarily due to the treatment. In addition, when the steaming treatment was prolonged, the capacitance and extracellular resistance decreased due to deterioration and shrinkage of cellular tissues. Electrochemical impedance analysis can be employed to investigate the organized behaviors that occur in tea leaves in the steaming treatment. Therefore, a numerical method to evaluate the steaming . treatment can be established using electrochemical impedance analysis.","PeriodicalId":201655,"journal":{"name":"Chagyo Kenkyu Hokoku (Tea Research Journal)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123599748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Accuracy of SPS-GPS and Application to Tea Field Management SPS-GPS精度及其在茶叶田间管理中的应用

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-06-30 DOI: 10.5979/CHA.2005.1

T. Araki, D. Miyama, M. Miyazaki

引用次数: 0

Practicality of automatic recording electrocution pheromone trap "Moth-Counter" in forecasting of the smaller tea tortrix, Adoxophyes honmai Yasuda 自动记录电致信息素诱捕器“灭蛾器”预测小茶蛾的实用性

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-06-30 DOI: 10.5979/CHA.2005.21

Yasushi Sato, M. Takeda, Hatsuo Onoda, Hideaki Takaoka

{"title":"Practicality of automatic recording electrocution pheromone trap \"Moth-Counter\" in forecasting of the smaller tea tortrix, Adoxophyes honmai Yasuda","authors":"Yasushi Sato, M. Takeda, Hatsuo Onoda, Hideaki Takaoka","doi":"10.5979/CHA.2005.21","DOIUrl":"https://doi.org/10.5979/CHA.2005.21","url":null,"abstract":"電撃型自動計数フェロモントラップ「モスカウンター」のチャノコカクモンハマキ発生予察調査における実用性を明らかにするため,野外茶園で評価試験を行った。本装置は,2年間の連続調査期間を通じて故障なく正常に稼動し,誘殺数と自動計数値はほとんど一致した。計数誤差は最大でも±5%程度で,計数精度は高かった。またモスカウンターによる誘殺消長は,対照とした水盤式フェロモントラップによる消長とよく一致し,本装置が対照トラップの代替トラップとして利用可能なことを示した。さらに個別予察におけるモスカウンターの実用性を判断するため,防除適期決定の基準となる発蛾ピーク日を指標に,本装置と対照トラップを比較した。6年間5か所39発生期におけるのべ84ピークについて比較したところ,モスカウンターと対照トラップで調査した発蛾ピーク日の偏差は,最大で―4日,全体の83.3%が偏差±1日以内に収まり,個別予察においても本装置が対照トラップの代替トラップとなり得ることを示した。以上のことから,チャノコカクモンハマキの発生予察調査におけるモスカウンターの実用性は高いと判断した。","PeriodicalId":201655,"journal":{"name":"Chagyo Kenkyu Hokoku (Tea Research Journal)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123698729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Changes in Metal Contents during the Manufacturing Process of Sencha and in Different Positions of the Tea Shoot 煎茶制作过程中及茶苗不同部位金属含量的变化

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-06-30 DOI: 10.5979/CHA.2005.31

K. Kohata, N. Hayashi, Eiji Ohtake, Shukou Kuwabara, Tomomi Ujihara, N. Teshima, Shino Kuwagata, T. Odashima

{"title":"Changes in Metal Contents during the Manufacturing Process of Sencha and in Different Positions of the Tea Shoot","authors":"K. Kohata, N. Hayashi, Eiji Ohtake, Shukou Kuwabara, Tomomi Ujihara, N. Teshima, Shino Kuwagata, T. Odashima","doi":"10.5979/CHA.2005.31","DOIUrl":"https://doi.org/10.5979/CHA.2005.31","url":null,"abstract":"Changes in metal contents during the manufacturing process of Sencha and in different positions of the tea shoot were investigated using inductively coupled plasma (ICP)-mass spectrometry (MS) and ICP-AES (atomic optical emission spectrometry) methods. The contents of Ba, Cu, Fe, Ni and Zn increased after the primary drying process, while that of Sr decreased after the final rolling process. Only Zn showed significant difference at 5% level between the contents of fresh leaves and crude tea, suggesting that the increase of Zn should be taken into consideration for the differentiation of the geographic origin of the tea. The contents of Al, Ba, Ca, Co, Mn and Sr were richer in the lower position of the tea shoot, while those of Cu, Fe, Mg, Ni, P and Zn were richer in the upper position of the tea shoot. The contents of K and Rb hardly changed regardless of the position. The stem showed a unique metal composition compared to that of the leaf. This result suggests that a tea sample processed from the stem should not be used for the differentiation of the geographic origin of the tea.","PeriodicalId":201655,"journal":{"name":"Chagyo Kenkyu Hokoku (Tea Research Journal)","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120956334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Walking-type Fertilizer Applicator with Velocity Interlocking Device of Discharge 带出料速度联锁装置的行走式施肥机的研制

Chagyo Kenkyu Hokoku (Tea Research Journal) Pub Date : 2005-06-30 DOI: 10.5979/CHA.2005.11

D. Miyama, T. Araki, M. Miyazaki, Kunimichi Higashi

引用次数: 0