检索结果-南通市图书馆

Socio-Economic and Scientific Impact Created by Whitefly-Transmitted,Plant-Virus Disease Resistant Tomato Varieties in Southern India

引用

Journal of Integrative Agriculture 2012年第2期11卷 337-345页

作者： John Colvin N Nagaraju Carlos Moreno-Leguizamon R M Govindappa T B Manjunatha Reddy S A Padmaja Neena Joshi peter M hanson Susan E Seal V Muniyappa Natural Resources Institute University of GreenwichChatham MaritimeKentME4 4TBUnited Kingdom University of Agricultural Sciences G.K.V.K.Bangalore 560065India AVRDC-The World Vegetable Center

Research carried out to assess the impact of open-pollinated Tomato leaf curl virus（ToLCV）-resistant tomatoes and hybrids on the livelihoods of resource-poor farmers in Southern India is described and *** high-yielding ToLCV-resistant tomato varieties were developed initially using conventional breeding and screening techniques involving inoculation by ToLCV-viruliferous whitefly,Bemisia *** 2003 and 2004,respectively,these varieties were released officially by the Karnataka State Seed Committee and the Indian Ministry of Agriculture through notification in the Gazette of *** 2003 to 2005,eleven seed companies bought breeder seed of the ToLCV-resistant varieties and used them to begin breeding F1 hybrids from ***-economic studies carried out to assess the benefits obtained from growing the ToLCV-resistant varieties found that farmers could gain up to 10 times the profit by growing the ToLCV-resistant varieties compared to the pre-existing ToLCV-susceptible *** of ToLCV-resistant tomatoes was also associated with reduced pesticide *** income from tomato sales was prioritised by farmers to pay for children＇s education,better nutrition and *** a joint effort with the commercial seed sector in India,a promotional field day was organised in *** well as the three ToLCV-resistant varieties,62 ToLCV-resistant hybrid tomatoes were exhibited during a farmer-field day by 17 commercial seed companies and several public *** with ToLCV-resistance are now grown widely in South India and seeds of the three open-pollinated varieties have been distributed to more than 12 *** 2007,a conservative estimate of the financial-benefit to cost of the research ratio was already more than 837：1.

关键词： Bemisia tabaci begomovirus international development tomato resistance Tomato leaf curl virus

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Recent Advances of Research on Tomato Late Blight, Bacterial Wilt and Begomovirus at AVRDC-The World Vegetable Center

Recent Advances of Research on Tomato Late Blight, Bacterial...

引用

中国植物病理学会2008年学术年会

作者： Tien-Cheng Wang Chien-Hua Chen Jaw-Fen Wang Fang-I Ho peter hanson Jen-Tzu Chen Wen-Shi Tsai Sylvia K.Green AVRDC-The World Vegetable Center

Late blight, caused by Phytophthora infestans, is one of the most destructive tomato diseases in Taiwan. To monitor change in the pathogen’s development, 706 isolates of P. infestans, including 40 isolates from potato, were collected in Taiwan from 1991 to 2007. These isolates were analyzed by phenotype and genotype characterization. A dramatic genetic shift occurred in the population of P infestans during Taiwan’s 1997-1998 cool growing season. Most isolates obtained after 1998 were non host-specific. Metalaxyl sensitivity of the isolates changed from sensitive/intermediate before 1997 to resistant after 1998. Isolates obtained before 1997 were all US-1 clonal lineage. During the 1997-1998 cool growing season, the US-11 clonal lineage appeared, possibly introduced on table potatoes imported from the USA. The new lineage spread rapidly and since 1999 has almost completely displaced the old population in Taiwan. All isolates were of the A1 mating type by pairing with P. parasitica. Ten tomato physiological races were identified. A total of 74 sources resistant to race T1,2 were identified from 1783 wild tomato accessions. Among them, accessions L3683, L3684, L3707 and L3708 were confirmed to have durable resistance in multilocation tests. Inheritance studies on CLN657 BCF-274-0-15-4×L3708 and Moneymaker×L3684 indicated the resistance is partially dominant and is inherited as a monogenic trait in both L3708 and L3684. L3708 was used as the donor parent and resistance was introgressed into tomato by backcrossing and selection with a race T1,2 isolate. Six BC3F6 inbred lines, SRE-2037B, C, E, G, H, I and five F populations (FMTT791-795) were selected carrying the Ph-3 gene and exhibited high resistance to race T1,2 with good horticultural traits. Bacterial wilt caused by Ralstonia solanacearum is a devastating disease of tomato production in warm and humid regions worldwide. R. solanacearum is a species complex. All the 158 strains isolated from various host plants in T

关键词： Solanum lycopercicum resistance breeding physiological race quantitative trait loci tomato-infecting begomoviruses

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Evaluating the quality of feed fats and oils and their effects on pig growth performance

引用

Journal of Animal Science and Biotechnology 2016年第3期7卷 330-340页

作者： Gerald C Shurson Brian J Kerr Andrea R hanson Department of Animal Science University of MinnesotaStPaulMN 55018USA usda-ars-national laboratory for agriculture and the environment Ames IA 50011USA svc-research St PeterMN 56082USA

Feed fats and oils provide significant amounts of energy to swine diets, but there is large variation in composition,quality, feeding value, and price among sources. Common measures of lipid quality include moisture, insolubles,and unsaponifiables（MIU）, titer, and free fatty acid content, but provide limited information regarding their feeding value. Lipid peroxidation is an important quality factor related to animal growth performance and health, but maximum tolerable limits in various lipids have not been established. Several indicative assays can be used to detect the presence of various peroxidation compounds, but due to the complexity and numerous compounds produced and degraded during peroxidation process, no single method can adequately determine the extent of peroxidation. Until further information is available, using a combination of peroxide value, thiobarbituric acid reactive substances（TBARS）, and anisidine value appear to provide a reasonable assessment of the extent of peroxidation in a lipid at a reasonable cost. However, fatty acid composition of the lipid being evaluated should be considered when selecting specific assays. Predictive tests can also be used to estimate the stability or susceptibility of lipids to peroxidation and include active oxygen method, oil stability index, and oxygen bomb method. A review of 16 published studies with pigs has shown an average decrease of 11.4% in growth rate, 8.8% feed intake fed isocaloric diets containing peroxidized lipids compared to diets containing unperoxidized lipids of the same ***, serum vitamin E content was generally reduced and serum TBARS content was increased when peroxidized lipids were fed in these studies, suggesting that feeding peroxidized lipids negatively affects metabolic oxidative status of pigs. However, it is unclear if antioxidants are useful additions to lipids to maintain optimal nutritional value, or if their addition to swine diets is beneficial in overcoming a met

关键词： Growth Indicative tests Lipids Metabolic oxidation Peroxidation Pigs

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Measurement of Treatment Effect in Reflux Laryngitis

引用

中国眼耳鼻喉科杂志 1998年第1期 68-72,67页

作者： Jack Jiang Namita Goyal David hanson Perry kamel peter Kahrilas

Larynyoseopic findings of patientsdiagnosed with reflux laryngitis Commonlyshow the presence of erythema of the pha-rynx and larynx which is often associatedwith edema, or accumulation of fluid in thetissues^8. Erythe... 详细信息

关键词：耳鼻喉科杂志中国

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Measurement of Treatment Effect in Reflux Laryngitis

引用

中国眼耳鼻喉科杂志 1997年第5期 196-197页

作者： Jack Jiang Namita Goyal David hanson Perry Kamel peter Kahrilas 张玉海

近日我们收到上海医科大学客座教授、美国西北大学医学院喉生理实验室主任JackJiang博士寄来这篇总结了他和几位著名专家近年对本专题研究成果的论著。文中介绍了以现代仪器和科学方法结合临床应用的研究结果,颇有新意,值得参阅,我们衷... 详细信息

近日我们收到上海医科大学客座教授、美国西北大学医学院喉生理实验室主任JackJiang博士寄来这篇总结了他和几位著名专家近年对本专题研究成果的论著。文中介绍了以现代仪器和科学方法结合临床应用的研究结果,颇有新意,值得参阅,我们衷心感谢作者对本刊的关心与支持。因该文寄来前,本刊此期已全部定稿送印刷厂,现特挤出版面,先登部分内容,以飨读者,余拟下期继续刊登。

关键词：受体阻滞剂红色指数频率微扰疗效评估返流性信噪比声带治疗后嗓音粗糙度

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

简化混合处理器应用开发 FPGA分担DSP功能降低构建成本

引用

电子测试（新电子） 2005年第2期 43-46页

作者： peter Baran Ralph Bodenner Joe hanson Be Here Technologies Inc Impulse Accelerated Technologies Inc Altera Inc

计算量大和对性能要求苛刻的高端 DSP 应用往往需要更大的处理能力,对此有许多软件/硬件方案可选用,包括 DSP 器件、专用ASIC 和 FPGA。这些可供选用的方案具有不同程度的性能优势,设计工程师必须权衡包括成本、功耗和设计时间在内的种... 详细信息

计算量大和对性能要求苛刻的高端 DSP 应用往往需要更大的处理能力,对此有许多软件/硬件方案可选用,包括 DSP 器件、专用ASIC 和 FPGA。这些可供选用的方案具有不同程度的性能优势,设计工程师必须权衡包括成本、功耗和设计时间在内的种种因素,然后才能决定适用的方案。

关键词： FPGA DSP器件高端 ASIC DSP应用功耗功能计时硬件软件

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

碧口群火山岩的时代——SHRIMP锆石U-Pb测年结果

引用

地质通报 2003年第6期22卷 456-458页

作者：闫全人王宗起闫臻 Andrew D.hanson peter A.Druschke 刘敦一宋彪简平王涛中国地质科学院地质研究所北京100037 中国科学院地质与地球物理研究所北京100029 Department of Geosciences University of Nevada Las Vegas

碧口群火山岩系是从原碧口系(叶连俊等,1944,后称碧口群)中解体出来的一个岩石单元(陶洪祥等,1993).

关键词：碧口群火山岩 SHRIMP锆石U—Pb测年地质时代扬子板块新元古代

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

扬子板块北缘碧口群火山岩的地球化学特征及其构造环境

引用

岩石矿物学杂志 2004年第1期23卷 1-11页

作者：闫全人 Andrew D.hanson 王宗起闫臻 peter A.Druschke 王涛刘敦一宋彪姜春发中国地质科学院地质研究所北京100037 Department of Geosciences University of Nevada 中国科学院地质与地球物理研究所北京100029

碧口群火山岩系中部的基性熔岩以拉斑系列为主 ,基性火山岩的Sr同位素初始比值和Nd同位素初始比值较低 ,分别为 0 .70 12 4 8～ 0 .70 4 4 13和 0 .5 110 80～ 0 .5 12 341,大部分样品的εNd(t) >0 ,表明母岩浆主要来自地幔源区。岩石... 详细信息

碧口群火山岩系中部的基性熔岩以拉斑系列为主 ,基性火山岩的Sr同位素初始比值和Nd同位素初始比值较低 ,分别为 0 .70 12 4 8～ 0 .70 4 4 13和 0 .5 110 80～ 0 .5 12 341,大部分样品的εNd(t) >0 ,表明母岩浆主要来自地幔源区。岩石显示明显的富2 0 7Pb及2 0 8Pb特征。在以部分熔融作用为主的演化过程中岩浆发生了一定程度的分异 ,LREE、大离子亲石元素等表现了从亏损到富集的变化特点。基性熔岩的稀土与微量元素表现出与俯冲碰撞型的弧区玄武岩相同的特点。分析表明 :碧口群火山岩系形成于岛弧环境 ,它与横丹群浊积岩系在扬子板块西北缘构筑了一个弧盆系统 ,其时代为新元古代。

关键词：地球化学 Sr-Nd—Pb同位素碧口群火山岩弧一盆系统扬子板块新元古代

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

抗炎介质表达缺陷参与中性粒细胞型支气管哮喘发病机制：半乳糖凝集素-3和白细胞介素-1RA／白细胞介素-1beta比例显著下降

引用

中华结核和呼吸杂志 2016年第11期39卷 898-898页

作者：高鹏 peter G Gibson Katherine J Baines Ian A Yang John W Upham Paul N Reynolds Sandra Hodge Alan L James Christine Jenkins Matthew J peters 张捷 Jodie L Simpson 吉林大学第二医院呼吸与危重症医学科长春130051 纽卡斯尔大学呼吸与睡眠研究中心悉尼Woolcock医学研究所昆士兰大学医科学校Prince Charles医院胸科布里斯本市Princess Alexandra医院呼吸科阿德莱德市Adelaide hanson研究所肺研究室 Westem Australia大学医疗与药理学校悉尼George全球健康研究所临床呼吸实验室 Macquarie大学医疗学校Concord General医院胸科

支气管哮喘（哮喘）是具有异质性的气道炎症性疾病，其主要特点表现为气道高反应和可变的气流受限。在哮喘的发病机制中，过敏原诱导的TH2淋巴细胞激活以及IL-5介导的嗜酸粒细胞渗出起到重要的作用。近年来发现超过50％的哮喘患者气道... 详细信息

支气管哮喘（哮喘）是具有异质性的气道炎症性疾病，其主要特点表现为气道高反应和可变的气流受限。在哮喘的发病机制中，过敏原诱导的TH2淋巴细胞激活以及IL-5介导的嗜酸粒细胞渗出起到重要的作用。近年来发现超过50％的哮喘患者气道的嗜酸粒细胞水平并不增高，并将这种亚型定义为非嗜酸粒细胞型哮喘。其中部分患者表现为气道中性粒细胞明显增高，称为中性粒细胞型哮喘。

关键词：白细胞介素-1RA 支气管哮喘中性粒细胞半乳糖凝集素-3 粒细胞型发病机制抗炎介质气道高反应

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：