河西地区连翘栽培技术研究   总被引：3，自引：0，他引：3  

牛云  张宏斌  杨秋香  陈丽英  闫克林 《甘肃农业大学学报》2003,38(2):234-237,253

通过对连翘形态特征、生活习性的观测以及对其进行无性和有性繁殖试验,总结出了一套适于该物种引种栽培的种植技术、整形修剪的田间管理技术和种子的采收加工技术。  相似文献   

云南大理洱海公园规划设计   总被引：1，自引：0，他引：1  

安静  张云  樊国盛 《西南林学院学报》2005,25(2):35-38

在白族园林特点、绿色浮岛特色、城市森林气势、园林景观美学价值和实用功能等5个设计理念指导下,将大理洱海公园规划为北片山林及滨海区、中部山体主景区、南部城市背景林区、东部健身休闲区4个分区,并对其进行了概念性设计,还对道路系统、灯具系统和建筑小品布局和规划特点进行了分析.  相似文献   

欧文氏杆菌CXJZ95-198基因组文库的构建   总被引：3，自引：0，他引：3  

张运雄  刘正初 《中国麻业》2006,28(4):176-181

采用改良鸟枪法构建了草本纤维精制高效菌种Erwinia carotovora CXJZ95-198的基因组文库，结合透明圈法，筛选到了8个甘露聚糖酶基因阳性克隆，并采用PCR方法对它们进行了分析鉴定，结果表明它们含有同一个甘露聚糖酶基因。  相似文献   

A survey of the aerobic bacteria in the feces of captive raptors   总被引：5，自引：0，他引：5  

R L Bangert  A C Ward  E H Stauber  B R Cho  P R Widders 《Avian diseases》1988,32(1):53-62

Feces of 47 captive raptors belonging to the order Falconiformes or Strigiformes were cultured for bacteria. Gram-negative bacteria, which were cultured from the feces of 45 of the 47 raptors, were the most common isolates. A wide variety of species were identified, including a newly described genus (Moellerella wisconsensis), two newly described species (Escherichia fergusonii and Proteus penneri), and a member of a newly described enteric group (CDC Enteric group 41). Additional organisms identified that have not been reported in previous bacteriological surveys of raptors were Salmonella heidelberg, Salmonella braenderup, Morganella morganii, Yersinia ruckeri, Serratia spp., and Kluyvera sp. Escherichia coli, isolated from the feces of 42 of the 47 raptors, was the most frequently recovered. Streptococcus faecalis, the second most common isolate, was cultured from 30 birds. Several differences were observed between fecal bacteria isolated from raptors fed commercially prepared chicken and those isolated from raptors not fed chicken. The most obvious difference was that birds fed chicken had more varied gram-negative bacterial species and in greater numbers per fecal sample. The potential for the isolated bacteria from raptors as pathogens in humans and avian species is discussed.  相似文献   

Hypervitaminosis A in the dog.     

D Y Cho  R A Frey  M M Guffy  H W Leipold 《American journal of veterinary research》1975,36(11):1597-1603

Toxic effects of excessive vitamin A and of excessive vitamin ADE were studied in 9 mixed Labrador Retriever pups. Clinical signs were loss of body weight, dullness, emaciation, roughened coat, evident pain in limb joints, and retarded growth. Radiologic changes were decreases in overall length and thickness of long bones, development of osteophytes, periosteal reaction, and premature closure of epiphyses. Pathologic changes were degenerative epiphyseal plate, hemorrhage and exostotic proliferation of periosteum, fatty liver, and microcalculi in kidney. Toxic effects of excessive vitamin A did not appear to be so great when it was administered as vitamin ADE.  相似文献   

Diagnosis of vibriosis in fish     

A I Yun  I N Shchukina 《Veterinariia》1979,(11):40-43

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Effects of IgY antibody on the development of Marek's disease.     

V Kermani-Arab  T Moll  B R Cho  W C Davis  Y S Lu 《Avian diseases》1976,20(1):32-41

The effects of passive immunization with immunoglobulin Y (IgY) on the pathogenesis of Marek's disease (MD) were examined in an experimental line of White Leghorn chickens highly susceptible to MD. Purified IgY with anti-MDV antibody activity, when injected into chicks, delayed the development of MDV viremia and lesions until 9 days postinoculation (PI) with Marek's disease virus (MDV). The blastogenic response of spleen cells to concanavallin-A was depressed at 6 days PI in the birds without passive immunization, whereas it was not totally depressed until 17 days in birds passively immunized with IgY anti-MDV antibody.  相似文献   

Ca~（2＋），CaM与花朵衰老的关系   总被引：2，自引：0，他引：2  

郑海金  陈鑫阳  杨振土  张昀  张微  张慧 《园艺学报》1994,(3)

对君子兰（ＣｌｉｖｉａｍｉｎｉａｔａＲｅｇ．）、牡丹（ＰａｅｏｎｉａｓｕｆｆｒｕｔｉｃｏｓａＡｎｄｒ．）、令箭荷花（ＮｏｐａｌｘｏｃｈｉａａｃｋｅｒｍａｎｎｉｉＨａｗ．）等三种不同寿命的花，在盛开与衰老时的可溶性总蛋白、内源总Ｃａ２＋水平以及总ＣａＭ含量进行了对比试验。结果表明，三种花衰老时可溶性总蛋白含量均下降，但长寿花比短寿、中寿花含有更高水平的蛋白质，并且水解速率较低；三者都有较高的内源总Ｃａ２＋及ＣａＭ水平。这些提示内源Ｃａ２＋、ＣａＭ水平与花的寿命有一定的相关性。  相似文献   

Effect of NH₄⁺ Nitrogen on Phosphorus Uptake by Canola, Lentils, Soybeans and Wheat     

U. R. Sangakkara  C. M. Cho 《Journal of Agronomy and Crop Science》1987,159(3):199-201

Phosphorus and ammonium nitrogen placed together has been shown to increase P uptake by crops, especially cereals, Thus, the objective of this study was to compare this effect on four crops grown in Manitoba. Plants harvested at flowering indicated greater P uptake in lentils, soybean and wheat, when P and NH₄⁺-N were placed on the same band. In contrast, canola did not respond to this treatment. Possible relationships of these ions are presented.  相似文献   

知识经济条件下学报编辑学者化的实现途径     

张云彬  史成颖 《安徽农业大学学报》2004,(2):141-144

:在知识经济条件下，学报编辑学者化应该被理解为学报编辑不断自身完善的一个过程和努力方向，学报编辑应该根据自身情况，走杂家型、专家型或编辑学家型的学者化道路。  相似文献