Proximal femoral epiphyseal separation in the dog     

R. LEE 《The Journal of small animal practice》1976,17(10):669-679

Twenty-two cases of displaced upper femoral epiphysis in the dog have been reviewed with regard to the incidence, aetiology, radiographic and histological changes. The majority of the cases followed a severe traumatic episode but a significant number were associated with relatively trivial injuries. On histological examination necrosis of the epiphysis was common but the majority showed a rapid revascularization unassociated with collapse and deformity. The prevalence of the Labrador Retriever in the cases presented is noted.  相似文献   

光与溫度对小麦品种抗条銹病性的影响     

陸师义  黎膏翔 《植物病理学报》1958,4(2):129-136

 試驗証明温度和光对小麦品种抗条銹病性的影响极大。由于小麦品种对条銹菌不稳定反应所造成生理鑑定小种的困难,基本上可通过严格控制温度和光获得解决。条锈菌生理小种的鑑定最好在15℃恆温和恆光的設备下进行。用日光灯为光源,光強度保持4,000 Lux,每日照射16小时即已足够使小麦品种正常发病。  相似文献   

梨树黑星病的发病及防治研究   总被引：5，自引：1，他引：4  

李知行 《植物病理学报》1959,5(2):65-78

 梨树黑星病是我国北方梨树最主要的病害。分布于我国东北、华北、西北与华东各梨产区;在东北地区自辽宁省至黑龙江省都有发生,但重点发生地区則有辽宁省的綏中、兴城、錦西、北鎮、义县和吉林省的延边自治区等。  相似文献   

小麦条绣病研究Ⅰ.小麦条锈菌的专化性研究     

陆师义  范桂芳  謝淑敏  吳維中  孔显良  楊作民  汪可宁  李瑞碧 《植物病理学报》1956,2(2):153-166

 禾谷类作物锈菌的专化性研究,首先在小麦秆锈病方面积累了丰富的资料;其次在小麦叶锈病、条锈病和燕麦冠锈病方面,也获得了不少的成就。  相似文献   

Transmissible gastroenteritis in pigs     

LEE KM  MORO M  BAKER JA 《Journal of the American Veterinary Medical Association》1954,124(925):294

  相似文献   

小麦銹病化学治疗的研究     

陸师义  范桂芳  潘仁瑞  蔡妙英  李万年  俞習明  陈延锺  李荣祥  罗振庄 《植物病理学报》1960,6(1):1-17

 治疗剂的应用是防治小麦锈病的新方向,已引起国际上普遍重视,并有不少成功的先例。  相似文献   

Relationship between immunity and serum-neutralization titers in chickens inoculated with three infectious bronchitis vaccines     

RAGGI LG  LEE GG 《American journal of veterinary research》1957,18(69):740-742

  相似文献   

Reabsorption of cobalt-60 from urine and bile samples of experimental dogs     

LEE CC  WOLTERINK LF 《Science (New York, N.Y.)》1956,123(3185):65

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Characteristics of glyphosate inhibition of growth in soybean and tobacco callus cultures   总被引：1，自引：0，他引：1  

T. T. LEE 《Weed Research》1980,20(6):365-369

Callus cultures or tobacco (Nicotiana tabacum L. cv. While Gold and N. glauca-langsdorffii, a tumour-forming amphidiploid hybrid) and soybean Glycine max L., cv. Chippewa) were used lo study the effect of glyphosate [N-(phosphonnmethyl) glycine) un growth and interactions with growth hormones. Glyphosate inhibited growth both in the dark and light but showed a greater toxicity in the dark. This was contrary to its effect on chlorophyll degradation which was accelerated by light. The inhibition of growth was not reversed by simultaneous addition of aromatic amino acids to the medium. Thus the results suggest a multiple glyphosate action. The tobacco callus tissue was more sensitive to glyphosate than the soybean callus tissue, confirming a difference in tolerance between plant species. Despite the inhibitory effect of glyphosate. the treated tissue revived after being transferred to a glyphosate-free medium. The glyphosate-induced growth inhibition in soybean and tumour-forming tobacco callus cultures also was reversible by high levels of indole-3-acetic acid (IAA), which itself was inhibitory Theglyphosate-IAA interaction in the tissues which were sensitive to IAA suggests that the inhibition of growth by glyphosate was related to auxin levels in these tissues.  相似文献   

韩国棕头鸦雀种群的卵色多态性及其比例的地理变化(英文)     

Jin-Won LEE 《中国鸟类》2012,3(4):312-319

了解一个物种种群内多态性的发生及其进化,是进化生物学的挑战之一。鸟类卵色的多态性是其中一个重要例子,分裂选择被认为是鸟类卵色多态性进化的机制。我们对韩国境内的棕头鸦雀(Paradoxornis webbianus)种群的卵色变化进行了调查,采用光纤光谱仪来确定纯蓝和纯白卵色的出现比率。结果表明,不同地理种群的鸦雀的蓝、白卵色的比率不同,高纬度地区蓝色卵的比例较少,而随着纬度南移,蓝色卵的比例逐渐增多。种群之间的卵色比率变化模式与种群内卵色的比率变化不同。本文探讨了棕头鸦雀卵色多态性进化的理论假设。  相似文献