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1.
以色列野生燕麦物候及农艺性状与起源生态地理因素的相关性 总被引:1,自引:0,他引:1
为探讨起源地生态地理因素对野生燕麦物候期和农艺性状的影响,对种植于成都金堂试验地的源自以色列不同地区7个野生燕麦群体70个基因型的19个物候和农艺性状进行了测定,并用单因素方差(One-Way ANOVA)、相关性网络(Correlation-based network analysis,CNA)、斯皮尔曼秩相关(Spearmanp’s Rho Correlation)等方法进行数据分析。结果表明,不同群体和基因型间的物候期和农艺性状差异明显。其中,全生育期最短的群体是Sede Boqer,来自该群体的SB14-07的生育期仅170.0d;最大单株生物产量出现在Caesarea群体中,达268.1g;而千粒重最大的是来自Tabigha群体的Tg-09,为28.8g。起源地水分、温度、地理等因素对野生燕麦的物候及农艺性状起不同程度的关键性影响。以上结果说明,野生燕麦物候及农艺性状差异的实质是其长期与环境相互作用,在自然选择压力下进化形成的遗传多样性。 相似文献
2.
Impact of Rabies Vaccination History on Attainment of an Adequate Antibody Titre Among Dogs Tested for International Travel Certification,Israel – 2010–2014 下载免费PDF全文
B. Yakobson N. Taylor N. Dveres S. Rotblat Ż. Spero E. W. Lankau J. Maki 《Zoonoses and public health》2017,64(4):281-289
Rabies is endemic in wildlife or domestic carnivore populations globally. Infection of domestic dogs is of particular concern in many areas. In regions where domestic animals are at risk of exposure to rabies virus, dogs should be routinely vaccinated against rabies to protect both pet and human populations. Many countries require demonstration of an adequate level of serum rabies neutralizing antibodies to permit entry of dogs during international travel. We analysed rabies titres of dogs seeking travel certification in Israel to assess demographic and vaccine history factors associated with antibody titres below the acceptable threshold for travel certification. Having received only one previous rabies vaccination and a longer duration since the most recent vaccination was received were primary risk factors for not achieving an adequate rabies virus neutralizing antibody titre for travel certification. These risk factors had stronger effects in younger animals, but were consistent for dogs of all ages. In particular, these findings reiterate the importance of administering at least two rabies vaccinations (the primo vaccination and subsequent booster) to ensure population‐level protection against rabies in dogs globally. 相似文献
3.
以色列自20世纪40年代以来,通过大力发展和推广农业现代化技术,在水资源匮乏、人均耕地面积小的客观条件下,实现了农业的飞速发展,取得了巨大成果.我国与以色列在农业发展上有很多相似之处,在农业发展模式上要学习借鉴以色列的发展经验,通过重视农业教育以及农业适用技术的研发,提高科技对农业发展贡献率,走出一条可持续发展的农业现代化道路. 相似文献
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Development of inland aquaculture in arid climates: water utilization strategies applied in Israel 总被引:1,自引:0,他引:1
D. Mires 《Fisheries Management and Ecology》2000,7(1-2):189-195
Israel has a temperate climate with marked differences between the northern and southern regions. Rainfall ranges between 250 and 600 mm year−1 in the former and between only 25 and 200 mm year−1 in the latter. During the last 30 years, water consumption has increased markedly in all sectors. Although a water allocation for inland aquaculture is made, in most cases it is given the lowest priority, and aquaculturists have learned to contend with difficulties, and thrive on brackish water sources not fit for human consumption or agricultural crops. Since most water sources are already fully exploited, further development of all sectors will depend on their respective capacity to use recycled city water, desalinated brackish or sea water, or recycled pond water. In this respect, inland aquaculture is handicapped by public prejudices which will not allow the use of water from the first source and farms are still not able to cope with the cost of the second. Therefore, further development of inland aquaculture will depend on the capacity of farmers to use sea water, and to recycle pond water time and again to produce more fish with less (inland) water. Various strategies have already been developed in Israel and new ones are under study. These include water harvesting in dual-purpose reservoirs, recycling of pond water from one year to another, development of intensive flow-through systems based on recycled pond water and colleagues based on biofiltration. 相似文献
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黄岭峻 《湖南农业大学学报(自然科学版)》2003,(1)
作为一个只有600万人口的小国,以色列从事中国近代史研究的学者有近20人。其研究中心集中在希伯莱大学与特拉维夫大学,较有成绩的学者有以斯拉尼教授和夏伊教授。尽管如此,以色列的中国近代史研究过分注重实用和深受西方影响,则限制了其进一步发展。 相似文献
8.
A survey for the prevalence of antibodies to Hepatozoon canis and for intraneutrophilic H. canis gametocytes in the peripheral blood neutrophils of dogs in Israel showed that 33.1% were seropositive, while only 1% of the dogs sampled had detectable parasites in their blood smears. Exposure to H. canis is widespread but it appears that most infected dogs undergo a subclinical infection and only a small proportion develop clinical disease.Abbreviations IFAT
indirect fluorescent antibody test 相似文献
9.
Summary Diverse landraces of wheat, collected from the semi-arid (150 to 250 mm of total annual rainfall) Northern Negev desert in Israel were considered as a potential genetic resource of drought resistance for wheat breeding. These materials were therefore evaluated for their reponses to drought stress in agronomical and physiological terms. Up to 68 landraces, comprising of Triticum durum, T. aestivum, and T. compactum were tested in two field drought environments, in one favourable field environment, under post-anthesis chemical plant desiccation which revealed the capacity for grain filling from mobilized stem reserves, under a controlled drought stress in a rainout shelter and in the growth chamber under polyethylene glycol (PEG)-induced water stress. Biomass, grain yield and its components, harvest index, plant phenology, canopy temperatures, kernel weight loss by chemical plant desiccation, growth reduction by PEG-induced drought stress and osmotic adjustment were evaluated in the various experiments.Landraces varied significantly for all parameters of drought response as measured in the different experiments, which was in accordance to their documented large morphological diversity. Variation in grain yield among landraces under an increasing drought stress after tillering was largely affected by spike number per unit area. Kernel weight contributed very little to yield variation among landraces under stress, probably because these tall (average of 131 cm) landraces generally excelled in their capacity to support kernel growth by stem reserve mobilization under stress. Yield under stress was reduced with a longer growth duration of landraces only under early planting but not under late planting. Landraces were generally late flowering but they were still considered well adapted phenologically to their native region where they were always planted late.Landraces differed significantly in canopy temperature under drought stress. Canopy temperature under stress in the rainout shelter was negatively correlated across landraces with grain yield (r=0.67**) and biomass (r=0.64**) under stress. Canopy temperature under stress in the rainout shelter was also positively correlated across landraces (r=0.50**) with canopy temperature in one stress field environment. Osmotic adjustment in PEG-stressed plants was negatively correlated (r=–0.60**) with percent growth reduction by PEG-induced water stress. It was not correlated with yield under stress in any of the experiments. In terms of yield under stress, canopy temperatures and stem reserve utilization for grain filling, the most drought resistant landrace was the Juljuli population of T.durum. 相似文献
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