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2006年1月1日,欧盟“食品及饲料安全管理法规”正式实施。2006年6月,日本政府也将根据修订后的《食品卫生法》,施行《食品中残留农业化学品肯定列表制度》。欧盟和日本在2006年同时开始实施新食品安全法规,必将对我国的农产品出口带来严重影响,导致出口难度和风险增大。 相似文献
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近年来,随着消费者对食品质量、食品安全的关注日益增强,我国出口食品农产品贸易的不断发展,遭遇到的国外技术性贸易措施和贸易保护主义的制约越发严重。日本、美国、欧盟等进口国家和地区对我国出口食品农产品实施精密检测;不断提高市场准入门槛,针对我国食品农产品的恶意炒作甚嚣尘上,我国出口食品农产品质量安全问题不断遭到国外通报。技术性贸易壁垒正在成为我国食品出口遭遇的非关税 相似文献
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日本“肯定列表制”对我国蔬菜出口的影响 总被引:13,自引:2,他引:13
从2006年5月29日起,日本将正式实施食品中农业化学品残留“肯定列表制”(Positve List System)。该制度对食品、农产品中农业化学品残留的限量做出新的规定,进而大幅度提高了进口农产品、食品的门槛。蔬菜是中国对日出口的重要农产品,为此,引起了各个方面的高度重视。 相似文献
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园林草坪主要是指应用低矮、质优、扩展性强、质地纤细的植物作覆盖,并以它们大量的根、匍匐茎布满土表的地被.草坪是现代园林的一个重要组成部分,具有观赏、实用、改善生态环境等综合功能. 相似文献
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Rasa?Meskauskiene Oliver?Laule Nikolai?V?Ivanov Florian?Martin Markus?Wyss Wilhelm?Gruissem Philip?Zimmermann
Background
It is generally accepted that controlled vocabularies are necessary to systematically integrate data from various sources. During the last decade, several plant ontologies have been developed, some of which are community specific or were developed for a particular purpose. In most cases, the practical application of these ontologies has been limited to systematically storing experimental data. Due to technical constraints, complex data structures and term redundancies, it has been difficult to apply them directly into analysis tools.Results
Here, we describe a simplified and cross-species compatible set of controlled vocabularies for plant anatomy, focussing mainly on monocotypledonous and dicotyledonous crop and model plants. Their content was designed primarily for their direct use in graphical visualization tools. Specifically, we created annotation vocabularies that can be understood by non-specialists, are minimally redundant, simply structured, have low tree depth, and we tested them practically in the frame of Genevestigator.Conclusions
The application of the proposed ontologies enabled the aggregation of data from hundreds of experiments to visualize gene expression across tissue types. It also facilitated the comparison of expression across species. The described controlled vocabularies are maintained by a dedicated curation team and are available upon request.13.
以文冠果种子为试材,设置10种不同催芽方法,包括水浴加热、不同浓度的H2_SO_4、KNO_3、PEG-6000等试剂处理文冠果种子,诱导发芽后调查种子的发芽率、活力、发芽势等发芽参数,并对不同催芽方法进行了比较分析,筛选适合文冠果种子快速解除休眠的方法。结果表明:80℃水浴加热、4%KNO_3溶液、5%PEG-6000溶液、GA_3溶液、2%KNO_3溶液、10%PEG-6000溶液、4℃蒸馏水浸种、50%H_2SO_4溶液处理,均可不同程度的提高文冠果种子的发芽率,而高浓度H_2SO_4溶液处理对文冠果种子发芽有抑制作用;文冠果种子经80℃水浴加热10min处理可使发芽率提高到55.83%,为未处理的9.3倍。 相似文献
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Light emissions in lux from single incandescent lamps ranging from 60 to 200 watts were arranged in tables according to the lamp height above the ground. The method of calculating the desired lamp spacing to achieve a desired light intensity is illustrated. A table showing the reduced light emission due to various voltage drops is given along with precautions to avoid them. 相似文献
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《Scientia Horticulturae》2005,103(2):249-255
Bromeliad growers report severe leaf quality problems for Aechmea cultivars grown under commercial greenhouse conditions. In this research, a leaf damage ‘sensitive’ and ‘insensitive’ A. cultivar were compared for their C-metabolism and hydrophysiology under these greenhouse conditions. Stomata opening index indicated CAM (Crassulacean acid metabolism) for both cultivars, with 45–50% open stomata around 4:00 a.m. and 5–10% in the afternoon. Malic and citric acid were the major organic acids present in the leaves, with diurnal malic acid accumulation during the night. The leaf damage ‘sensitive’ cultivar showed higher malic acid accumulation than the ‘insensitive’ cultivar (200 μmol/gfw versus 170 μmol/gfw). Leaf osmotic potential and turgor pressure were linked with diurnal malic acid fluctuations: organic acid accumulation during the night generated high leaf turgor pressures (up to +0.86 MPa).A leaf damage sensitivity test was designed and confirmed previous experiences of several bromeliad growers. Both cultivars showed higher leaf damage percentages (98 and 78%) when leaf malic acid accumulation was high. We attribute this elevated sensitivity to lethal turgor pressures and consider them to be caused by the water capturing mechanism generated by high organic acid accumulation. Under current greenhouse conditions, this water capturing mechanism can be disastrous for plant leaf quality. Especially, under high relative humidity, hindering plant transpiration and stimulating water uptake by dew formation, leaf quality could be endangered. 相似文献
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