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种子质量监督是种子管理部门一项重要职能,切实加强这项工作对维护良好的种子市场秩序和农业安全生产意义深远。加快推进种子检验室认证制度是与国际种子市场接轨,规范自身行为,建立种子管理部门质量监督检验权威的有效手段,符合法律要求和实际需要。但是由于工作经费不足,思想认识偏差,不知如何认证等原因,导致此项工作明显滞后。为此,各级应在资金和导向上大力支持,同时种子管理部门也要认真对待,积极参与,为强化种子质量监督和参与国际竞争提供支持。 相似文献
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农作物种子质量监督检验是种子产业化的重要组成部分,在种子产业化链条上起着严把种子质量关的作用。加强农作物种子质量监督检验体系建设,是实施“种子工程”的重要内容。现代化的农作物种子质量监督检验体系的建设,将有力地推动“种子工程”向纵深发展,努力提高种子质量,为发展农业生产和广大农民增产增收服务。l我国农作物种子质量监督检验体系的现状农作物种子质量监督检测是由国家产品质量监督管理部门认可的公正性检验机构,依照标准对在我国境内生产、经销的农作物种子质量进行监督检验,并出具公正性检测数据的过程。通过监督… 相似文献
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种子质量监督检验对防范假劣种子上市销售和保证农业安全用种有着极其重要的作用,这项工作一般由农业行政主管部门委托给本级种子质种子质量监督检验对防范假劣种子上市销售和保证农业安全用种有着极其重要的作用,这项工作一般由农业行政主管部门委托给本级种子质量监督检验站(室)完成。如何高质量地完成检验任务,确保监督检验工作的公正性和准确性,是监督检验工作的生命线和工作中心。笔者据多年工作经验,谈几点体会,供同仁参考。1把好扦样关扦样做为检测工作的第一步,保证扦样的正确性对检测结果起着关键性的作用。确保扦样的正… 相似文献
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连续两年的种子执法年监督抽查通报,连续出现同样的知识性错误,暴露出种子质量监督部门和种子检验机构存在相关问题,有必要引起各级部门的重视。 相似文献
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正确检定校验仪器提高检测工作质量农业部全国农作物种子质量监督检验测试中心(北京100026)赵建宗自1995年在全国实施种子工程以来,各级种子检测中心的建设作为种子工程的重要环节正在顺利实施。目前,国家已对36个不同级别的种子检测中心进行了投资,各单... 相似文献
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种子检验是种子质量管理工作的重要手段,种子部门的种子检验工作包括承担上级有关部门下达的质量监督抽查检验;负责有关产品质量的仲裁检验和委托检验;新品种审定前的种子质量鉴定;以及对实施生产许可证和质量认证的产品进行检验等,检测结果具有权威性和公正性,不受任何行政干预,为此,作为这一结果的完成者——种子检验员的素质高低是能否确保检验工作准确性和可靠性的关键因素。 相似文献
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莫曾梅 《农产品加工.学刊》2019,(7):78-80
随着生活水平的提高,果蔬产品成为人们摄取营养元素的重要食品之一。分析了我国果蔬采后存在的问题,并对低温及气调保鲜、化学保鲜剂、涂膜保鲜技术及超声保鲜技术等贮藏保鲜技术研究进行了综述,指出我国果蔬贮藏保鲜技术持续、稳定、健康的发展要倚重于科技创新。 相似文献
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Oil and protein crops are of growing importance in cropping systems. This study was carried out to compare oil crops of linseed, rapeseed, sunflower and protein crops of faba bean and white lupin for grain production, residual plant dry matter and nitrogen. Two field experiments with either oil or protein crops were conducted in 1993 and 1994, respectively. Total dry matter production, grain yield, residues, N concentrations and mineral N in the soil were measured. Dry matter production and distribution as well as N uptake and residues varied greatly among species and between years. In 1993, oil crops gave up to 3 t ha−1 grain and 16 t ha−1 residues with sunflower, while in 1994 up to 5 and 11 t ha−1, respectively, were recorded with winter rape. Protein crops showed an opposite reaction in years. Nitrogen uptake and residual N amounts were correlated with dry matter production. Plant residues of oil crops contained 20–140 kg N ha−1; those of protein crops up to 80 kg N ha−1. Despite the variation of residual plant N the variability of mineral N in the soil at harvest was hardly influenced by crops and amounted to only 20–50 kg NO−3-N ha−1. 相似文献
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我国蔬菜产业和科学技术的发展与展望 总被引:1,自引:0,他引:1
1 我国蔬菜产业的发展现状蔬菜是人们日常生活中不可缺少的副食品,也是我国目前种植业中最具活力的经济作物。改革开放以来,随着市场经济的发展,农产品产销体制的不断改革和完善,特别是1988年实施“菜篮子工程”以来,蔬菜产业得到了蓬勃发展。1.1 播种面积1987~1999年,全国蔬菜播种面积由533.3万hm2,发展到1333.3万hm2,增长139.5%。1.2 总产量1987~1999年,全国蔬菜总产量由1.55亿t增加到4.05亿t,增长161.3%,使年人均鲜菜占有量达到330.7kg(世界各国人均105kg…… 相似文献
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以Y05-222A和Y06-136R杂交得到的135株F2群体为研究材料,测定过氧化物酶(POD)、超氧化物歧化酶(SOD)、脯氨酸(Pro)、过氧化氢酶(CAT)、可溶性蛋白和丙二醛(MDA)等6个生理指标,并进行方差分析、相关性分析和通径分析,对F2群体进行偏度及峰度分析。结果显示,以上6个生理指标在F2群体中P>0.05,分布频率符合正态分布,同时存在双向超亲分离现象;相关性分析和通径分析显示,这些指标与抗盐碱系数均呈极显著相关(正相关或负相关),且相关系数与总间接通径系数方向一致。POD活性的直接通径系数为0.5003,可见POD直接影响抗盐碱性;CAT活性和Pro含量的直接通径系数分别为-0.1317和-0.0384,间接影响抗盐碱性;SOD活性、MDA及可溶性蛋白含量直接或间接影响抗盐碱性。POD、SOD、Pro、CAT、可溶性蛋白和MDA各生理指标的抗盐碱作用表现为POD>CAT>Pro>可溶性蛋白>MDA>SOD。叶片数、株高、茎粗和盘径与抗盐碱系数呈极显著正相关,其相关性表现为叶片数>盘径>株高>茎粗。以上结果可为研究油用向日葵抗盐碱性提供一定的理论基础。 相似文献
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LI Zhi-liang~ 《保鲜与加工》2004,(7):82-85
Some novel concepts of chemomics/molomics are proposed including hydrocarbomics, alcophenomics, carboxomics, pepitomics, metabonomics, etc. like genomics, protomics and glycomics in bioomics. Some examples are given to demonstrate the chemomics and/or molomics methodology and technology based chemoinformatics and bioinformatics and their wide applications in Chemistry and Biology. 相似文献
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《Journal of Landscape Research》2013,(Z1)
Definition of Fengshui and the theories of selecting mountain and water environment in Fengshui were elaborated. Theories about mountain-water relationship were expounded from the perspective of piling of rockeries and layout of water, a residential area in Hefei City, Beijing Olympics Park, Hangzhou Prince Bay Park, mineral pit of Shanghai Chenshan Botanic Garden, Beijing Beihai Park, Shanghai Changfeng Park were taken for example to demonstrate the influence of traditional rockery and mountain layout in Fengshui on modern landscape design. 相似文献
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果蔬食品的褐变与控制 总被引:9,自引:0,他引:9
结合生产实际,对果蔬食品产生褐变的机理及其控制途径进行探讨。通过遗传学途径,培育果蔬新品种,使之不含易氧化变色物质,增强其天然抗褐变性,是控制果蔬褐变的根本途径。 相似文献
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Acidity and sweetness in apple and pear 总被引:2,自引:0,他引:2
Summary Sweetness and acidity in apple and pear inherit independently and can be organoleptically evaluated separately, but less accurately in pear than in apple. For breeding purposes an analysis of fruits for acidity and sweetness with pH indicator paper and a hand refractometer is to be prefered to the organoleptic method.In apple, the acidity-decreasing with time-of the unripe fruit was already strongly indicative of that of the eating-ripe fruit; sugar-increasing with time-not before the fruit was picking ripe. Sugar content in apple and pear, and the pH in pear, appeared to be normally distributed; the pH in apple showed a segregation into an acid and a low-acid group, which occurred in both the unripe and ripe stage. The segregation ratio between these groups was found to be highly variable. On the whole, the mean acidity and sugar content of apple and pear progenies is significantly determined by that of the parents. Most of the observations made did not support the theory that low acidity in apple is determined by one recessive gene. The relationship between the pH of leaf juice and fruit juice in apple may offer a possibility for pre-selection. 相似文献