共查询到20条相似文献，搜索用时 62 毫秒
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通过对管花肉苁蓉种子的特性研究,找出适宜的分选原理来满足其清选要求。对几种常规分选(重力选、气筛分选和窝眼盘分选)原理进行分析,发现以上分选原理都不能满足该种子清选的要求,进一步分析试验,研制出适合管花肉苁蓉种子特性的清选机。 相似文献
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为进一步推进液体分选在提升种子质量方面的应用,选用紫苏种子（发芽率约 55%）为材料,分别采用 0.85g/cm3
、0.90g/cm3、0.95g/cm3、1.00g/cm3 的乙醇溶液作为分选液体,对紫苏种子进行分选。结果表明：紫苏种子的比重与种子活力显著相关,如采用 0.90g/cm3、0.95g/cm3 的乙醇溶液进行分选,获选紫苏种子占比分别为 88.3% 和 67.7%,发芽率分别显著提升至78.9% 和 88.3%,均达到紫苏种子的相关质量标准要求,效果均显著优于传统的风选 - 圆孔筛筛选 - 比重选清选工艺（获选占比 61.9%,发芽率 68.0%）。综合确定紫苏种子液体分选全程工艺为：用 0.90g/cm3 的乙醇溶液分选紫苏种子,捞出下沉的种子,离心甩干 3min,43℃旋转烘干 35min。 相似文献
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利用介电分选原理处理棉花陈种子,结果表明,不同分选电压、不同滚筒转速的介电分选处理对种子的发芽率、发芽势及田间出苗率均有显著影响,介电分选能提高种子的发芽率和种子活力,有利于培育壮苗,以7000V电压、25r/min转速为最佳处理.此种子处理方式可在农业生产中推广使用,特别是对陈种子的再利用有一定的参考价值. 相似文献
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为了更好地研究农业物料介电特性,总结了国内在应用介电特性测量谷物的含水率、种子的介电分选,以及种子电致生物效应等方面的研究进展。 相似文献
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介绍了运用冷冻干燥技术进行速溶蛋花汤的加工,研究了生产工艺、特点以及影响产品质量的主要因素。试验表明,采用冷冻干燥技术加工的速溶蛋花汤,具有营养丰富、风味独特、方便快捷等特点。 相似文献
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DENG Zhao-jing 《保鲜与加工》2005,(1):153-156
A new definition of inertia,i.e. the momentum is the measuring of inertia of matter, is proposed. The article through and etc., subjects, the correctness of the new notion of inertia:The monentum is the measuring of inertia has been demonstrated, and the unsolved contradictions of the traditional definition of inetia. And the mass is the measuring of inertia has been revealed. 相似文献
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香蕉是热带亚热带发展中国家重要的粮食作物和碳水化合物来源。但近年来,香蕉生产受到严重的病虫危害。大多数香蕉栽培品种是三倍体,生长周期长,而且不孕。由于没有种子,给繁殖和育种带来一定的困难。遗传转化技术的发展为香蕉品种的改良提供了一种有效的手段。香蕉的遗传转化方法有电激法、基因枪法、农杆菌介导法等。农杆菌介导法的应用是香蕉品种改良的一个重大突破。香蕉遗传转化的外植体也发展到多种,有原生质体,胚性细胞悬浮系,分生组织,以及横切薄片等。近几年,随着分子生物学的发展,出现了转化效率更高,重复性更好的香蕉遗传转化技术。如农杆菌和基因枪结合法,离心辅助农杆菌介导法、真空渗透技术等。这些新技术新方法的出现,必将推动香蕉产业高速发展。 相似文献
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Automobile comfort dynamic simulation is necessary when we predict and evaluate the comfort of a automobile or optimize performance of automobile. The nine DOF vibration model of automobile is established , which acts root mean square value of body in multiple work conditions as comfort evaluation indices. Based on the comfort simulation, the Hongyan 1160 is predicted in the way of comfort. The programmes can be used in many different automobiles . The computational result indicates that the model can simulate vibration of automobile truly. It is significant to research automobile comfort evaluation to optimize performance of automobile and comfort simulation .The computational program can be applied to optimize or simulate which has some reference value. 相似文献
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南瓜降糖功能及其系列食品加工技术 总被引：3，自引：0，他引：3
阐述了南瓜在糖尿病辅助治疗方面的功能特性,介绍了南瓜降糖主要制品南瓜全粉、南瓜脆片、南瓜果酱和南瓜肉汁的工艺流程和操作要点。 相似文献
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母猪繁殖障碍成因分析 总被引：3，自引：0，他引：3
繁殖障碍是导致母猪淘汰的最主要因素,直接造成母猪非生产天数延长,繁殖猪群生产效率降低,严重影响猪场的经济效益。本文作者对引起母猪繁殖障碍的多方面因素,包括营养因素（如饲养水平、饲料品质、断奶日龄）、环境因素（如温度、湿度、通风、光照）、疫病因素、生产技术及管理因素进行了详细阐述。 相似文献
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Applicability of molecular markers in the context of protection of new varieties of cucumber 总被引：2，自引：0，他引：2
G. P. Bernet S. Bramardi D. Calvache E. A. Carbonell M. J. Asins 《Plant Breeding》2003,122(2):146-152
The growing number of candidate varieties presented every year at each national Plant Variety Protection Office and their decreasing genetic variability forces strategies to be adopted that will reduce costs without losing rigour when deciding about the acceptance or rejection of a candidate variety. Molecular markers have been envisaged as a reliable tool to establish differences, but can molecular markers be used for assessing distinctness? A comparison between a molecular and a morphological characterization of 41 seed samples belonging to 36 cucumber varieties and including several external controls has been carried out to investigate the applicability of molecular markers in the context of distinctness, uniformity and stability (DUS) tests and the protection of new varieties. Both types of character indicate the same relationships among main groups, Dutch and Beth‐Alpha types, and Gerking and Slice types, the correlation between distance matrices being only 0.6489. Varieties considered uniform for morphological traits proved not to be so for molecular markers. Therefore, molecular characterization is not offering the same estimates of uniformity and relatedness between varieties as does morphological characterization. External controls were used to establish distinction limits with morphological and molecular dendrograms to focus on those varieties, which were suspiciously similar. The results with cucumber show that molecular identity could be used to assess any lack of distinctness and so corroborate the morphological assessment of candidate varieties. The morphological trait ‘type’ provides distinct characterization of varieties and the molecular characterization of candidate varieties could be used to design better field experiments to assess distinction within each group of morphological cucumber type. 相似文献