冷冻干燥速溶蛋花汤的加工技术

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。     

Measuring of Quantity of Matter-mass and the Measuring of Inertia of Matter-momentclm

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.     

香蕉遗传转化方法研究进展

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。     

The Simulation of Comfort of Nine DOF of Automobile

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.     

南瓜降糖功能及其系列食品加工技术

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。     

母猪繁殖障碍成因分析

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。     

Applicability of molecular markers in the context of protection of new varieties of cucumber

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.     

酸枣幼根原生质体的制备

以生长6~9 d的酸枣种子幼根为试验材料,0.7 mol·L^-1甘露醇作为渗透压稳定剂、pH值5.5~6.0、28℃恒温水浴条件下,以光学显微镜观察的水解总时间、初始产生原生质体的时间、原生质体产量及细胞碎片量为指标,研究通过酶水解来制备酸枣幼根原生质体的方法。结果表明,在含1%果胶酶+4%纤维素酶R-10+3%纤维素酶RS组合的酶解液中,保温4 h可制得产量较高、细胞碎片量较少的原生质体。     

壳聚糖对石榴果汁澄清效果的影响

利用壳聚糖的絮凝作用对壳聚糖在甜石榴汁澄清中的应用效果进行了研究,试验结果表明,壳聚糖用量为0.3g/L、澄清时间为60min、温度为35℃时,甜石榴汁透光率可达85%以上,且通过对壳聚糖处理前后可溶性固形物、总酸、VC等营养成分含量的比较,确定以上工艺参数为甜石榴汁澄清的最佳选择。     

利用RAPD技术进行枣树的品种鉴定

用试剂盒法提取了5种枣树品种的总DNA,使用RAPD技术对其进行了品种鉴定.选出12种扩增较稳定的引物,来扩增5种枣树品种总DNA,共扩增出34条带,每种引物扩增出1～5条带;多态性条带共2条,多态性比例为58.82%.利用DPS软件所做的聚类分析结果表明:5个品种间可聚成2类:优系99-1(1号)、婆枣(3号)、赞皇大臻(2号)可聚为A类;优系97-4(4号)、梨枣(5号)可聚为B类,同一类品种间体现了一定的相关性.     

Laboratorial Method of Determining Limit of Yielding of Material

Based on the relation between the incipient yield pressure and the limit of yielding in cylinder according to the elastic disabled rule, a laboratorial method of determining limit of yielding of material is designed and a set of experimental data were gained by the method. The incipient yield pressure of the cylinder is gained by analyzing the experimental data, and then the limit of yielding is gained. The laboratorial method has a good reliability as the experimental value has a little error to the theory value. It has a definite engineering signification and theory value to research the mechanical capability of material and the disabled rule of high pressure vessel.     

新疆布尔津县土地利用格局特征研究

基于RS与GIS技术,利用景观生态学理论及景观格局指数对布尔津县土地利用现状进行定量分析。结果显示为：（1）布尔津县以草地、林地为主要景观类型,镶嵌着耕地、水域等景观类型。（2）四个分区（即高山区、丘陵区、平原区、荒漠区）的林地资源组成差异明显,耕地、居民、交通及工矿用地集中分布在丘陵区和平原区（3）从各项指数来看,高山区的多样性指数较低;平原区是受人文因素最多的区域,景观优势度低,各种土地利用类型比例差异不大,有利于生态可持续发展,但要合理的开发利用;荒漠区生态环境相对脆弱,要加强生态环境的保护与改善。通过该研究对布尔津县的土地利用现状作一个了解,为该县乃至整个地区的景观规划和可持续发展战略提供科学依据。     

Efficiency of water use of early plantings of sunflower

Rain fed crop production in Mediterranean environments depends to a large extent on strategies that avoid the intense summer drought. Early plantings of sunflower have given consistently higher yields in such environments, but the basis for such yield increases has not been explored. We conducted two field experiments at Cordoba (Spain) to investigate the effects of an early and a late planting date on the components of water-limited crop productivity; namely, water use (T), water use efficiency (TE) and harvest index (HI) of sunflower. The results were generalized by simulating rain fed sunflower yields, under early (1 January) and late (15 March) plantings, for a 25-year period with the aid of a simulation model of the Ceres type (OILCROP-SUN) which has been validated in Cordoba. Experimental seed yields of early plantings in 1989 and 1996 were 2.0 and 3.0 t ha⁻¹, while late plantings yields were 1.3 and 2.4 t ha⁻¹, for the 2 years. Average simulated yields were 2.7 ± 1.1 and 1.9 ± 0.7 t ha⁻¹ for early and late plantings, respectively. For the 2 years, T of early plantings was higher than that of late plantings, but the response of TE and HI to planting date was not the same in the two experiments. In the simulation exercise, T and TE of early plantings were consistently higher than those of late plantings, while there were no differences in the HI for the two planting dates. We conclude that early plantings of sunflower increase rain fed yields by increasing both T and TE, while the impact of planting date on HI very much depends on the crop water stress pattern, which is quite variable from year to year even in the predictable Mediterranean environment.     

Establishment of High-frequency Regeneration System of Explants of Alfalfa

The cotyledon and hypocotyl of eight varieties of alfalfa( Medicago sativa L. )are used to study the effect of different cultivation procedures and genotypes on embryogenic callus and embryoid induction,plant development and transplant of alfalfa.The varieties of alfalfa with high embryoid induction rate and high differentiation rate are screened. A high frequency regeneration system for alfalfa tissue culture is established:which is benifical to the gene transformation of alfalfa.     

影响核桃贮藏品质因素的分析

介绍了几种核桃贮藏方法,综述了影响核桃贮藏品质的几个主要因素,以及针对上述影响因素提出若干解决对策.     

锌对多胚水稻双苗率的影响

多胚水稻是进行水稻无融合生殖研究的重要材料,通过对3个多胚水稻品系的去颖壳种子进行萌发试验,发现用适宜浓度的Zn~(2+)浸种催芽使3个品系的双苗率普遍提高,其中以1×10~(-5)M浓度最为明显,使双-3的双苗率由30.9%提高到41.8%,其他2个品系也有较大的提高。     

2种向日葵杂交种的抗盐碱性鉴定

为探讨不同盐碱胁迫下向日葵的耐盐碱性,选取2个向日葵品种(JK 1406、晋葵11号)为研究对象,研究了2种向日葵种子在盐碱胁迫下幼苗生长和生理特性的情况。结果表明:低浓度的盐碱胁迫一定程度能促进种子萌发;随着胁迫浓度的增加,种子的发芽率和发芽指数显著下降,并在高浓度盐碱胁迫下,JK 1406的SOD有小幅增加。在种子萌发期,2种向日葵对低浓度的盐碱均有一定抗性,但JK 1406较晋葵11号有更强的耐盐碱性。     

稻瘟病菌杂交后代致病性遗传分析

为明确稻瘟病菌杂交后代对水稻致病性的遗传规律,以亲本菌株HLJ6122和KA3杂交产生的后代群体为试验材料,将其接种于14个单基因系抗性水稻品种,对杂交后代进行毒性差异分析。结果表明,64个杂交后代菌株呈现显著的毒性分离,共出现53种毒性类型,无毒性/毒性分别表现为1∶1、1∶3、3∶1、15∶1。菌株KA3分别对IRBLi-F5、IRBLta-K1、IRBL12-M、IRBLta2-Pi持有1个无毒基因;对品种IRBLa-A、IRBLzt-T、IRBL7-W、IRBLkm-Ts、IRBL20-IR24持有2个无毒基因。64个后代菌株对品种IRBLk-Ka、IRBLz-Fu、IRBL19-M、IRBLb-B、IRBLkp-K60无毒性/毒性也符合1∶3,但2个亲本菌株HLJ6122和KA3对供试水稻品种致病性相同,因此难以判断无毒基因的来源。     

小黑麦数量性状遗传研究进展

研究数量性状遗传规律具有重要意义,了解数量性状的遗传,是有效地进行作物育种的一个必要前提.本文对小黑麦数量性状遗传分析的内容和分析方法作一综述,以期给从事麦类作物数量性状遗传分析的育种工作者提供参考和理论依据.     

龙眼远程商业运输保鲜技术分析

目前龙眼运往欧美市场主要通过空运和海运两种方法,将其放在泡沫箱里,加入一定量的冰块,空运到欧美市场,不仅运费昂贵,而且质量也不能得到保证,而选择耐贮运品种,适时采收和适当的保鲜处理后进行冷柜运输,不仅运费低,而且能保持较好的品质,是选择打进欧美市场的最佳运输方法。