‘黑珍珠’番茄植株再生体系的研究

为了研究‘黑珍珠’番茄植株再生,以‘黑珍珠’番茄幼嫩叶片为外植体诱导愈伤组织,通过愈伤组织诱导培养、愈伤组织分化培养、不定芽增殖培养、生根培养和试管苗移栽,建立高效快速的‘黑珍珠’番茄再生体系。结果表明：最适宜的诱导叶片愈伤组织的培养基为MS+ 1.0 mg/L 6-BA+ 0.1 mg/L NAA,叶片外植体愈伤组织诱导率最高可达98.2%;诱导出的愈伤组织在MS+ 1.5 mg/L 6-BA+ 0.2 mg/L IBA培养基上能很好的分化出不定芽;MS+4.0 mg/L KT+ 0.01 mg/L IBA 培养基可实现不定芽芽增殖;最适宜的生根培养基为1/2MS+ (0.05~0.08) mg/L NAA,试管苗移栽成活率达92%。     

植物生长调节剂对辣木(Moringa oleifera Lam.)组培快繁的影响

辣木富含维生素、蛋白质和各种微量元素,具很好的保健作用。本试验以辣木种子为外植体,研究植物生长调节剂对辣木不定芽诱导、增殖以及生根的影响。结果表明:适合辣木不定芽诱导的培养基为MS+1.0 mg/L 6-BA+0.2 mg/L NAA;适合辣木不定芽增殖的培养基为MS+0.5 mg/L 6-BA+0.2 mg/L NAA;辣木不定芽生根的培养基以1/2 MS+0.3 mg/L IBA+0.2 mg/L NAA+1 g/L活性炭为佳,根的生长都优于其他培养基。在生根培养基中,NAA和IBA两种植物生长调节剂配合使用优于NAA、IBA单独使用。本研究为辣木组织培养技术的发展提供了研究参考。     

笔筒树孢子无菌培养体系的构建

通过笔筒树孢子的无菌培养试验,以筛选出笔筒树孢子无菌培养各过程的最佳条件,建立一套系统、高效、完整的笔筒树的无菌培养技术体系,最终实现笔筒树种苗的工厂化生产。本研究用即采的成熟的离叶黑褐色孢子为材料,用75%酒精处理10 s后再用0.1%升汞处理6 min结合进行笔筒树孢子的表面消毒,诱导孢子萌发的最适培养基为1/2 MS+6-BA 0.1 mg/L+IBA 0.2 mg/L,增殖培养基为MS+6-BA 0.05 mg/L+IBA 0.05 mg/L,分化培养基为MS+6-BA 0.2 mg/L+IBA 0.2 mg/L,生根培养基为MS+6-BA 0.05 mg/L+IBA0.05 mg/L,培养温度(25±2)℃,日光灯光源,光照时间12 h/d,光照强度2 000 lx。     

野生珍稀植物虎舌红组培快繁技术研究

以虎舌红带芽茎段为外植体,研究其培养的最佳培养基配方及培养程序,建立虎舌红快繁技术体系.结果表明:芽萌发的最佳培养基为:MS+ 6-BA 2.0 mg/L+ NAA 0.5 mg/L+GA31.0 mg/L,萌发率为73.33％;芽苗增殖最佳培养基为MS+6-BA 1.5 mg/L+ NAA 0.5 mg/L+ GA3 0.1 mg/L,增殖系数可达7.5,且芽苗生长良好;生根培养基以1/2 MS+ IBA 0.5 mg/L+NAA 0.5 mg/L为最好,生根率达96.67％.在此培养基上添加不同浓度的活性炭,以0.2％ AC效果更好.炼苗以碎树皮的成活率最高,达91％.     

第3代杂交狼尾草优质种苗快速繁育技术研究

建立了第3代杂交狼尾草优质种苗快速繁育技术,即选用杂交狼尾草顶芽为材料,MS+6-BA 1.5 mg/L+IBA 0.5mg/L+3％白砂糖为不定芽诱导培养基,MS+6-BA 2 mg/L+IBA 0.1 mg/L+3％白砂糖为继代增殖培养基,1/2 MS+ NAA0.2 mg/L为生根壮苗培养基,用市售育苗基质和漂盘进行驯化栽培,成活率高达95％以上,整个育苗周期为180 d左右,降低了成本,缩短了育苗周期.     

鸡蛋花组织培养与快速繁殖

以鸡蛋花幼嫩带芽茎段为外植体,通过对初代启动培养、增殖及生根培养方案的筛选,建立了鸡蛋花的组织培养和快速繁殖体系。结果表明,最适启动培养基为MS+6-BA 0.5 mg/L+NAA 0.02 mg/L,外植体诱导萌发率达83.33%;培养基为MS+6-BA 3.0 mg/L+NAA 0.5 mg/L,培养基MS+6-BA 2.00 mg/L+NAA 0.05 mg/L适宜继代增殖,30 d的增殖系数为8.73;生根最适培养基为1/2 MS+IBA 0.2 mg/L+NAA 1.0 mg/L,生根率达98.1%。因此,本研究为鸡蛋花培养育苗与品种改良提供依据。     

观赏性小苹果“特丽”的组织培养及快速繁殖技术

以MS为基本培养基，以观赏性小苹果“特丽”的茎段为外植体，建立了无菌培养体系，研究了不同的激素配比和不同茎段类型对增殖培养的影响以及不同的生长素组合对试管苗生根的影响。结果表明：MS+BA0.5 mg/L~2.0mg/L+NAA0.1mg/L均为适合的芽萌发培养基；MS+BA1.5mg/L+IBA0.1mg/L是最适合的茎段增殖培养基；继代增殖培养取留顶芽无侧芽和去顶芽带有1~2个侧芽两种类型的茎段有利于提高增殖系数；1/2MS+0.2mg/L IAA是最佳生根培养基。试管苗增殖系数达到5.6，生根率达91.9%。     

草原龙胆‘阿琳娜’高效再生体系的建立

草原龙胆(Eustoma grandiflorum)花色典雅、花型丰富,是全球最受欢迎的切花之一。本研究以草原龙胆‘阿琳娜’叶片为外植体,研究了6-BA、NAA、GA₃和IBA不同组合对其出芽、壮苗、增殖、生根的影响。结果表明:最佳不定芽诱导培养基为MS+6-BA 0.5 mg/L+NAA 0.05 mg/L,不定芽诱导率达90.0%,平均出芽数为4.52个;MS培养基可实现壮苗;最佳增殖培养基为MS+6-BA 0.2 mg/L+IBA 0.2 mg/L+GA₃0.3 mg/L,增殖系数为6.41;培养基1/2MS+IBA 0.5 mg/L有利于生根。初步建立了草原龙胆‘阿琳娜’高效再生体系,为草原龙胆优良品种快速繁殖及基因工程研究提供了依据。     

对蚊净香草离体快速繁殖技术优化的探索

对蚊净香草离体快繁技术进行了探索,结果表明培养的理想组合是:诱导培养基MS 6-BA 2.0 mg/L(以下单位同) NAA 0.2 Vc 3;增殖培养基MS 6-BA 1.0 NAA 0.1 IBA 0.2和MS 6-BA 0.5 NAA 0.1 IBA 0.2交替使用;生根培养基1/2 MS NAA 0.1 IBA 0.3或1/2 MS NAA 0.3 IBA 0.1.同时适当的附加某些有机物可以大大增加增殖系数,提高增殖芽的质量.     

鹅不食草的组织培养与快繁技术研究

以茎段和顶芽为外植体,研究不同的基本培养基和植物生长调节剂对鹅不食草组织培养各阶段的影响。结果表明:MS为较适合的基本培养基,初代诱导较好的培养基为MS+6-BA 1.0 mg/L+NAA 0.1 mg/L;继代增殖的最佳培养基为MS+6-BA 1.0 mg/L+NAA 0.3 mg/L,增殖系数为10.4/30 d;生根最佳培养基为:1/2 MS+NAA 0.3 mg/L+IBA 0.1 mg/L。该技术的研究可为鹅不食草的品种改良提供技术平台。     

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.     

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.     

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。     

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。     

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...