植物生长调节剂GGR6号对菊花品种金不凋插穗的影响

用植物生长调节剂GGR6号浸泡菊花品种金不凋插穗基部1h、2h和4h；浸泡药剂浓度设15mg．kg^-1、30mg．kg^-1、45mg．kg^-1三个浓度梯度，清水作对照。结果表明：用GGR6号浸泡金不凋插穗，可显著增加插穗的侧根数、侧根长度和茎高；药剂浓度以30mg．kg^-1，浸泡2h效果最佳。     

不同生长调节剂对柴达木地区枸杞嫩枝插穗根系生长的影响

为研究不同生长调节剂对柴达木地区枸杞嫩枝插穗根系生长的影响,选用4种生长调节剂,分别设IAA、IBA、NAA、国光生跟萘乙酸、NAA+ IBA和NAA+ IAA6个处理组合,并调查各处理插穗的成活率、单株根数、根长和根干重.试验表明:IAA、NAA+IBA处理后的成活率分别为67.03％、65.97％;插穗的单株根数、根长和根干重,分别为3.77个、6.019 cm、7.7×10-2g;国光生跟萘乙酸处理分别为3.87个、5.928 cm、5.7 ×10-2 g;通过比较,IAA、NAA+ IBA、国光生跟萘乙酸可作为柴达木地区枸杞嫩枝插穗处理的首选植物生长调节剂.     

三种植物激素对紫丁香扦插的影响

通过对实验结果的分析比较,表明NAAI、BA和ABT对紫丁香插穗生根率的作用效果显著,但三种激素作用效果之间相比无显著差异,且它们的最佳作用浓度和处理方式不同.因此三种激素处理效果的主要依据是对根系发育状况的影响.结果是采用ABT处理比IBA和NAA效果好.试验说明其最佳质量比范围是100 mg/kg.在激素处理中,应用IBA会增加愈伤组织的形成,但发现有些穗条形成大量愈伤组织而形成根少,且IBA的应用有抑制枝生长的现象,故在丁香的扦插中使用IBA的作用并不理想.紫丁香中下部的枝条成活率较之上部的高出许多.二年生的枝条的成活率最高,尤其以二年生的生根粉的效果最好,为49.1%,比一年生和多年生的要高出15%左右.综合来看,丁香采用2年生枝条做插条,利用生根粉处理,配合保湿遮荫措施即可达到60%以上的成活率.     

四种生长调节剂对胡杨嫩枝扦插成苗的影响

为了突破胡杨扦插育苗的技术瓶颈,在智能日光温室内,研究了NAA、ABT、IBA、NAA+IBA四种生长调节剂及不同浓度对嫩枝扦插的影响,结果表明:四种调节剂影响扦插苗成活率、高生长量、分枝数、根系生长量、新生根数差异极显著,同一调节剂不同浓度影响高生长量差异极显著,影响新生根数差异显著,对分枝数、新生根生长量影响差异不显著;四种生长调节剂促进成苗新生枝平均高生长和新生根生长量为IBANAA+IBANAAABTCK,促进插穗成活和成苗平均分枝数、新根数为NAA+IBAIBANAAABTCK;最佳处理为IBA150mg/L,成活率最高为86%,分枝平均长5.88cm,分枝数为1.8个,新生根长3.46cm,分根数平均8.8条,其次为NAA400mg/L+IBA175mg/L,成活率为82%,分枝平均长4.8cm,分枝数为2.6个,新生根长3.24cm,分根数平均9条;生根类型为皮层生根。     

GGR6号浸泡荷兰菊嫩枝插穗试验

用GGR6号浸泡荷兰菊幼嫩插穗基部1h、2h和4h,浸泡浓度分别为0mg·L-1、10mg·L-1、20mg·L-1和30mg·L-1。结果表明:GGR6号浸泡荷兰菊嫩枝幼嫩插穗,可显著增加幼嫩插穗的侧根数、侧根长度、茎粗,其中以浸泡浓度20mg·L-1、浸泡2h效果最好,浓度超过20mg·L-1、浸泡2h会产生抑制作用。     

植物生长调节剂ABT1对不同彩叶树种扦插的影响研究

为了快速繁育引进的优质彩色树种紫叶稠李、金叶榆、金叶水腊,采用完全随机设计,研究三种不同浓度植物生长调节剂ABT1、三种不同浸泡时间对彩叶树种插穗的芽萌发、抽条和生根长度的影响;结果表明:不同彩叶树种对ABT1的响应各不相同,紫叶稠李扦插枝条在100mg/L ABT1处理1h效果最好;金叶榆扦插枝条在50mg/L ABT1处理1h效果最好;金叶水腊扦插枝条在200mg/L ABT1处理2h效果最好。     

外源激素对软枣猕猴桃硬枝扦插生根的影响

采用不同种类和质量浓度的外源激素、不同插穗类型对软枣猕猴桃硬枝进行了扦插生根试验。结果表明:软枣猕猴桃是以皮部生根为主的辅以愈伤组织生根的综合生根类型;在供试的4种外源激素中,以ABT总体效果最好,其次为NAA,IAA和IBA较差;在试验的12个处理组合中,以100mg·mL-1ABT处理的生根率最高,综合生根率、不定根数量和最长根的长度等3项指标,以200mg·mL-1ABT处理和200mg·mL-1IAA处理的效果最佳;而在对以枝条基部或上部作为插穗的分析中发现,以枝条上部作为插穗的生根效果比以枝条基部作为插穗要好。     

药食两用植物金槐扦插技术研究

为提高金槐(Sophora japonica‘Jinhuai’)的扦插生根成活率，拓展金槐苗木生产渠道，选择健康的金槐枝条作为扦插材料，采用正交试验设计，探究插穗粗度、基质类型、植物生长调节剂种类以及植物生长调节剂浓度4个因素对金槐扦插成活率及扦插苗性状的影响，以期为金槐扦插育苗提供科学依据。结果表明：9个组合的成活率存在极显著差异(P<0.01),组合5成活率最高，为54.00%;9个组合的根数、枝数差异不显著，而根长、根粗、茎长、茎粗和叶片数均存在极显著差异(P<0.01),组合5和组合9最有利于根生长；组合7的平均茎长最长，为10.6 cm,与组合4,5,6,8,9间不存在显著差异但极显著长于其他组合；组合9的茎粗为3.03 mm,显著高于其他8个组合；叶片数最多的是组合9,为7.8,与组合7差异不显著，但二者显著高于其他6个组合。综合比较得出，粗度为10-14 mm的穗条使用50 mg/L的吲哚丁酸(IBA)浸泡后扦插于细沙基质中可获得较好的效果，更有利于金槐扦插苗的生长。     

基质、插穗及促根剂对喜树扦插生根的影响

为探索不同处理对喜树硬枝扦插生根的影响及扦插生根与体内营养物质含量之间的关系,以1年生喜树枝条为材料,从基质种类、插穗部位、长度及粗度、ABT与NAA浓度等方面研究了不同处理对生根的影响,同时测定了喜树生根过程中可溶性糖、淀粉和蛋白质3种营养物质的含量。结果表明,泥炭土中插穗生根率最高,达96.67%; 选用1年生实生苗下部插穗的成活率最高,为97.33%; 粗度为0.6～0.9 cm、长度为10.0～15.0 cm的插穗,更利于生根。沙藏过的喜树插穗生根率高于不沙藏枝条。质量浓度为250 mg/L的ABT处理插穗效果最好,生根率达86.67%。硬枝扦插的喜树插穗是以皮部生根为主,兼有部分愈伤组织生根。生根过程中插穗基部的可溶性糖含量呈急剧下降后升高和再下降再上升的趋势,淀粉含量呈升高—降低—升高—降低的变化趋势,而蛋白质含量变化趋势与前两者都不一致。     

镉离子对大豆幼苗生长发育的影响

分别对大豆幼苗进行不同浓度的镉离子处理，获取有关形态解剖学方面的数据，并由此得出相关曲线以比较不同浓度镉离子对大豆幼苗生长发育的危害程度。形态学数据包括根长，茎长，侧根长，侧根数以及干重，鲜重等。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has