三色堇

三色堇又名蝴蝶花,堇菜科,堇莱属的多年生草本,常作二年生栽培,素有花坛皇后的美誉。三色堇花大,花径约有5厘米,花色瑰丽,通常为黄、白、紫三色,还有纯白、浓黄、紫堇、蓝、青、古铜色等,或单色,或花朵中央具一对比色之“眼”。三色堇株高10-20厘米,常倾卧地面,是江浙地区早春花坛的重要花卉,花期较长,以温州地区为例,可以从初秋的11月上旬至第二年的4月下旬,长达6个月之久。     

四种植物花蜜腺的初步研究

通过对油菜、蚕豆、毛莨和三色堇等四种植物花蜜腺的外部形态、显微切片和扫描电镜观察,了解到油菜和蚕豆的花蜜腺是花托类型,蜜主要通过变态气孔分泌;毛莨是花被类型,蜜由表皮细胞分泌;三色堇是雄蕊类型,蜜由具乳头状突起的特化表皮细胞分泌。该四种植物花蜜腺中维管组织的分化有三种不同的情况。油菜同一朵花上四个蜜腺有不同的特化程度。     

浅议农业花卉的种植

花卉可以美化人们的生活,改善环境,净化空气。花卉也有重要的经济价值,因此,在农业现代化产业发展进程中,花卉种植业有重要作用。花卉的种植和栽培管理,是对花卉生长全过程的监管,是提高花卉生长质量和数量的必要环节。在花卉栽培管理的过程中,必须注重防治病虫害,考虑各种气象因素,把握播种、中期的修剪、追肥等技术细节。该文对花卉业的种植情况和种植、栽培管理的技术细节和相关步骤进行了论述,讨论了利用昆虫防治病虫害的方法,可为花卉种植实践提供有益的参考。     

四种植物花蜜腺的初步研究

通过对油菜、蚕豆、毛莨和三色堇等四种植物花蜜腺的外部形态、显微切片和扫描电镜观察,了解到油菜和蚕豆的花蜜腺是花托类型,蜜主要通过变态气孔分泌;毛莨是花被类型,蜜由表皮细胞分泌;三色堇是雄蕊类型,蜜由具乳头状突起的特化表皮细胞分泌。该四种植物花蜜腺中维管组织的分化有三种不同的情况。油菜同一朵花上四个蜜腺有不同的特化程度。     

三色堇无土栽培技术

采用3种营养液(MS、园试配方、霍格氏配方)对三色堇进行无土栽培试验.在营养生长期,喷施园试营养液三色堇株高生长较快,叶片数量较多,其次是MS营养液,霍格氏缓慢;霍格氏营养液促进三色堇功能叶长度和宽度生长效果好,其次是MS营养液,园试营养液最短;喷施园试配方营养液的三色堇嫩叶和功能叶中叶绿素含量较高,霍格氏配方处理的三...     

园林中盆栽花卉的栽培管理方法

花卉的栽培与一般的树木种植有所不同,因为花卉栽培的目的主要是为了观赏,同时由于花卉种类多、范围广,又有地生、水生、气生等各种类型。因此,花卉栽培既要求适应花卉植物本身的习性,又要求满足应用上的需要。本文重点分析了盆裁花卉的栽培管理方法。     

不同光质对三色堇生长发育的影响

不同光质对三色堇的生长发育的影响较大,本文研究了红、黄、蓝、紫、绿、白六种光质对其花期、叶面积、株高、冠幅等生理特征的影响.结果表明：红光能够诱使三色堇提早开花,开花周期缩短,蓝光能够诱使推迟开花,开花周期延长.红光有助于三色堇有机物的积累,绿光抑制有机物的积累.绿光促进株高生长,紫光抑制株高生长.三色堇在蓝、紫、绿光条件下总叶面积大,红光最小.     

不同光质对三色菫生长发育的影响

不同光质对三色堇的生长发育的影响较大,本文研究了红、黄、蓝、紫、绿、白六种光质对其花期、叶面积、株高、冠幅等生理特征的影响。结果表明:红光能够诱使三色堇提早开花,开花周期缩短,蓝光能够诱使推迟开花,开花周期延长。红光有助于三色堇有机物的积累,绿光抑制有机物的积累。绿光促进株高生长,紫光抑制株高生长。三色堇在蓝、紫、绿光条件下总叶面积大,红光最小。     

三色堇的育苗及栽培技术

三色堇又名蝴蝶花、猫脸花、鬼脸花,是堇菜科、堇菜属的两年生草本植物,现代F1代杂交种多作一年生栽培,学名为Viola Tricolor,英文名为Pansy,原产地为南欧,三色堇为冷季型植物,喜欢冷凉的气候环境.早期三色堇的耐高温能力较差,主要在秋季播种,应用于春季花坛.经过育种工作者的努力,选育出了许多更耐寒及耐高温的品种,目前已广泛栽培,因此现在的三色堇不仅适宜布置春季花坛,而且大量运用于秋冬季花坛,大大丰富了秋冬季花坛的色彩.     

花卉消费新形式——购花卡

购花卡是伴随着人们对花卉消费的需求越来越强烈而产生的新生事物.它既有普通花卉消费的实效性特点,又有购物卡消费的便捷的特点,同时还结合了网络传播消费资源,目前属于花卉绿植的中高端消费形式.购花卡包括礼品卡、家装卡、通用卡等不同面额的不同类型,为消费者提供更专业、更全面的服务.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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