垂盆草组织培养及无性系建立的研究

本研究以垂盆草的嫩茎为材料,进行了愈伤组织诱导、愈伤组织分化、不定芽生根、试管苗生根继代培养进行了研究,建立起垂盆草的无性系。结果证明：MS＋BA0.2mg·L-1＋NAA0.1mg·L-1＋GA30.5mg·L-1是诱导嫩茎形成具有分化能力愈伤组织的理想培养基;1/2MS＋BA0.6mg·L-1＋NAA0.1mg·L-1＋GA30.5mg·L-1是诱导愈伤组织分化和不定芽分化的理想培养基;1/2MSmg·L-1＋I-AA0.3mg·L-1＋NAA0.1mg·L-1是试管苗生根培养的理想培养基;河沙是试管苗移栽的理想基质。移植的试管苗具有长势旺盛整齐、根系增加1倍左右、耐干旱等特点。     

千屈菜的组织培养及再生体系建立的研究

以千屈菜的嫩茎为材料,进行了愈伤组织的诱导和分化、不定芽分化、试管苗生根、移栽、扦插和移植的研究,成功建立起千屈菜的无性系.结果证明:MS+BA0.2mg/L+2,4-D0.8mg/L和1/2MS+BA0.2mg/L+2,4-D0.8mg/L是诱导培养嫩茎愈伤组织的理想培养基;MS+AgNO31.0mg/L+BA0.6mg/L+NAA0.2mg/L是嫩茎愈伤组织分化培养的理想培养基;MS+BA0.5mg/L+NAA0.1mg/L是不定芽分化继代培养的理想培养基;1/2MS+IAA0.2mg/L是试管苗生根培养和生根继代培养的理想培养基;炉灰渣是试管苗移栽和扦插的理想基质;移植到花坛上的试管苗生长旺盛,根系增加1倍左右.     

丹参嫩茎组织培养及无性系建立的研究

为保护濒危植物丹参,实现人工栽培,以嫩茎为材料,进行了愈伤组织诱导与分化、试管苗生根、继代、移栽和定植研究.结果证明:MS+6-BA0.3 mg.L-1+2,4-D2.0 mg.L-1+NAA0.8 mg.L-1是丹参嫩茎愈伤组织诱导培养和继代培养的理想培养基;1/2MS+AgNO30.2 mg.L-1和1/2MS+AgNO30.2 mg.L-1+6-BA 0.1 mg.L-12种培养基是丹参颗粒状愈伤组织块分化培养的理想培养基;以经过浓度为10mg.L-1的NAA溶液处理3 m in的不定芽为材料、以1/3MS+IAA0.4 mg.L-1为培养基的方法是丹参不定芽生根培养的理想方法.试管苗移栽成活率为92.7%,定植成活率为99.2%.定植的试管苗保持了野生丹参的所有生物性,建立起丹参的无性系.     

穿龙薯蓣嫩茎高效无性系建立的研究

研究了穿龙薯蓣嫩茎愈伤组织的诱导和分化、不定芽的分化和生根、试管苗移栽和扦插及移植于山坡栽培所需要的条件,建立起穿龙薯蓣嫩茎的高效无性系及快速繁殖技术。结果证明：MS＋BA0．3mg／L＋1NAA1．6mg／L是诱导嫩茎形成颗粒状愈伤组织的理想培养基;MS＋AgNO32．0mg／L＋BA1．0mg／L＋NAA0．1mg／L是颗粒状愈伤组织和不定芽分化培养的理想培养基;1／2MS＋NAA0．4mg／L是试管苗生根培养和生根继代培养的理想培养基;炉灰渣是试管苗移栽和扦插的理想基质。移植的试管苗具有长势旺盛、春天发芽早、根系发达等性状特点。     

紫草的组织培养及快速繁殖研究

以紫草的嫩茎为材料,进行了愈伤组织的诱导、愈伤组织的分化、不定芽的生根和生根继代、试管苗的移栽和移植的研究,建立起紫草嫩茎的无性系,达到了快速繁殖的目的．结果表明：MS＋BA0.5mg／L＋NAA1.8mg／L是诱导嫩茎形成具有分化能力愈伤组织的理想培养基;MS＋AgNO31.5mg／L＋BA0.3mg／L＋NAA0.1mg／L是愈伤组织和不定芽分化的理想培养基;1／3MS＋IAA0.4mg／L是试管苗生根培养的理想培养基;移植后试管苗保持了野生植株的各种生物性状,后期出现了生长旺盛、根系发达的特点．     

小根蒜组织培养及无性系建立的研究

以小根蒜嫩茎的鳞茎为材料,进行了愈伤组织诱导、不定芽分化、试管苗生根、试管苗移栽和移植的研究,建立了小根蒜嫩茎无性系。结果证明：MS＋6-BA0．3mg·L^-1＋2,4-D1．0mg·L^-1＋NAA0．5-1．0mg·L^-1是小根蒜愈伤组织的诱导培养和继代培养的理想培养基;Ms＋AgNO31．2mg·L^-1＋BA0．5mg·L^-1＋NAA0．1mg·L^-1是愈伤组织和不定芽分化的理想培养基;1／3MS＋NAA0．3-0．6mg·L^-1是变异小根蒜不定芽生根的理想培养基;炉灰渣是试管苗移栽的理想基质。     

空心菜无性系的建立及快速繁殖

研究了空心菜优良变异植株嫩茎愈伤组织的诱导、分化、试管苗生根、移栽、扦插及田间栽培所需要的条件,建立起优良变异空心菜嫩茎的无性系及快速繁殖技术.结果证明,诱导嫩茎愈伤组织的理想培养基是MS BA0.8mg/L 2,4 D0.3mg/L;诱导愈伤组织分化的理想培养基是MS La(NO3)30.8mg/L;生根的理想培养基是1/2MS IAA0.2mg/L;以炉灰渣为试管苗的移栽扦插基质,移栽成活率为100%,扦插成活率为98.6%.试管苗田间栽培试验还证明,这种试管苗生长旺盛,可以收获二次,产量提高了约一倍.     

益母草愈伤组织分化及无性系建立的研究

以益母草根颈为材料,进行了愈伤组织诱导、增殖与分化,分化芽生根,试管苗移栽、定植的研究.结果表明：MS＋6-BA 0.5mg·L-1＋NAA 0.6mg·L-1＋2,4-D1.2mg·L-1是愈伤组织诱导培养的理想培养基;MS＋6-BA0.5mg·L-1＋NAA0.1mg·L-1＋2,4-D 1.5mg·L-1是愈伤组织继代增殖培养的理想培养基;1/2MS＋6-BA 0.2mg·L-1＋NAA 0.1mg·L-1是愈伤组织分化培养和分化芽继代分化增殖培养的理想培养基;N6＋IAA0.2mg·L-1培养基是益母草分化芽生根培养的理想培养基.移栽成活率为94.4%;定植成活率为99.1%;定植成活的试管苗保持野生益母草的所有植物学性状.     

黄秋葵愈伤组织培养及再生体系建立的研究

以具有杂种黄蜀葵嫩茎为材料,采用组织培养的方法,进行了嫩茎的愈伤组织诱导、分化,不定芽的生根以及试管苗的生根继代增殖培养、移栽与定植的研究.结果表明:嫩茎愈伤组织诱导培养和继代增殖培养的理想培养基是MS+6-BA0.75mg/L+2,4-D2.1 mg/L;愈伤组织分化培养的理想培养基是MS+AgNO31.0 mg/L+NAA0.1mg/L+ZT1.6mg/L;1/3MS+蔗糖10g/L+IAA0.4mg/L是不定芽生根培养的理想培养基;试管苗生根继代增殖培养的理想培养基是1/3MS+ABT0.6mg/L+蔗糖10g/L+IAA0.4mg/L.试管苗移栽成活率为93.9%,定植成活率为97.5%.定植的试管苗保持了杂种黄秋葵所有植物学性状和杂种优势.     

隔山消嫩茎无性系建立的研究

为保护野生资源和满足药用栽培的需求,以隔山消的嫩茎为材料,采用组织培养的方法,进行了愈伤组织诱导和分化、不定芽生根、试管苗的生根继代增殖、移栽和定植的研究,建立起嫩茎无性系。结果证明:MS+ZT 0.2 mg/L+2,4-D 2.0 mg/L是嫩茎愈伤组织生长培养的理想培养基;MS+AgNO30.6 mg/L+NAA 0.1mg/L+ZT 0.6 mg/L是愈伤组织分化培养的理想培养基;1/2MS+ABT2号0.8 mg/L+IAA 0.3 mg/L是不定芽生根培养的理想培养基;1/2MS+ABT2号0.6 mg/L+IAA 0.2 mg/L是试管苗生根继代增殖培养的理想培养基;试管苗移栽成活率为91.9%;定植成活率为98%;定植的试管苗长势旺盛、根系非常发达,保持了隔山消的所有植物学性状,翌年鲜块根增收37%。     

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.     

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.     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…