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Obtains its physical property through the gemology convention test the related parameter, has carried on the division for the first time according to the albite jade\'s physical property reference jadeite\'s classification to the albite jade\'s idioplasm.

通过宝石学常规测试得出其物理性质的相关参数;根据钠长石玉的物理性质参照翡翠的分类首次对钠长石玉的种质进行了划分。

The patterns and changing of The Changbai Mountain forest ecosystem services affected by human activities were explored in this paper. The impact of human activities on Changbai Mountain forest ecosystem services include positive effects and negative effects, they were expatiated in the paper. The positive effects include protecting idioplasm resources, wildlife and natural landscape, and forest fireproofing, and so on. The negative effects contain the capacity of biodiversity, purifying environment, regulating climate, buffering disaster and supplying product etc.

摘 要:本文分析了人类活动对长白山森林生态系统服务功能影响的方式和利弊,并将其影响分为正面影响和负面影响进行阐述,其中正面影响为生物种质资源保护、野生动植物资源保护、森林防火、自然景观保护等;负面影响为生物多样性维持能力下降、影响生态系统对大气和气候的调节过程、削弱净化环境的能力、影响水文调节能力、影响灾害缓冲能力、降低生态系统产品供给能力、改变营养物质的贮存和循环过程等。

However,the considerable input and costly routine expenditure for cold storageis far beyond the afford of many developing countries.Hence,a great variety ofscarce accessions of germplasm are disappearing from the sight gradually,dueto the untimely and ineffective conservation.

巨大的建库投资和昂贵的运转费用已远远超出发展中国家的承受能力,使得许多珍贵的种质资源由于得不到及时有效的保护而逐年流失。

Molecular systematics on germplasm resources of oak silkworm, Antheraea pernyi, including genetic diversity, cultivar taxonomy and microevolution within species, were investigated using Random Amplified Polymorphic DNA , mtDNA sequence analysis and population genetic analysis.

中文题名柞蚕种质资源的分子系统学研究副题名外文题名 Molecular systematics on germplasm resources of Antheraea pernyi 论文作者刘彦群导师鲁成向仲怀学科专业特种经济动物饲养学研究领域\研究方向蚕的生物技术与遗传育种学位级别博士学位授予单位西南农业大学学位授予日期2003 论文页码总数143页关键词蚕种质资源柞蚕馆藏号BSLW /2003 /S885 /1 柞蚕业是我国的一项传统产业,在现代国民经济中仍然具有资源配置、经济和生态的合理性,有着广阔的发展前景。

Result The phenological characteristics of Nandina domestica from different areas and germplasm resources were basically identical; the growth patterns of cultivated type and wild type were also basically identical while the cultivated type grew faster than the wild type; both the two types grew very quickly in young stage while the annual growth of new shoots and the growth patterns of leaves all followed the fitting curve of the Logistic equation.

结果]南天竹各地理种质资源物候特征基本一致;栽培型和野生型生长规律基本一致,但栽培型的生长速度大于野生型;不管是栽培型或是野生型南天竹的高生长在幼龄期都比较迅速,其新梢的年生长、叶片生长规律都遵循Logistic方程的拟合曲线。

Based on the brief introduction of the ohgin,distribution and the collection and conservation of the germplasm resources of apricot,mainly on the variety classification,pollination biology,evaluation of palynology and molecular biology,the genetic and variation characters of hybrid progeny,breeding objectives and technique were reviewed.

文摘:在简要介绍杏的起源、分布及种质资源收集保存的基础上,着重对杏品种资源的分类、授粉生物学、孢粉学及分子生物学评价以及杏杂种后代遗传变异特点、育种目标及育种技术进行了综述,并提出了今后的研究方向。

Based on the brief introduction of the ohgin,distribution and the collection and conservation of the germplasm resources of apricot,mainly on the variety classification,pollination biology,evaluation of palynology and molecular biology,the genet

文摘:在简要介绍杏的起源、分布及种质资源收集保存的基础上,着重对杏品种资源的分类、授粉生物学、孢粉学及分子生物学评价以及杏杂种后代遗传变异特点、育种目标及育种技术进行了综述,并提出了今后的研究方向。

Upon these plants, some germplasm resources were collected at home and abroard, and their morphology, palynology, cytology, growth and development habit, fruit economy characteristics were studied. The extraction methods for DNA of Lonicera Caerulea L. and reaction system of RAPD were also discussed in the project. And it was the first time to study the genetic diversity, relationship and classification of Lonicera Caerulea L on wild resource in Northeast of China and subsection using RAPD.

针对这些问题,我们收集了国内外的种质资源,从形态学、孢粉学、细胞学、生长发育习性和果实经济生物学性状等方面对东北地区野生蓝靛果忍冬的生物学特性进行了系统研究;对蓝靛果忍冬DNA的提取方法和RAPD的反应体系进行了详细探讨,并首次运用RAPD技术分别对东北地区野生资源和蓝果亚组种间的遗传多样性和亲缘关系、分类等问题进行了研究和分析。

The female parents are 4 choice [1] ness clones in Chinese fir primary orchard. The male parents are 3 polyanthus clones in the gene pool of old Chinese fir, the mixed pollen of these clones and all the clones in this gene pool. The testing woods were founded with 18 cross grouping which were obtained by the using of NCⅡ.

以经过子代测定的杉木初级种子园中的4个优良无性系为母本,老杉木种质资源库中的3个花芽较多的无性系及其混合花粉和种子园混合花粉为父本,采用测交系交配设计进行杂交制种,获得18个杂交组合并以此营建试验林。

The faintest color of the bud color is yellow green. In addition, the variation-coefficient of some morphological traits is very low such as the cotyledon length, the cotyledon width, the cotyledon color, the silique length and so on. The Cluster analysis was based on the morphological data. When the genetic distance was 7.61, 21 accessions were clustered into 4 groups. The accessions of the group 1 had white petal, mezzo flower stalk and the earlier pick period, which is divided into two subgroup when the genetic distance was 5. 98. And the model was Ba39 and Ba35. The accessions in the group 2 had the very slender flower stalk and the middle pick period, that model was Ba27. The accessions of the group 3 had yellow petal, the thin flower stalk and the later pick period, that model was Ba43. The main characters of the group 4 were that it had the latest pick period and many leaves.

基于形态性状的聚类分析,在遗传距离7.61处,把21份芥蓝种质划分为4类,其中类群G1包括14份材料,其植株的生长势中等,株型较为一致,花瓣颜色均为白色,花薹粗细较为适中,平口时期较早,在遗传距离5.98处自然形成2个亚类,分别以Ba39和Ba35为代表;类群G2包括2份材料,即Ba27、Ba33,其植株的生长势较弱,花薹很细,平口时期相对居中,代表材料为Ba27;类群G3包括4份材料,即Ba05、Ba09、Ba38、Ba43,其植株的生长势较弱,子叶颜色、叶柄颜色、花茎颜色、花蕾颜色均为黄绿色,花瓣颜色为黄色,花薹较细,平口时期较晚,代表材料为Ba43;类群G4包括1份材料,即Ba41,其植株的生长势较强,平口时期很晚,并且叶片数很多。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?