种质的

The result suggested that Pob46 was a good resistance resource to head smut for the lowest incidence rate itself and in test combination, and Pob45 was also a relative resistance resource for the lower incidence rate itself and in test combination.

结果表明Pob46自身的发病率最低，测交组合的平均发病率也最低，是一个对丝黑穗病有较好抗性的CIMMYT种质资源；Pob45自身的发病率稍高，但测交组合的平均发病率不高，也是一个有一定利用价值的CIMMYT种质资源。

Maize germplasm gets more and more mixed. To make full use of heterosis, it is very important for maize breeders to distinguish heterotic groups and to design heterotic patterns.

玉米种质日趋复杂，对现有种质资源进行杂种优势群的划分，构建杂种优势模式的基本框架，将对进一步提高杂种优势利用水平，对当前和今后的玉米育种工作有重要的指导意义。

According to all-around investigating on wild Lonicera fragrantissima in various mountainous areas of Henan Province, this article has maken clear Lonicera fragrantissima regional distribution, Total resources quantity, biologic characteristics, ecologic characteristics, natural distribution patterns, the value of development and utilization, using form, cuttage and breeding technology, the collection and protection of wild idioplasmic resources and so on. It detailedly describes wild resources distribution, biologic characteristics and ecologic characteristics. It has classified and selected a batch of superior trees according to the differences in fruits shape, fruits color, leaf shape and shape of the crown of trees. It has based on the nutrition and medication ingredient analyzed the using methods of fruits and leaves, and the way of exploitation.Through the experiment on Lonicera fragrantissima cuttage and breeding technology, transplant and domestication technology, it has provided the concrete technical measure of idioplasmic resources use and the preservation for Lonicera fragrantissima.

本文通过对河南省各山区野生郁香忍冬资源的全面调查与研究，摸清全省郁香忍冬资源的区域分布、资源总量、生物学特性、生态学特性、自然类型与经济性状、郁香忍冬的开发利用价值、利用形式、扦插育苗技术和野生种质资源收集保存与保护方法措施等，对河南省郁香忍冬野生资源的分布，生物学特性、生态学特性进行详细描述总结；根据果形、果色、叶形、冠形的差异性进行了类型划分，并选出了一批优树；根据果实、叶片中的营养与药用成分分析、果、叶利用方法研究，分析了其开发利用途径，并开展了郁香忍冬扦插育苗试验和苗木移栽训化试验，为郁香忍冬种质资源利用和保存提供了具体技术措施，其主要结果如下： 1、郁香忍冬属中性偏阳的低矮灌木树种，在灌木坡上当其处于上层空间时或纯林分布时，生长最好。

The study was to evaluate the genetic diversity of 69 tea cultivars of the preconcentrated core germplasms of Camellia Sinensis in China by the random amplified polymorphic DNA.Among 50 arbitrary primers, 32 primers could generate enough amplified bands for all the strains in this study.

以中国茶树初选核心种质中的69份种质为实验材料，采用改良的SDS法提取它们的基因组DNA，并运用优化的RAPD 分析体系对基因组DNA进行分子标记遗传差异研究。

China was one of Pyrus genus provenances,Chinese pear played an important role in fruit production.Genetic linkage map of pearPyrus L.

我国是世界梨属植物的起源中心之一，梨树的栽培面积和产量均居世界首位，丰富的种质资源对于定位和克隆一些重要性状的基因及梨树分子遗传育种和种质改良具有重要的意义。

In this experiment, methods of artificial inoculation were used to evaluate 17 species (including 26 types), 2 mutants, 3 cultivars, and 4 hybrids of Malus for their resistance to Valsa Mali. After 3 years repeated trials, it showed that 7 of them are highly resistant 2 are resistant, 2 are medium resistant and others are different grades of susceptible resources.

在1983年接种方法研究的基础上，于1985—1987年采用人工田间砸伤接种法，对苹果属17个种的26个类型、2个变种、3个品种和4个杂交种，共35份种质资源材料进行抗腐烂病的系统鉴定，经3年重复，鉴定出高抗级种质资源7份，一般抗2份，中抗2份，其它均为感病各级的资源。

The plum-apricot germplasm resources were analyzed by RAPD markers. The results showed that plum-apricot was more close to the related species with low polymorphism. The clustering results were indicated that most plum-apricots were more close to Chinese plum with the similarity of morphological description, thus the female parent for plum-apricot was probably plum in the occurrence naturally. The result of S allele-specific PCR amplification showed that plum-apricot had only one band with the similarity with plum, thus evolution similarity of plum-apricot was more close to plum than apricot.

5对参试杏梅种质资源的RAPD分析表明，杏梅与其近缘种之间亲缘关系较近，多态性相对较少；聚类分析结果显示大部分的杏梅与中国李的遗传距离较近，与形态学上的描述基本一致，因此杏梅种质资源在自然界中产生时，其母本可能为李；同时S等位基因的扩增结果显示杏梅与李的扩增条数一致，都为一条，因此推断杏梅与李的进化趋同性可能较杏更近。

The experiment was conducted to analyze and evaluate the agronomic trait of germplasm resources and genetic diversity of hardein from 50 barleys by 8 agronomic trait and acidic poly acrylamide gel electrophoresis.

为给新疆大麦种质资源的开发利用和今后新疆大麦高产优质新品种的选育提供依据，根据大麦的8个农艺性状表现，采用酸性聚丙烯酰胺凝胶电泳对国内外50份大麦种质资源的农艺性状和醇溶蛋白的遗传多样性进行了分析评价。

As a native of Litchi chinensis, China is abundant in germplasm resources in the tropical and south sub-tropical zone. In Hainan province, Some big wild litchi trees and batches of wild litchi have been found in the tropical origenate forestry of Bawang, Wuzhi, Jianfeng, Diaoluo, and Jingu Mountains. In addition, there are 4,000hm2 of litchi seedlings scattered on Hainan island. They comprise a huge gene pool of litchis germplasm resources,Which is both bases of seedling selection at present and source of genetic breeding in the future.

中国是荔枝的发源地，种质资源非常丰富，仅海南就有4，000hm~2荔枝实生树，此外，在坝王岭、五指山、尖峰岭、吊罗山和乐东金鼓岭上还有成片的野生荔枝，一起构成了一个巨大的海南荔枝种质资源库，既是我们目前进行实生选种的基础，又是将来杂交育种的源泉。

Although a certain correlation with the morphological classification based mainly on the characteristic of tubercles on the ripe fruit skin,the range of classification by RAPD was more detailed than that of morphological classification.

结果表明，大多数种质相似系数在55%～80%之间，说明他们之间的亲缘关系较近；在相似系数为0.61的水平上，30份海南荔枝种质被分为4组，与以龟裂片特征为主要分类依据的形态分类有一定的相关性，但是RAPD分类比形态分类的分类范围更细。

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。