种质的

The research of this paper is the first step of the System of Germ Plasm Resource Construction,the aim of that system is to build a platform on data management.

该下载资料由本站会员上传，如果侵犯了您的权力，请通知我们，将立即删除！摘要本课题是种质资源系统建设的第一步，其目的是建立一个数据管理的平台。

These results provide a beneficial reference for genetic breeding of Prunus persica.

该研究结果对桃种质资源的鉴定，杂交亲本的选择具有一定的参考价值。

When 20% accessions were selected, Mahalanobis distance and Ward's method using stepwise clustering combining with preferred sampling can construct a most reprehensive core collection and was the most suitable method for constructing M. sieversii core collection.

本研究显示，当取样比例为20%时，采用马氏距离，利用离差平法和法进行多次聚类，结合优先取样策略构建的核心种质最有代表性，是构建新疆野苹果的最佳的方法。

There are only 200 seed trees of Neolitsea sericea,which produce 100 kg seeds in high yield year.

舟山新木姜子Neolitsea sericea分布在普陀区的朱家尖、桃花、普陀山和定海区的大猫岛，其分布特点是孤立，散生，且范围极小，无成片分布，共有结果母树300余株，种质资源较为贫乏，加之不合理的采种，迄今大年种子产量仅为100 kg。

Study on the variation of PAL activities in the inoculated leaves were closely correlated with the Stylosanthes resistance against anthracnose. The expression level of PAL gene in Mineirao is higher than that in CIAT2312 after inoculation with the test of semi-quantitative RT-PCR. And PAL gene had possible function of resistance to anthracnose.

本研究通过对不同柱花草种质对炭疽病的抗性鉴定，在验证了PAL 在Mineirao 柱花草抗炭疽病方面起一定作用的基础上克隆出PAL 基因，利用半定量RT－PCR 检测该基因在两种柱花草中的差异性表达，分析表明，Mineirao 表达量高于CIAT2312 柱花草，推测出该基因与抗炭疽病有关。

The main results were as follows:1.50 Xanthomonas axonopodis pv.citri isolates were obtained from diseased materials of several citrus cultivars collected from Hengyang,Chenzhou and other areas of Hunan province.

同时，选择高感病的主栽品种甜橙进行试验，获得的抗病新种质，从根本上控制柑橘溃疡病的危害，对柑橘产业意义重大。

The results also reflect that the genetic bases of the brown and green cottons are narrow,and they are at the same genetic diversity level.

可能是因为共同的基础种质资源、相同的育种目标及相近的育种方法造成此结果。

The results showed that the two conclusions of drought –resisting sequence got by the methods of coleoptile length in germination period and drought index in field test were basically consistent. The conclusions mentioned above pointed that the method of coleoptile length was effective to identificate drought-resisting wheat germplasm in early stages.

两者对比发现：利用胚芽鞘长度法对萌芽期冬小麦抗旱性强弱的鉴定结果与田间试验下苗期及产量表现综合分析所得出的抗旱性强弱顺序基本一致，说明胚芽鞘长度法对于早期鉴定抗旱小麦种质具有一定的可行性。

300 pieces of idioplasm resources of the Tibetan edible cultivation spring naked barley is identified for characteristic of shape, agronomic characters, rust-resisting property and grain thick protein,β-grape polymerization sugar and Vitamin E and so on from the Tibetan different region, which are analysed result in, for one thing, multiplicity of Tibetan spring naked barley is quite rich for the variation of the awn, leaves and the grain color, and multiple property are highest; Secondly, it has some fine hereditary characters of early maturation, big spike, many grains, many arrises and the strong anti-rust quality; Thirdly, genetic potential which is used possibly is enormous for characteristic of dense spike, exiguous spike, naked grain , the hook awn, short stem, the anti-rust and so on ; Fourthly, thick protein,β-grape polymerization sugar and Vitamin E of grains are rather difference to environmental condition of the various areas.

从西藏各地征集的300余份食用栽培春青稞种质资源，从形态特征、农艺性状、抗锈性和籽粒粗蛋白、β-葡聚糖含量、维生素E等特征特性鉴定、评价。分析结果认为：（1）西藏春青稞多样性极为丰富，如芒、稃和籽粒颜色，具有变异最为丰富，多样性最高的特点；（2）具有早熟、大穗、多粒、棱型多，以及抗锈性强等和耐各种不良环境因素的优良遗传性状；（3）具有密穗、稀穗、裸粒、钩芒、矮生、抗锈等可利用基因潜力巨大等特色；（4）籽粒粗蛋白、β-葡聚糖、维生素E等成份因各地区环境条件不同差异较大。

The arithmetical averagescluster analysis was used to construct the dendrogram of 42 coconut cultivars from home and abroad by these primer ...

供试的不同来源的5个高种和8个矮种椰子种质材料中，高种的多样性高于矮种。

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。