查询词典 populations

Methods Microsatellite markers of mice and rat were adopted to develop markers and methods suitable for genetic monitoring for SPF golden hamster population and its parent conventional population from Chengdu Institute of Biological Products by fluorescence-based semi-automated genotyping method. Genetic diversity and differences of the 2 golden hamster populations were analyzed based on the result of microsatellite alleles.

应用小鼠和大鼠的微卫星标记筛选适于金黄地鼠遗传检测的微卫星标记，并结合微卫星荧光标记－半自动基因分型技术，对成都生物制品研究所的SPF级金黄地鼠及其来源的普通级金黄地鼠进行遗传检测，计算其群体遗传学参数。

P. denasta harbored the three chlorotypes, two of which were characteristic of its two parental species respectively. The third chlorotype was extensively distributed in seven of the ten P. densata populations analyzed, and might represent a mutation type or have been derived from an extinct parent. Population differentiation of P.

TT和GC分别是油松和云南松种特异性叶绿体单倍型，而在高山松群体里则三种单倍型均有分布，而且TC单倍型广泛地分布在7个杂种群体中，该单倍型很可能来源于点突变或第三个已灭绝的亲本。rbcL基因检测到的高山松群体分化系数很高（G〓=0.533）。

4 Recurrent selection basic breeding populations-WBMCo、 WLSCo、 LBMCo and LLSCo (character1-Chinese South west germplasm; character 2-American germplasm; character 3-torrid and semitorrid zone germplasm) were synthesized using American germplasm of Stiff Stalk Synthetic BSSSC9、Lancaster, Mesican torrid zone germplasm of Me Huang Jiou , Thai Land semi-torrid zone germplasm of Sauwan, Chinese south-western germplasm of Wu Xiand Lan Hua Zhao as main parent germplasm population.

本试验以美国种质坚杆综合种BSSSC9、Lancaster、热带种质墨黄九、亚热带种质苏湾4个国外群体和中国西南种质巫溪W_(14、兰花早2个地方群体为主体，掺和含有它们血缘的优良自交系，品种群体，首次合成了WBMCo、WLSCo、LBMCo、LLSCo 4个轮回选择育种基础群体(代号的第一字母为国内西南地区种质，第二个字母为北美种质，第三个字母为热带、亚热带种质)，并与6个主体亲本种质群体进行了比较。

The very significant partial correlation was also detected between grain length and grain width with the correlation coefficient of more than 0.90 in three populations.?

偏相关分析还表明粒长与粒宽间存在极显著的正偏相关且相关系数在三个群体的估算中均大于0.90。

The distribution pattern of ten Tsuga tchekiangensis populations in the Mang Mountain were analyzed by the variance/mean ratio method,and their aggregated intensities were were measured by using the following indices:negative binomial parameter,dispersal index,clumping index,crowing mean index and patchiness index.

采用方差/均值比率法对10个南方铁杉种群的分布格局类型进行了分析，同时，采用负二项式参数、扩散性指数、丛生指数、平均拥挤度指数和聚块性指数计测这些种群的空间聚集强度。

And such methods V/m ratio t-test, negative binomial parameter, index of dispersion, Cassie index, index of clumping, index of mean crowing and index of patchiness are employed to analyse various dominant populations of Heptacodium miconioides community in the Tiantai Mountain in Zhejiang province and distributive patterns of Heptacodium miconioides community in different quadrats, and this paper also examines the intensity of Heptacodium miconioides population in different quadrats by means of stand classes.

摘 要 以浙江省天台山七子花群落为研究对象，采用相邻格子样方法取样数据，应用方差／均值比的t检验法、负二项参数、扩散型指数、Cassie指标、丛生指标、平均拥挤指数和聚块性指数等方法，分析了七子花群落各优势种群以及七子花种群在各样地中的分布格局，并分立木级对七子花种群在不同样地内的集群强度进行了测定。

Penna biological model of death and reproduction of the law , the application of this law can simulate the number of biological populations .

生物模型中的死亡和繁殖规律，运用此规律可以模拟生物种群的数量。

In the biological systems of nature, because of randomicities in the development of the biological populations, it is very effective to simulate the population dynamics. In this field, there are many kind of ways to solve problems in biology, Penna model, proposed by T.

在生物界中，由于生物种群的发展变化有许多的随机性，因此，用计算机来模拟生物群体的演变发展也取得了一定成效，1995年T.J.P。

Generally,populations with late flow-ering are usually more sensitive to photoperiodism.

每轮选择使群体单株穗数分别增加5.9%和13.6%，穗粒重增加12.6%和9.8%。

YIGAL C Populations of Phytophthora infestans in Israel underwent three major genetic during 1983 to 2000 PHYTOPATHOLOGY , 2002,3

黄河%程双清%徐天宇我国北部马铃薯晚疫病菌生理小种的发生和变化植物病理学报， 1981，1

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。