结果表明:(1)引物H16对烟粉虱B型不同种群扩增的特异带,能有效区分烟粉虱B型和Q型、浙江非B/Q型种群;
The results showed that:(1)the specific amplified patterns using the primer H16 could distinguish biotype B populations from biotype Q populations and non-B/Q biotype population in Zhejiang province;
表明根据研究对象和研究目的选择合理的分布型指数,能够提供种群空间分布格局的多侧面信息。
Thus, according to research object and goal, choosing a reasonable distribution index can provide multi-factor information about the spatial pattern of the population.
种群分布格局总体上呈聚集型,随年龄增加聚集强度增加。
The population pattern was of clustered distribution, with the aggregating intensity increased with age.
综合上述结果,说明福建省8个烟粉虱种群均属于生物型“B”。
The results indicated that all 8 populations were of the biotype B.
全年种群密度变化呈单峰型。
虽然同一个居群长期受到相同光周期诱导,但是种群不是有单一相近的开花期,存在着开花光周期反应不同的基因型。
It was observed that there were different genotypes for genetic flexibility in flowering photoperiodic response, although the populations had always been subjected to the same photoperiodic induction.
不连续变化,间断变化:种群内的变化,在种群里两极之间很少或没有中间表现型。
Variation within a population in which few or no intermediate phenotypes fall between the extremes.
在生长季末,种群中根茎在累计长度和重量上均为增长型年龄结构。
The age structure of rhizome is an increasing model at length and weight at the end of growing season.
群落主要植物种群的产量结构呈金字塔型。
预计洄游型香鱼在水库大坝建成后将在飞云江流域消失,但库区中也有可能出现陆封型香鱼种群。
It can be expected that the ayu of migration type will be completely vanish in Feiyun river after building the DAMS across the river.
研究了一类具有时滞的基于比率型三种群捕食者-食饵系统,给出了系统持续生存的条件。
A three-species ratio-dependent predator-prey model with time delays is investigated, conditions are given for persistence of the system.
在分布型研究基础上,探讨了资料代换模型,最适抽样数和种群序贯抽样模型。
The model data conversion, the population sequential sampling and the theoretical sampling number model were also built up in the paper.
本文研究了一类三种群离散型捕食者食饵系统。
In this paper, a class of predator-prey systems of three species with discrete time is studied.
割草场和放牧场硬拂子茅无性系种群分蘖株均属于增长型年龄结构。
The age structures of the tillers of the grass on both pastures for grazing and cutting uses are of an expanding type.
种群的垂直空间分布格局呈随机型或集群型。
The distribution of a species individuals in the vertical space is random or contagious.
在本文研究中,基于利用五个间隔序列的叶绿体dNA单倍型分析,我们提出了猪笼草种群的遗传变异模式。
In this study, we present the patterns of genetic differentiation of pitcher plant populations based on chloroplast DNA haplotype analysis using the sequences of five spacers.
迁飞种群中通常存在着迁飞到他处生殖的迁飞型以及留在本地生殖的居留型,其比例因所处的环境因子不同而异。
A migrant population usually consists of parts of migrant and resident, depending on the environmental conditions that the population underwent.
按林型分类,草类—落叶松林种群分布格局中,均匀分布和随机分布所占比例均11%,聚集分布占78%。
According to the forest type to classify, both of clustered and regular distribution are 11% in the commurity distribution pattern of herbage—Larix forest, the random distribution is 78%.
千人基因组计划旨在发现多个人类种群中发现基因型、为所有形式的人类DNA多态性提供精确的信息。
The aim of the 1000 Genomes Project is to discover, genotype and provide accurate haplotype information on all forms of human DNA polymorphism in multiple human populations.
结果表明:该绒毛番龙眼种群表现为连续型增长种群;
The result shows that the Pometia tomentosa population is a continuous increasing population.
建立了用肉眼就可辨别的乙酰胆碱酯酶显色反应体系,快速检测种群中是否存在靶标抗性及其基因型。
A chromogenic system was established to visualize the presence of target resistance and the relevant genotypes in the population.
中纬度的地理种群代表过渡的“中资源生态型”。
The high-latitude population represented the extreme of "low-resource ecotype" in the variation continuum (low innate growth, low growth plasticity and high resistance to specialist herbivore).
基于对蚂蚁种群中兵蚁和工蚁在觅食过程中合作关系的仿生,提出了一种改进型蚁群算法。
A novel ant colony algorithm is proposed based on the bionics of cooperation relation between soldier ant and worker ant in the foraging process.
研究表明,种群个体分布格局为随机分布,种群模型属稳定增长型。
The results indicated that the distribution pattern of population individuals was random distribution pattern, and the population model was stable growth-oriented.
研究表明,种群个体分布格局为随机分布,种群模型属稳定增长型。
The results indicated that the distribution pattern of population individuals was random distribution pattern, and the population model was stable growth-oriented.
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