管胞长度的种源区和产地效应很小,无一定的地理变异趋势。
There were very small effect of seed source and no definite geographic pattern in tracheid length.
影响管胞形态地理变异的气候因子中,水湿条件是主导因素,其次是温度。
Among the climatic factors which affect the geographic variation of tracheid morphological, moisture and rainfall are the principal factors, secondary is temperature.
在其他几个性状上,亦经证明有少量地理变异,诸如皮部的某些单萜烯浓度。
Small amounts of geographic variation have been demonstrated in several other traits, such as cortical concentration of certain monoterpene.
分析结果表明,麻竹表型性状的地理变异趋势是以经向变异为主,纬向与垂直变异不明显。
The analysis has shown that the geographical variation trend of phenotypic traits has given priority to longitude, and no obvious variation in latitude and altitude.
在自然选择压力空间变化的作用下,广布种的形态、生理和生活史特征往往在不同地区的种群间发生地理变异。
Due to spatial variation of selection regime, morphological, physiological and life history traits of widely-distributed species may vary genetically among geographic populations.
因此,深入了解目前狍各地理单元种群的分子变异,可以为我们制定保护策略提供重要的依据。
Therefore, understanding the morphological and molecular variation of different geographic population of roe deer is important for us designing conservation strategies.
方法结合地理距离和遗传距离的关系,分别建立基于三种经典遗传距离的群体遗传空间结构异质性的变异函数模型。
Methods Spatial semivariogram models were set up based on genetic distance by analyzing the relationship between geographic distance and genetic distance.
查明了通辽地区第四纪地质实体各期岩相古地理、沉积构造特征、地层空间结构、沉积物粒度的空间变异,据此进行了地层分区。
Such as the sediment structure characteristic of paled geography and formation the spatial structure of formation, the spatial variation of sediment size.
各地理种群间的遗传距离为0~0.016,表现为种下的遗传变异,这与RAPD分析得出的结果相一致。
Genetic distance among different populations are 0~0.016, which is belong to infraspecies genetic variation, this result is consistent with RAPD analysis.
人们认为这种梯度变异可能是降水量,温度也许还有光周期等地理趋势造成的结果。
The cline is considered the probable result of geographic trends in precipitation, temperature, and perhaps also photoperiod.
应用现代地统计学和地理信息技术在上海崇明岛研究了规模经营的农场土壤有效养分含量与作物产量的空间变异规律;
Spatial variability of soil nutrient and crop yield in Shanghai Chongming Island large-scale management farm was studied by modern geo-statistical and geographic information technology.
云南松木材的松脂含量主要决定于遗传因素,但又受生长地理位置变异的影响。
The resin content in timber of Yunnan pine was mainly controled by hereditary substance, and also affected by the geographic variation of grow place.
试验应用地理信息系统和地统计学方法对铁岭凡河稻田土壤有效中量、微量元素的空间变异特征进行了研究。
Combined with GIS geography statistic was applied to analyze the spatial variability of soil available medium-microelements of the paddy yield in Fanhe township of Tieling county.
采用地统计及地理信息(GIS)技术研究了山东省淄博玉米产区土壤砷含量空间变异性及其分布特点。
Spatial variability and distribution of soil arsenic in Zibo maize producing area, Shandong Province were studied using geostatistics and geographic information system (GIS) techniques.
本论文包括三部分: 第一章:多足动物线粒体基因组和地理种群遗传变异分析的研究进展。
This thesis includes three chapters: Chapter 1: Recent progress on myriapoda mitochondrial genome and genetic variation analysis of Otostigmns (O.
族群特性在穿越一个地理区不同的地理环境之间之变异性。
Variation in population characteristics across a geographical area; may be related to environmental gradients or may have no functional significance.
用淀粉凝胶电泳法检测长江三角洲白山羊不同地理群体12个结构基因座位上的变异,探讨了群体间的基因流动情况。
Genetic variations of 12 structural loci of different Yangtse River Delta white goat populations were examined by starch gel electrophoresis and gene flow was analyzed.
结果中国人群HLA -A位点的第一主成分自北向南形成了明显的遗传地理梯度变异。
Results the first principle component of the HLA -a loci in the Chinese population has obvious geographic genetic structure from north to south.
因在地理上的分隔,牠们最少有三种变异,由于这三种变异有著明显不同,牠们最终可能被分为不同亚种。
At least three geographically separate variants are differentiated and there is the distinct possibility that the species will eventually be divided into several subspecies.
HPV变异株的分布与地理位置关系密切。
HPV变异株的分布与地理位置关系密切。
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