依据性状

Pharmacognostic studies on the shape, microscopic structure and morphology of Fructus Glychrrhizae - an adulterant of Fructus Xanthii were earried out and compared with that of Frueus Xanthii to provide a basis for their identification.

本文对苍耳子的混淆品刺果甘草Glycyrrhiza pallidiflora的果实进行了生药性状、显微特征和薄层层析鉴别，井与正品苍耳子做比较，为鉴别二者提供依据。

This study provides a new method for analysis of genetic structure in biotic survival traits, and has important significance in the field of Biology.

为以后研究生物生存性状遗传结构提供了新的方法依据，同时也具有重要的生物学意义。

F2 generation experimental design has been used, collect 436 blood samples of chicken of the F2 generation individual with cockscomb trait record.

该文建立鸡F2代资源群体，并就冠型性状进行了微卫星连锁分析，为冠型基因的定位提供了一定的科学依据。

On account of individual heredity diversity, gutta-percha content in pericarp and samara or even different individual samara was significantly different among different clones.

以16个产地的主要地理气候特征、主要生长指标和含胶量等关键性状指标为依据，进行聚类分析，将杜仲产地分为5类。

The study suggest:(1) The observation of satellites in root tip and multiplex PCR makers could accurately identify the homozygous and the heterozygosis of 1BL/1RS translocation.(2) Through the restoring degree we could confirm the success of the transfer. The combination of the restoring degree and the agronomy property could increase the efficiency of practical application.(3) This study proposed the transformation from the physiological male sterile to the genetic male sterile, and then establish a method of utilize the strong superiority crosses.

其中复合引物PCR更适合于回交后代中大量目标种子的筛选；(2)恢复基因转育后代定株与不育系测交，依据测交恢复度可准确确定恢复基因在回交后代的延续，恢复基因定株定向转育与性状选择结合可大大提高转育后代的实际应用效果；(3)本研究提出的粘类小麦雄性不育恢复基因Rfv1定向转育体系，可有效地实现小麦由化控强优势组合向三系强优势组合的定向转化，即生理型不育途径向遗传型不育途径的定向转化，进而建拓一套杂交小麦强优势组合多途径利用新体系。

Although the conservative termed secondary homothallism inherit mode and absence of wild resources, the commercial strains encompass extremely limited genetic variation, in this paper we revealed some variations of phenotypic and genorypic characteristics among the tested strains in mycelium growth rate, field performance, esterase isozyme, soluble protein and AFLP fmgerprint.

双孢蘑菇由于自身保守的次级同宗配合遗传方式以及长期野生种质资源的匮乏，造成现有栽培菌株之间相似性程度较高，尽管这样，本试验采用不同方法，从菌丝生长速度、农艺性状、蛋白质以及基因组各方面系统地反映了双孢蘑菇主要商业栽培菌株间的表型及遗传差异性，为双孢蘑菇种内杂交育种提供了科学依据。

Many kinds of genetic resources of fine characteristic are filtered by studying, and provides fine idioplasm which can be used for breeding and studying genetic resources.

笔者主要对西藏春青稞种质资源中优异种质进行评述，筛选出一批具有一种或一种以上的优良性状的遗传资源，并提供可利用的优良种质，为青稞育种及基因资源的研究提供依据。

Use of the candidate gene information in marker assisted selection or introgression improves the litter size of pigs more efficiently.

本研究为产仔数等繁殖性状的标记辅助选择或标记辅助渗入提供了理论依据，为提高猪繁殖效率奠定了基础。

Different types of vaginitis leucorrhea different traits can be used as the basis for identification.

不同类型的阴道炎白带的性状不同，可作为鉴别的依据。

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。