种质的

To establish the stable theory bases of choiceness gene induced, expression and breeding of high yield and high ephedrine content through series research the molecular biology.

进行系统的分子生物学研究，为麻黄的优良基因导入、表达及高产与高含碱量新种质的选育奠定坚实的理论基础。

The effects on core collection development with different sample proportionsDuring core collection development a difficult task comes when attempting to reduce the sample size of a large collection without losing its diversity.

不同聚类方法和取样策略的评价聚类方法与核心库的构建有着密切关系，不同的聚类方法对稻米品质性状核心种质的构建可以产生不同影响。

The authors proposed that heterochromatin change in genome might play an important role in balancing the germplasms between maize and its distant relatve after cross and parthenocarpy.

这种变异不仅存在于表型不稳定的早代孤雌系中，而且还存在于表型稳定的高代系中，造成这种变异的原因可能是因为远缘种质的引入影响到遗传平衡进而引起染色体发生结构重排并引起染色质的变化，这种变化与玉米染色体组中非同源染色体间存在的同源片段和因此造成的减数分裂过程中非同源染色体配对有着直接的关系。

Secondly,we successfully isolated microsatellite sequence of W.pigra using two methods and develop its SSR markers application in W.pigra.The detail contents and results are listed below: 1.Growth aquaculture habits and quality assessment research(1) Using the methods of paraffin-embedded myocardial specimens and photomicrography,we dissected and analyzed the visceral organ of W.pigra,including of cavity,swallow,esophagus,crop,bowel,rectum,parasomal sac stomach,testicle,seminal vesicle,vasa deferentia duct,ejaculatory ball,prostate gland and skin.

本研究首先从蚂蟥内脏结构、皮肤表皮细胞类型的分布等形态学研究开始，进一步研究了蚂蟥的生理、生长、繁殖习性和药材中农残、重金属的积累，并对不同炮制品、不同种质的蚂蟥的内在质量进行系统的评价。

And meanwhile, the result show that, stomatal restriction was the main factor of the net photosynthetic rate's decrease in the leaves of 4 Dactylis glomerata L. when stress in slight water stress and the non-stomatal restriction was the main factor of the net photosynthetic rate in the leaves of 4 Dactylis glomerata L.

盆栽控水条件下4份鸭茅光合作用机理的研究表明，随着干旱胁迫程度的加强，4份鸭茅种质的净光合速率、蒸腾速率、气孔导度及叶绿素含量均有较大幅度的降低，其中抗旱性强的ZXY04P-201下降的速度慢，幅度小，而抗旱性差的ZXY04P-239下降速度快，幅度大。

Tissue culture plate was proved to be excellent to provide convenient microscopic observation and suitable space for microalgal living.

利用组织培养板方便的显微观测条件和适宜容积提供微藻存活的空间，在不同培养条件下，进行微藻群落演替、及时显微跟踪检测和优势种分离，可以使野外水样初期低生物量种类优势化，以利于纯系种质的获得。

The domestic accessions exhibited high relatedness of root color within each sub-group. The accessions with red-coated root were nearly put into one sub-group, while the accessions with white and green-coated or white-coated root were put into the other sub-group.

国内种质的分类表现出了与根皮色密切相关的特征，基本上是根皮色为红色的聚为一个亚组，根皮色为白色和绿白色的聚为一个亚组。

This study has laid down a good foundation for effective study and utilization of Gaozhou wild rice.

高野应用核心种质的筛选为该资源的高效研究利用奠定了良好的材料基础。

In order to find out the pureness of parental Carassius auratus Tungting and make an analysis of morphological genetic law between parent and progeny, the study sets out to test 27 parents and 32 offspring of Carassius auratus Tungting from Beiming lake.

为查明洞庭青鲫原种亲本种质的纯度，进行亲本、子一代之间形态学性状遗传传递规律的分析，测定了从北民湖引入的洞庭青鲫原种亲本27尾和子一代32尾，对其7项可比性状和可数性状进行统计分析，计算出各性状的均值、标准差、变异系数。

In order to find out the pureness of parental Carassius auratus Tungting and make an analysis of morphological genetic law between parent and progeny, the study sets out to test 27 parents and 32 offspring of Carassius auratus Tungting from Beiming Lake.

摘 要：为了查明洞庭青鲫原种亲本种质的纯度，进行亲本、子一代之间形态学性状遗传传递规律的分析，测定了从北民湖引入的洞庭青鲫原种亲本27尾和子一代32尾，对其7项可比性状和可数性状进行了统计分析，计算出各性状的均值、标准差、变异系数。

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。