种质的

Different type idioplasm resources paddy rice adult plant character and paddy rice quality character overall outlineThe birth characteristic, adult plant shape, ear of character of idioplasm resources agronomic characters have the extremely remarkable difference, like weight of a thousand seeds change in 19.67-40.9g, in 18 kind of hull color by brown yellow variety most, in 9 kind of awn colors are most by the achromatic color.

不同类型种质资源水稻植株性状及稻米品质性状的总体概述种质资源水稻的生育特性、植株形态、穗部性状等农艺性状均具有极显著的差异性，如千粒重变化在19.67-40.9g，18种颖壳色中以褐斑黄色样本数最多，9种稃尖色中以无色最多。

In this paper, the prospect and urgent problems of longan germplasm resources are discussed.

本文探讨了龙眼种质资源的研究现状、前景及尚待解决的问题，并分析了今后进一步开展龙眼种质资源研究的方向与重点。

The comprehensive evalucation resulted in a strong drought resistance group including ZXY04P-201、ZXY03P-227、ZXY03P-122 and ZX Y04P-136, a weak drought resistance group including ZXY04P-101、ZXY04P-89,ZXY04P-239 and a intermediate group including the others according to the the above indicators. 3. The results of study on drought mechanism for 4 Dactylis glomerata L. under continuously water stress and rewatering show: the water saturation deficit of leaves arose hastily, and ZXY04P-239 changed most obviously while ZXY04P-201 changed only slightly under drought stress. ZXY03P-173 and ZXY04P-201 increased in the relative plasmalemma permeability and the soluble sugar content while thant of ZXY04P-75 and ZXY04P-239 showed the trend of initial increasing, reaching the peak at the 8th day, then decreasing under drought stress.

20份鸭茅种质幼苗期抗旱性研究表明，干旱胁迫条件下，所有材料的株高、生物量显著下降，叶片脯氨酸和可溶性糖作为重要的渗透调节物质，其含量迅速增加，质膜相对透性的数值变大，细胞膜受伤害程度增大，水分饱和亏缺值变大，植物保水能力变弱，胞间CO2浓度增大；净光合速率、蒸腾速率、气孔导度和叶绿素含量等指标测定值减小，通过20份鸭茅种质苗期抗旱性综合评价，发现ZXY04P-201、ZXY03P-227、ZXY03P-122、ZXY04P-136属强抗旱性材料，ZXY04P-101、ZXY04P-89、ZXY04P-239属弱抗旱性材料，其他属于中等抗旱性材料。

The term "Ornamental grass" is used to describe all grasslike plants of ornament al value.

本文就禾草的种质资源及其评价与繁殖利用作综述，并重点综述观赏的禾草类植物的种质资源评价及其繁殖利用。

The principles of several DNA Molecular markers and their application on assessment of germplasm genetic diversity,fingerprinting construction,classification of heterotic groups and heterosis prediction for maize were reviewed.The present problems and prospective of molecular markers application in germplasm resource we...

介绍几种DNA分子标记的原理，综述了DNA分子标记在玉米种质遗传多样性鉴定、绘制指纹图谱、杂种优势类群划分和杂种优势预测等方面的应用，并探讨了在玉米种质研究中存在的问题和应用前景。

So it is very necessary to study variances of Chinese Meretrix meretrix germplasm resources and their molecular genetic bases for their lasting utilization,sustained and healthy development of aquaculture industry. In this study, the genetic bases and their variances of representative populations of Meretrix clam were investigated through phenotypic traits and on the molecular level by quantitative genetic methods and molecular marker analysis technique.

本研究从表观性状和分子水平上探测我国文蛤种质资源的遗传基础和变异水平，旨在深入了解我国文蛤的种质状况并为其保护和可持续利用提供依据；在此基础上，通过杂交选择育种实践，分析和探讨文蛤由此获得杂种优势水平，为养殖文蛤的遗传改良和新品种培育提供理论指导。

Accessions hybrid BC1 F2 were backcrossed, with two elite parents Diantun502 and Flcxi35 widely cultivated in Yunnan as recurrent parent, while 548 accessions core collection in Yunnan rice landrace as donors. Under natural low temperature 18.1℃ at booting stage, the genetic variation to main morphological characters of core collection hybrids in Yunnan rice landrace was analyzed between indica and japonica, rice cropping regions.

在昆明孕穗期平均温度181℃的自然低温下，以云南当家品种滇屯502和合系35作轮回亲本，以548份云南稻核心种质为供体亲本配制的杂种BC1F2（458份）为材料，按籼粳、稻作区进行云南稻核心种质杂种后代形态性状遗传变异研究。

Effective regeneration programmers are essential to maintain the viability and genetic integrity of ex situ seed collections of crop germplasm.

有效的种质资源繁殖更新是保持作物异位保存种质资源活力和遗传完整性的首要工作。

Genetic variation in demes appeared 8 times higher than among demes. The paper also gave a few methods such as dendrogram, statistic, frequency of markers, polymorphic bands and special loci, genetic variations within and among demes for conservation and utility, molecular checking indexes for cultivars can provide basic information for protection of intellectual property rights and selection of wanted cultivars.

通过多态带和特殊带提出了桃核心种质，并利用聚类法、统计法、标记频率法、多态带数和特殊位点法、类群间和类群内的遗传差异法提出了种质保存策略；以及品种识别分子检索表的建立，为知识产权保护和正确选择品种提供了第一手资料。

Huangzaosi promoted the development of the high-density-tolerance maize breeding,enriched the germplasm gene pool and identified the breeding line of breeding close planting varieties in Jilin province.

黄早四种质促进了吉林省耐密型玉米育种的发展，丰富了种质基因库，在吉林省确定了选育密植品种的育种路线。

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。