查询词典 germplasm

Introducing into to wheat the gna gene that encodingsnowdrop lectin(Galanthus nivalis agglutinin;GNA),a toxic protein to Homoptera,or cryIA gene that encoding Bacillus thuringiensis insecticidal protein forLepidopteraby genetic transformation will produce new germplasm that maybe produce resistant to somekinds of pests.

利用转基因技术，将对同翅目昆虫具有抗性的雪花莲凝集素基因gna和对鳞翅目昆虫具有抗性的苏云金芽孢杆菌杀虫蛋白基因cryIA导入小麦，极有可能获得对某些害虫具有一定抗性的小麦新种质。

The results showed that autote traploid rice might be effectively improved by ion beam bio-technique, from which the new germplasm with hereditable twin-embryo seedling could be selected.

结果表明，利用离子注入技术可以对同源四倍体水稻进行有效地改良，由此可以获得具有遗传变异特点的新种质，其双胚苗特性随着自交世代的推进而得到保持。

Information on the combining ability and heterotic patterns of maize germplasm is of great value to maize breeders.

研究玉米种质的遗传关系及其杂种优势模式对玉米育种者有着极为重要的指导意义。

Maize germplasm gets more and more mixed. To make full use of heterosis, it is very important for maize breeders to distinguish heterotic groups and to design heterotic patterns.

玉米种质日趋复杂，对现有种质资源进行杂种优势群的划分，构建杂种优势模式的基本框架，将对进一步提高杂种优势利用水平，对当前和今后的玉米育种工作有重要的指导意义。

Exotic germplasms have been playing an important role in corn breeding and production in our country. But to make good use of them, their genetic characteristics and germplasm relationship with Chinese inbred lines representing different heterotic groups should be studied.

引进国外种质对提高我国玉米育种和生产水平具有重要作用，但要充分发挥其作用，必须系统研究其种质特点及其与我国不同优势类群自交系的遗传关系。

But to make good use of them, their genetic characteristics and germplasm relationship with Chinese inbred lines representing different heterotic groups should be studied.

本研究采用传统的配合力和杂种优势分析与现代的SSR分子标记技术相结合的方法，探讨引进南斯拉夫玉米自交系与我国不同优势类群骨干自交系的配合力、杂种优势、遗传距离和杂合性，为引进自交系的高效合理利用提供理论依据；并通过各项遗传指标与F1产量的相关分析，探讨各项指标预测杂种优势的可行性和效果。

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.

DNA Molecular markers ； DNA分子标记是继形态标记、细胞标记和生化标记之后发展起来的一类重要的遗传标记，已在生命科学领域中广泛应用。

Clustering results showed that the clusters were not corresponding to heterotic groups and pedigrees,which suggested that the A-PAGE of seed storage proteins might not be a good method for large-scale analysis of genetic diversity and heterotic grouping in maize germplasm.

利用盐溶蛋白多态性完成的聚类分析结果和自交系系谱及杂种优势群之间没有明显的对应关系，表明储藏蛋白A-PAGE方法对于大规模玉米种质资源的遗传多样性分析和类群划分可能存在局限性。

The rate of maize yield growth has being declining due to narrow genetic background and limited new heterotic patterns since 1970s.The role of tropical and subtropical maize germplasm in maize improvement was discussed in this paper.

但70年代以来我国玉米增产率呈下降趋势，玉米生产一直处于徘徊状态，其主要原因是国内种质资源匮乏，缺乏新的杂种优势群和杂种优势模式。

With the development of society and research of its related products,leech will in great need.The contradiction between supply and demand appears because of the deteriorating of the wild resources,leading to a worldwide shortage. Leech was included in the list of 1983 IUCN Invertebrate Red Data Book.It is urgent to protect existing leech wildlife resources,so,location,collation and evaluation germplasm resources of Hirudo is becoming an important task.

目前心血管疾病给人类健康造成的危害已经越来越大，并已成为人类死亡的第一杀手，而以水蛭为主要原料的中成药产品有望成为这一顽症的克星，并且其抗炎作用可在饲料添加剂中进行大力开发应用。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失