改良品种

In this paper, major agronomic traits and grain quality traits affecting rice yield and grain quality were investigated in seven aromatic rice maintainer lines bred in Sichuan and one variety introduced from America. It was aimed at estimating the numbers of gene controlling aroma, the allelism of aroma genes, location of aroma gene on the chromosome, and molecular tagging of aroma gene.

本研究利用四川新育成的七个香稻保持系(D香1B、D香2B、内香2B、内香4B、绵香2B、绵香3B、宜香1B)、一个香稻引进改良品种(泸香90)和一个非香型保持系为材料，研究了香稻保持系主要农艺性状和品质性状对品质、产量的影响，并且通过杂交群体构建对香稻香味性状进行了遗传分析。

The knife that Jim Bowie used in 1892 was a new version that he had commissioned himself, a modification of his brother's original idea.

1829年，吉姆·鲍伊使用的刀是他自己做出来的新款式，是对其兄弟最初想法的改良品种。

A domestic animal produced by crossbreeding one of purebred stock with one of ordinary stock.

改良品种：一种家畜，由一个纯种家畜和一个普通家畜杂交得到

To improve the quality of by crossbreeding with purebred stock.

改良品种一种家畜，由一个纯种家畜和一个普通家畜杂交得到

Most branches have been Qiadiao, in order to prevent soaring is not fruiting, jujube were people down the middle with a saw with a few trepan become a lifelong affliction, which is geld trees increase, as well as the species undergoing major surgery, doing improved varieties grafting surgery.

枝头大多被掐掉，为的是防疯长不坐果，枣树则被人们用锯拦腰破皮环锯几道，这是骟树为增产，还有的树种在经历大手术，做着改良品种的嫁接术。

Still belongs to the initial discovery in our country. This discovery not only h as important academic value to find out the plant resources of Psidium guajava L inn.,but also to thoroughly studies its va...

它的发现不仅对摸清攀西地区以及我国的番石榴种质资源，深入研究其变异特点具有重要的学术研究价值，而且在改良品种，提高品质上也具有重大的经济意义。

While it was still oil-wealthy, Mexico intensified programs to provide improved varieties of basic food crops—maize and beans—to the campesinos. Most frontier agricultural research for the Third World, however, is conducted by institutes coordinated and financed through a World Bank-led Consultative Group on International Agricultural Research.

虽然是石油富国，墨西哥仍然扩大项目，以提供改良品种的基本粮食作物-玉米和豆类-第三世界最前沿的的农业研究却是由研究组织合作完成的，并且是由世界银行为牵头的国际农业研究协商组织资助

Professor Zhang points out, introduce milk cow to should set out from improved breed, introduce high grade kind the ox enters pedestrian labour insemination to cow, can rise by tens of thousands the yield with head arrogant offspring suckles a quantity, its are long-term benefit far excel introduces cow.

张教授指出，引进奶牛应从改良品种出发，引进优质种公牛对母牛进行人工授精，可提高成千上万头后代牛的产奶量，其长远效益远远优于引进母牛。

Proven package of scientific technology for maximum crop yields requires that improved seed, crop management practices and the use of inputs should be fine-tuned to farm-specific-situations.

已经证明的作物高产配套科学技术要求改良品种、作物管理措施和使用投入等应针对特定农场条件。

Improved wheats will be introduced on a wide scale this year.

今年将大范围的推广小麦的改良品种。

But in the course of internationalization, they meet with misunderstanding and puzzlement.

许多企业已经意识到了这一点，但在国际化的进程中，仍存在一些误区与困惑。

Inorder toaccomplish this goal as quickly as possible, we'll beteamingup with anexperienced group of modelers, skinners, and animatorswhosenames willbe announced in the coming weeks.

为了尽快实现这个目标，我们在未来数周内将公布与一些有经验的模型、皮肤、动画制作小组合作。