培育杂种

The second part is about animal breeding, including theory and method on animal breeding, such as selection and assess of breeding, breed method and essentiality of animal breed and animal strain, application of crossbreed and heterosis etc.

二、动物育种：研究动物育种理论和方法，了解种用动物的选择与评定，畜禽品种和品系的培育方法及重要性，杂交育种和杂种优势的应用等。

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。

In this paper, Platycodon grandiflorum was studied to explore the method and technology of using heterosis in sexual reproduction medicinal plant, which is to la.

本论文以我国重要中药材桔梗为对象，探索有性繁殖药用植物杂种优势利用需要解决的关键基础问题，为培育药材专用或药食兼用的优良桔梗杂交品种奠定基础。

In laboratory,"Pearl oyster breeding scheme, POBs" assumes populations of Indian and Sanya as the basic groups to nurture specialized lines, and then constructs cross lines by making use of heterosis and eventually bring out new varieties of P.martensii.

在我们实验室的&珍珠贝育种规划(Pearl oyster breeding scheme， POBs)&，就是以印度种群和三亚种群作为基础群，分别培育专门化品系，利用杂种优势，构建杂交配套系，最终育成马氏珠母贝新品种。

But theimprovement was still needed because of its late maturity and low grain-weight. The NChybrid is crossing with other vulgare so as to breed new NC hybrid suitable forproduction.

但在千粒重和早熟性上还有欠缺，目前正用其它普通小麦品种进行转育，以期培育出生产上能用的核质杂种小麦。

By contrast, hybrids derived from different varieties of the same species are often more vigorous than their parents, and are selected and propagated by vegetative means by agriculturists and horticulturists.

比较而言，由同一个种中的不同品种所产生的杂种，通过农业学家和园艺工作者的挑选和培育，其生活能力高于它的亲本。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。