查询词典 crossbreeding

For species, adaptations to novel environments and the need to avoid crossbreeding with those on the other side of the split are both plausible hypotheses.

对于物种，适应新环境的需要和避免与分化的另一方杂交都是貌似有理的假设。

The inheritance of some fruit traits in canning yellow peaches was studied in the crossbreeding process.

在用杂交手段选育罐藏黄桃品种的实践中，对果实经济性状的遗传倾向作了分析。

Gingers seldom flowers and have seeds, so it is difficult to cultivate new variety through crossbreeding.

蔗糖比葡萄糖更利于根状茎的诱导，活性炭对根状茎诱导没有明显作用。

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

Who had ever shown that the heritability principle is inapplicable in crossbreeding, e.g., in a crossing of two pure strains?

谁曾经证明过遗传力的理论不能应用於杂交育种中，例如在两个纯种的杂交子一代中呢？

The article is opposite our country 2004-2006 year crop of sturgeon of each province city, breed phyletic, seedling to plant on the base that the newest change of the market and field of commodity fish market has descriptive, breed form of water area lack, consumption effectively what in putting forward current sturgeon aquaculture, exist earnestly of guild of disease of control of lack of onefold, crossbreeding, fish and piscine medicine, sturgeon needs to build wait for a problem, offerred the way to deal with a situation in the light of the problem.

本文在对我国2004-2006年各省市鲟鱼产量、养殖种类、苗种市场和商品鱼市场的最新变化进行描述的基础上，提出了当前鲟鱼养殖业中存在的有效养殖水域缺乏、消费形式单一、杂交育种缺乏控制、鱼病和鱼药、鲟鱼行业协会亟需建立等新问题，并针对新问题提出了策略。

Two years before the Darwin-Wallace paper, an obscure Austrian monk by the name of Gregor Mendel had started work on crossbreeding varieties of peas.

在达尔文-华莱士论文发表前两年，一位名叫孟德尔的默默无闻的奥地利修道士开始进行豌豆杂交品种研究。

Selection for increased number of piglets born has been employed in pigs with only limited success because of the low heritability, the late expression in life and the sex-limited nature of reproductive traits. And so, the genetic progress of reproductive traits only depended on crossbreeding in the past years.

传统的数量遗传学在指导家畜育种中起到了重要的作用，但是繁殖性状遗传力低、性状表现晚、而且是限性遗传，通过常规选择难以有所进展。

The Triangle town of the agricultural sector and seed breeding of aquatic products in the relevant market with the help of fisheries experts, for the first time in Guangdong Province will be carried out and the area north of Hunan and Hubei and the snakehead Channa spot of Hong Kong to carry out research crossbreeding.

2000年起，三角镇农业部门和裕荣水产种苗繁育场一起在相关水产专家的协助下，首次在广东省开展了将两湖及以北地区的乌鳢与香港地区的斑鳢进行杂交育种的研究工作。

In this present study, sterile hybrid progenies derived from optimal combinations guaranteed the protection of intellectual property. Meanwhile, inter and intra-specific hybridization using male sterility and molecular method for hybrid seed identification paved a new way for crossbreeding Tagetes erecta through male sterility.

本研究所选育出的优良组合子代全部是不育类型的杂种，有力地保护了自主知识产权，利用雄性不育进行种内和种间杂交以及分子鉴定杂交种的方法，开创了万寿菊利用雄性不育进行杂交育种的新途径。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。