cross breeding

基本解释

When it comes to cross breeding for better strains, Li is the comrade you should consult.
至于杂交培育良种的问题，你可以去请教李同志。
Perhaps pesticides, cross breeding and genetic engineering are responsible for our children's "toxic overload."
也许杀虫剂，杂交育种和基因工程使得我们的孩子吸收“过多的有毒物质”。
The analysis and evaluation of genetic diversity among crop inbred lines are the basis of heterosis breeding and cross breeding.
作物自交系间遗传差异的分析与评价是杂种优势育种和杂交育种成功的基础。

As for cross-breeding, Mother Nature had done it first, cross-pollinating different wild grasses until they produced a grain that could eventually expand into modern bread.
ECONOMIST: Norman Borlaug
But many ranches are now cross-breeding the zebu with Aberdeen Angus and other European stock.
ECONOMIST: Brazil

杂交育种
Cross breeding is an important method for tree improvement of Eucalyptus. The use of heterosis plays an important part in breeding.
桉树(Eucalyptus)杂交育种是桉树遗传改良的重要手段。
生物学
杂交育种
杂交繁育