To raise breeding efficiency by applying comprehensive breeding methods.

综合运用多种育种技术，提高育种效率；

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Distant hybridization is one of the most important breeding methods in modern vegetable science.

远缘杂交是现代蔬菜作物品种改良的重要手段之一。

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The breeding methods and wool - ability of five kinds of wool - produced Russian sheep were introduced.

介绍了俄罗斯五个优良毛用型绵羊品种的选育方法和产毛性能。

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Scientists are using biotechnology as well as traditional breeding methods to develop water-saving crops to feed a growing world.

VOA: special.2009.03.23

They have been using conventional breeding methods to develop and test soybeans that can grow well under dry conditions.

VOA: special.2009.03.23

They have been using traditional breeding methods to develop soybeans that can grow well under dry conditions.

VOA: special.2009.01.20

That history might be a little unsettling to some, but these are conventional breeding methods, not GE.

FORBES: "Genetically Engineered" In California: A Food Label We Don't Need

But it is odd, at first sight, that genetic modification in a laboratory should weaken a plant any more than traditional breeding methods do.

ECONOMIST: Genetically modified weaklings | The

The main advantage of using genetic markers is that it speeds up old-fashioned breeding methods, because you no longer have to wait for the tree to grow up to see if it has the desired traits.

ECONOMIST: Genetic engineering: Gone is the forest primeval | The