This paper analyses the diverse significance, hereditary strength and dependence of several main characters among the varieties of different Bt gene anti-insect cottons.

对不同抗虫棉品种间几个主要性状的差异显著性、遗传力及相关性进行了分析。

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By splicing the Bt gene that manufactures its toxic protein into the plant (say, corn or potatoes), the entire plant is rendered toxic to the pest, all without the use of pesticides.

通过接合Bt产毒素的基因入植株上，那么整棵植物都可以抵御昆虫而不需农药了。

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Bt is a bacterium that was discovered in the early twentieth century. Farmers started using it as a natural way to kill insects. Then scientists learned how to put a Bt gene into cotton plants.

BT是在二十世纪早期被发现的一种细菌。农户们把它当作一个天然杀死昆虫的方法开始泛用。之后科学家获悉到把BT基因植入棉花中的方法。

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Then scientists learned how to put a Bt gene into cotton plants.

VOA: special.2010.05.25

For example, Zeneca has managed to switch the bt gene, which gives maize plants resistance to nasty insects, on and off using another chemical trigger.

ECONOMIST: Terminator genes

The report examines the take-up of maize that has had the gene for a natural insecticide produced by a bacterium called Bacillus thuringiensis, or Bt, engineered into it.

ECONOMIST: Genetic modification works