遗传变化可能会多次和敏感的激活基因改造，并可能产生逐渐丧失生产力的转基因品种的或意外的有毒植物产品。
The genetic changes activated in GM may be numerous and subtle, and may produce gradual loss in productivity of GM varieties or unexpected toxic plant products.
今年将种植809公顷的玉米和405公顷的大豆(均为转基因品种)，预计生产约9100公吨玉米和1362公吨大豆。
This year Raasch Farms will produce 809 hectares of corn (all GM) and 405 hectares of soybeans (all GM). This year we expect to produce about 9,100 mt of corn and 1,362 mt of soybeans.
新的转基因品种的最初评估是在小规模田间试验中进行的，在此试验条件下，稀有事件例如与杂草种的杂交可能不会产生明显的结果。
Evaluation of novel transgenic lines is initially in small-scale field trials, where it is likely that rare events, such as hybridization with weed species, may have insignificant consequences.
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