It indicated that S. exigua feeding on the two transgenic cottons have been influenced, but the influence becomes shorten with prolonging feed time.
说明取食两个转基因棉花品种后，对甜菜夜蛾中肠消化酶虽有一定影响，但随着取食时间的延长，其影响呈逐步缩小趋势。
Compared with the larvae feeding on non-transgenic cottons, the respiratory rate and oxygen uptake of those feeding on transgenic cottons fluctuated more frequently.
取食转基因棉花的幼虫呼吸速率和耗氧量的波动性比较大，取食常规棉的幼虫呼吸速率和耗氧量的变化趋势比较稳定。
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