Life table parameters of Bombyx mori larvae when fed pollen from Cry1C- or Cry2A-expressing Bt rice or pollen from the corresponding non-transformed varieties.

Values are means ± SE, n = 3.1Neonates of B. mori were fed mulberry leaves covered with rice pollen for the first 3 d and were then fed mulberry leaves without rice pollen until pupation.2Neonates of B. mori were fed mulberry leaves covered with rice pollen for their entire larval stage.“-” denotes lost data.For each parameter, means in a column followed by different letters are significantly different (one-way ANOVAs with Tukey tests for larval weight, pupation and eclosion rate; Kruskal-Wallis Tests followed by Mann-Whitney U-Tests for larval development time).An asterisk denotes a significant difference between the Bt pollen treatment and the corresponding non-Bt pollen treatment at the same pollen dose (Dunnett test).