Table 3. Egg laying and egg hatchability of four T. ni strains on artificial diet and plant leaves.
| Strain | Artificial diet | Cabbage | Cotton | Tobacco | Tomato | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total no. of eggs laid per moth | Susc.a | 882.5 ± 151.4 | a | A | 702.4 ± 182.2 | a | B | 572.9 ± 150.6 | a | B | 696.5 ± 155.4 | a | B | 543.7 ± 156.3 | a | B |
| 1Ac-Rb | 834.5 ± 127.7 | a | A | 649.2 ± 154.3 | a | BC | 495.4 ± 124.1 | a | B | 603.7 ± 184.7 | a | B | 432.6 ± 100.6 | a | C | |
| 2Ab-Rc | 820.9 ± 138.2 | a | A | 680.3 ± 183.3 | a | AB | 510.9 ± 123.6 | a | C | 548.5 ± 98.5 | a | BC | 378.3 ± 78.7 | a | C | |
| 1Ac-2Ab-Rd | 812.9 ± 154.4 | a | A | 675.3 ± 150.7 | a | AB | 476.3 ± 105.6 | a | C | 518.7 ± 106.1 | a | BC | 406.1 ± 111.3 | a | C | |
| Egg hatching (%) | Susc.a | 85.7 ± 1.8 | a | A | 82.0 ± 4.5 | a | A | 83.4 ± 3.3 | a | A | 83.6 ± 5.2 | a | A | 80.9 ± 5.0 | a | A |
| 1Ac-Rb | 83.2 ± 1.7 | ab | A | 77.0 ± 5.3 | a | B | 77.6 ± 4.2 | b | B | 79.9 ± 5.7 | a | AB | 75.8 ± 5.2 | a | B | |
| 2Ab-Rc | 81.2 ± 3.3 | b | A | 77.8 ± 4.4 | a | AB | 72.9 ± 5.1 | b | B | 79.2 ± 4.2 | a | A | 76.6 ± 6.4 | a | AB | |
| 1Ac-2Ab-Rd | 83.9 ± 2.2 | ab | A | 75.8 ± 5.6 | b | B | 74.5 ± 4.3 | b | B | 77.2 ± 4.5 | b | B | 74.7 ± 7.5 | b | B | |
*Significant differences between different T. ni strains on the same plants are indicated by different letters in lower case in the same column. Significant differences for the same strain between different plants are indicated by different letters in upper case in the same row. Values are indicated as mean ± SD.
aCornell Bt-susceptible strain.
bGLEN-Cry1Ac-BCS strain.
cGLEN-Cry2Ab-BCS strain.
dGLEN-Cry1Ac+Cry2Ab-BCS strain.