Table 3. Segregation of zoxamide-resistance in the sexual progeny of different Phytophthora capsici isolates.
| Segregation (Resistant:Sensitive)a | |||||||
| Group | Parental isolate | No. of progeny | Observed | Expected | ?χ2 | P | Null hypothesis |
| S1-1 | PCAS1 (S) | 111 | 53∶58 | 7∶9 | 0.7209 | 0.3959 | Accepted |
| S1-10 | RZ13-2 (R) | 73 | 73∶0 | 1∶0 | − | − | Accepted |
| S1-12 | XH38-13 (R) | 53 | 53∶0 | 1∶0 | − | − | Accepted |
| F1-1 | PCAS1×PCAS2 (S×S) | 104 | 47∶57 | 7∶9 | 0.0879 | 0.7668 | Accepted |
| F1-4 | RZ13-2×PCAS2 (R×S) | 83 | 42∶41 | 1∶1 | 0.0120 | 0.9126 | Accepted |
| F1-6 | XH38-13×PCAS2 (R×S) | 100 | 56∶44 | 5∶3 | 1.8027 | 0.1794 | Accepted |
| F2-1 | F1-4-15×F1-4-96 (R×R) | 82 | 59∶23 | 3∶1 | 0.4065 | 0.5237 | Accepted |
| BC1-1 | F1-4-15×RZ13-2 (R×R) | 98 | 45∶53 | 1∶1 | 0.6531 | 0.4190 | Accepted |
| BC1-2 | F1-6-16×XH38-13 (R×R) | 62 | 45∶17 | 3∶1 | 0.1935 | 0.6600 | Accepted |
a
Sexual progeny were only considered resistant (R) when they were able to grow on PDA plates amended with 30 µg ml−1 zoxamide.