Table 2.
Number of observations for the analyzed traits in stacked maize hybrids.
| Single event | Double stack | Triple stack | Quadruple stack | |
|---|---|---|---|---|
| Grain Yield | ||||
| Lepidopteran resistance | 125 | |||
| Phytase enzyme (phyA2) | 1 | |||
| Lepidopteran resistance and glufosinate tolerance | 84 | |||
| Lepidopteran resistance | 8 | |||
| Lepidopteran and coleopteran resistance, and glyphosate tolerance | 26 | |||
| Lepidopteran resistance and glufosinate tolerance | 8 | |||
| Lepidopteran and insect resistance, and glufosinate tolerance | 2 | |||
| Coleopteran and lepidopteran resistance, and glyphosate tolerance | 18 | |||
| Coleopteran and lepidopteran resistance, and glufosinate tolerance | 4 | |||
| Total | 126 | 92 | 36 | 22 |
| Damaged ears | ||||
| Lepidopteran resistance | 37 | 8 | ||
| Lepidopteran resistance and glufosinate tolerance | 34 | |||
| Lepidopteran and coleopteran resistance, and glyphosate tolerance | 28 | |||
| Lepidopteran and coleopteran resistance, and glufosinate tolerance | 8 | |||
| Coleopteran and lepidopteran resistance, and glyphosate tolerance | 20 | |||
| Coleopteran and lepidopteran resistance, and glufosinate tolerance | 4 | |||
| Total | 37 | 42 | 36 | 24 |
| TO | ||||
| Coleopteran resistance | 44 | |||
| Insect resistance | 20 | |||
| Insect and coleopteran resistance | 20 | |||
| Insect and coleopteran resistance, and herbicide tolerance | 15 | |||
| Total | 64 | 35 |