Table 2.
The effect of maize genotype, cropping and tillage systems on maize grain yields over six cropping seasons (2013–2016) in on-station trials at Kiboko, Kenya.
| Cropping season | Maize genotype | Conventional tillage (t ha−1) |
Conservation tillage (t ha−1) |
||
|---|---|---|---|---|---|
| Sole crop | Intercrop | Sole crop | Intercrop | ||
| 2013B | CKH08051 | 5.5 | 5.7 | 7.7 | 6.2 |
| CKH10077 | 7.1 | 4.5 | 5.4 | 6.5 | |
| CKH10080 | 7.3 | 4.7 | 7.3 | 7.1 | |
| CKH10085 | 6.4 | 4.5 | 8.7 | 6.3 | |
| CKH10717 | 5.8 | 5.3 | 7.8 | 7.6 | |
| H513 | 8.6 | 6.1 | 8.0 | 6.5 | |
| 2014A | CKH08051 | 8.5 | 8.0 | 7.7 | 7.7 |
| CKH10077 | 7.6 | 6.8 | 7.1 | 6.6 | |
| CKH10080 | 8.1 | 6.8 | 7.7 | 7.8 | |
| CKH10085 | 8.4 | 7.9 | 8.1 | 8.1 | |
| CKH10717 | 8.0 | 8.0 | 8.3 | 8.5 | |
| H513 | 7.6 | 6.9 | 8.0 | 7.8 | |
| 2014B | CKH08051 | 9.0 | 9.0 | 8.6 | 7.4 |
| CKH10077 | 8.1 | 8.7 | 7.2 | 7.1 | |
| CKH10080 | 9.2 | 8.5 | 8.1 | 8.4 | |
| CKH10085 | 10.0 | 9.9 | 8.6 | 8.7 | |
| CKH10717 | 9.3 | 8.9 | 9.4 | 7.9 | |
| H513 | 9.0 | 8.9 | 7.9 | 6.9 | |
| 2015A | CKH08051 | 5.5 | 6.5 | 4.9 | 4.8 |
| CKH10077 | 6.2 | 5.6 | 4.8 | 4.6 | |
| CKH10080 | 6.3 | 6.4 | 4.4 | 4.8 | |
| CKH10085 | 7.0 | 7.3 | 4.7 | 3.1 | |
| CKH10717 | 6.4 | 6.8 | 6.0 | 3.5 | |
| H513 | 6.2 | 5.9 | 4.6 | 5.7 | |
| 2015B | CKH08051 | 5.3 | 5.9 | 5.1 | 3.8 |
| CKH10077 | 4.4 | 4.8 | 5.0 | 3.7 | |
| CKH10080 | 5.6 | 4.5 | 5.2 | 4.2 | |
| CKH10085 | 6.7 | 5.7 | 6.3 | 5.1 | |
| CKH10717 | 5.4 | 5.3 | 5.8 | 5.5 | |
| H513 | 6.3 | 5.1 | 5.9 | 5.3 | |
| 2016A | CKH08051 | 8.6 | 6.3 | 7.0 | 5.9 |
| CKH10077 | 8.2 | 6.5 | 7.0 | 6.1 | |
| CKH10080 | 8.6 | 7.3 | 7.1 | 5.5 | |
| CKH10085 | 9.2 | 6.9 | 8.1 | 6.1 | |
| CKH10717 | 8.7 | 7.3 | 7.7 | 6.7 | |
| H513 | 8.5 | 6.4 | 7.0 | 5.4 | |
| Standard error | 0.16 | 0.16 | 0.15 | 0.17 | |