Table 1.
Yield stability parameters and ranks for tomato and maize yields in the maize-tomato rotation in three systems from 1994 to 2017.
| Crop | System | Yield stability parameters | Rank | |||
|---|---|---|---|---|---|---|
| Yield range | CV (%) | Yield variance | FW slope | |||
| Tomato | ORG | 50.044 (1) | 0.142 a (1) | 10.151 a (1) | 0.216 (1) | 1 |
| CONV | 99.071 (3) | 0.202 ab (2) | 14.827 ab (2) | 1.171 (2) | 2.3 | |
| CONV + WCC | 95.680 (2) | 0.284 b (3) | 21.190 b (3) | 1.616 (3) | 2.8 | |
| Maize | CONV | 4.858 (1) | 0.123 a (1) | 1.468 b (2) | 1.131 (2) | 1.5 |
| CONV + WCC | 9.204 (3) | 0.149 a (2) | 1.133 a (1) | 0.706 (1) | 1.8 | |
| ORG | 8.919 (2) | 0.206 b (3) | 1.561 b (3) | 1.163 (3) | 2.8 | |
CONV: conventional maize-tomato system; CONV + WCC: maize-tomato system with winter cover crops; ORG: organic maize-tomato system. Numbers in parentheses represent ranks of individual yield stability metrics for three systems. Letters represent significant differences among systems at the 0.05 significance level. CV represents coefficient of variation, and FW slope represents the Finlay and Wilkinson regression slope.