Table V
Tomato fruit yield of four different cultivars grown in organic or conventional crop systems.
| Weight of fruits | Number of fruits | |||||
|---|---|---|---|---|---|---|
| (g/plant/week of harvesting) | (nb/plant/week of harvesting) | |||||
| Cultivars | ||||||
| 15 | 441.3 c | 4.9 c | ||||
| 40 | 286.0 a | 4.1 b | ||||
| 45 | 372.7 b | 4.9 c | ||||
| 93 | 418.7 c | 3.2 a | ||||
| P values | 0.0001 | 0.0001 | ||||
| Crop systems | ||||||
| ORG | 373.12 ab | 4.3 bc | ||||
| ORGWS | 376.08 ab | 4.0 ab | ||||
| CONV-S | 312.60 a | 3.8 a | ||||
| CONV-RWL | 441.75 c | 4.7 c | ||||
| CONV-RWH | 394.85 bc | 4.7 c | ||||
| P values | 0.0121 | 0.0087 | ||||
Crop systems were: organic system in soil with (ORG) or without straw (ORGWS), conventional system in rockwool with a high nutritive solution concentration (CONV-RWH), conventional system in rockwool with a low nutritive solution concentration (CONV-RWL), and conventional system in soil (CONV-S). The interaction between Cultivars and Crop systems effect was very weak (P value = 0.0306) and, therefore, only the main effects were considered. For each parameter (cultivar and crop system), within each column, values followed by a similar letter are not significantly different according to Tukey test (P ≤ 0.05).