Fig. 23: Cumulative total yield of tomatoes in number

Fig. 23: Cumulative total yield of tomatoes in number.

Letters indicate significant differences at the end of the experiment (HSD, p ≤ 0,05).

4.3.2 Marketable yield of tomatoes

At the end of the harvest period amounted marketable yield of tomatoes 13-15 kg/m2 (Fig. 24). No significant differences between light treatments were observed. The light treatment during young plant production did not matter and also the light treatment at continous production did not have an influence on marketable yield of tomatoes.

Plants that received LED lights in young plant production started to give red fruits about half a week earlier than plants that received HPS lights in young plant production. However, at the end of the harvest period was a small yield advantage observed at light treatments that received HPS lights in young plant production compared to light treatments that received LEDs in young plant production. In the middle of the harvest period was observed an advantage of the treatment „HPS, Hybrid“. However, this advantage decreased at the end of the harvest period.