Fig. 11: Number of flowers / fruits per cluster

Fig. 11: Number of flowers / fruits per cluster.

4.2.6 Open flowers / fruits per plant

The number of open flowers / fruits of the Sonata plant reached about 55, while the Magnum plant reached about 45 before harvest started (Fig. 12). Thereafter, this number decreased naturally due to harvested fruits. The open flowers appeared earlier in the HPS chamber than in the LED chamber, where the development was 1,5-2 weeks behind plants from the HPS chamber. However, the number of the flowers / fruits was not different between chambers, except the before mentioned delay in the LED chamber (Fig. 12).

However, the total number of flowers of Magnum consisted of a high amount of unpollinated flowers and later rejected flowers, 15 % under LEDs and 27 % under HPS lights (Fig. 13). This was not observed for Sonata, where the percentage of unpollinated flowers was 1 %.