Fig. 17: Length of clusters

Fig. 17: Length of clusters.

Letters indicate significant differences (HSD, p ≤ 0,05).

4.2.10 Fruits per cluster

Clusters were not pruned. Consequently the number of fruits per cluster fluctuated (Fig. 18). The number of fruits per cluster decreased during the harvest period from around 12 at the beginning of the harvest period to about 9 at the end of the harvest period. The average number of fruits per cluster amounted around 11 and was independent of the light treatment.

The number of not pollinated fruits per cluster was fluctuating between 0-2, however, with a peak of 3 on the third cluster. The average number of not pollinated fruits amounted around 1 and was independent of the light treatment (Fig. 19).

4.2.11 Number of open flowers

On the uppermost cluster was the number of open flowers counted. The number of open clusters fluctuated during the growth period between 2-5 per cluster. On average were significant more open flowers under “HPS” than under “Hybrid high” observed, whereas the number was independent between “HPS” and “Hybrid” as well as between “Hybrid” and “Hybrid high” (Fig. 20).