Effect
No effect on drought stress tolerance
No effect on produce quality
Kelpak treated Surfinia, Surfinia White, grown in a peat-based substrate in drought stress conditions had 13 % less branches (sign), 4 % shorter branches, 37 % more flowers (sign), 13 % less fresh weight, 10 % less dry weight, the same root development, a 6.7 % higher chlorophyll-index, a 8.5 % higher flavonolindex, 6.7 % lower anthocyanin-index and a 12.7 % lower stomatal conductance compared to the untreated control grown in the same conditions.
Trial details
Indoor, greenhouse, peat based substrate, drought conditions (20 % less irrigation)
Belgium
Crop
Surfinia, Petunia x hydrida
Trial application
Method
Foliar spray
Timing
First application: 7-10 days after planting; repeated at 14-21 day interval up to 4 applications
Rate
2.5 L/ha
2019
Bio4safe trial report Surfinia 2019
Crop group
