Effect
No effect on drought stress tolerance
No effect on nitrogen N use efficiency
No effect on produce quality
SeaMelPure treated Hydrangea, cv. Phantom, grown in a peat-based substrate in reduced water and nitrogen conditions had 6.2 % shorter branches, 11.7 % less branches, 9.4 % less fresh weight, 11 % less dry weight, 4.8 % less root development, a 5 % higher chlorophyll-index, a 7.2 % lower flavonol-index, a 7.2 % lower anthocyanin-index and a 20.2 % lower stomatal conductance (only determined at -40 % reductions) compared to the untreated control grown in the same conditions. No significant effects.
Trial details
Indoor, greenhouse, peat-based substrate, drought conditions (20 % or 40 % less irrigation) and reduced nitrogen (-20 % or -40%)
Belgium
Crop
Hydrangea, Hydrangea paniculata
Trial application
Method
Foliar spray
Timing
1 application 2 weeks after planting
Rate
2 L/ha
2019-2020
Bio4safe trial report Hydrangea 2019-2020
Crop group
