Effect
No effect on drought stress tolerance
No effect on nitrogen N use efficiency
No effect on produce quality
SeaMelPure treated Surfinia, cv. Surfinia White, grown in a peat-based substrate in reduced water and nitrogen conditions had on average 3 % less branches, 3.8 % shorter branches, 21 % more flowers (only determined at -20 % reductions), 3.5 % less fresh weight, 1.8 % less dry weight, 4.2 % less root development, a 5.2 % higher chlorophyll-index, 3.9 % higher flavonol-index, a 31 % lower anthocyanin-index and a 33.7 % lower stomatal conductance compared to the untreated control grown in the same conditions.
Trial details
Indoor, greenhouse, peat-based substrate, drought conditions (20 % or 40 % less irrigation) and reduced nitrogen (-20 % or -40%)
Belgium
Crop
Surfinia, Petunia x hydrida
Trial application
Method
Foliar spray
Timing
1 application 2 weeks after planting
Rate
20 % reductions: 2 L/ha; 40 % reductions: 0.8 L/ha
2019-2020
Bio4safe trial reports Surfinia 2019-2020
Crop group
