Effect
No effect on drought stress tolerance
No effect on nitrogen N use efficiency
No effect on produce quality
BioAtlantis treated Surfinia, cv. Surfinia White, grown in a peat-based substrate in reduced water and nitrogen conditions had on average 5.5 % less branches, 3.2 % shorter branches, 6 % more flowers (only determined at -20 % reductions), 2 % less fresh weight, 1 % more dry weight, 6.3 % less root development, a 2.2 % higher chlorophyll-index, a 1% lower flavonol-index, 29.5 % lower anthocyanin-index and a 2 % higher stomatal conductance (only determined at -40 % reductions) compared to the untreated control grown in the same reduced 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
Surfinia, Petunia x hydrida
Trial application
Method
Foliar spray
Timing
First two applications at the early stage of vegetation at 10 days interval, followed by 2 applications just before the emergence of flower buds at an interval of 10 days
Rate
20 % reductions: 2 L/ha; 40 % reductions: 3 L/ha
2019-2020
Bio4safe trial reports Surfinia 2019-2020
Crop group
