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BioAtlantis

Type: Seaweed extract, Company: BioAtlantis

Effect

Decreased drought stress tolerance
Decreased produce quality

BioAtlantis treated Surfinia, cv. Surfinia White, grown in peat-based substrate in drought stress conditions had 23 % less branches (sign), 13 % shorter branches (sign), 11 % more flowers, 32 % less fresh weight (sign), 20 % less dry weight (sign), 18 % less root development, a 1.1 % lower chlorophyll-index, a 10 % higher flavonol-index, a 0.3 % lower anthocyanin-index and a 18.8 % lower stomatal conductance compared to the untreated control grown in the same drought stress 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 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
2 L/ha
Ornamental plant research PCS
2019
Bio4safe trial report Surfinia 2019
Crop group