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Stimplex

Type: Seaweed extract, Company: Acadian Seaplants Limited

Effect

No effect on produce quality
Increased drought stress tolerance

Stimplex treated Lemonwood, cv. Variegatum, grown in a greenhouse with 100 % irrigation had no more leaves/plant or bigger leaf areas or more plant dry weight, were not taller, hadn't a higher photosynthetic rate or more flavonoids or total phenolics as compared to the untreated control grown in the same conditions. Stimplex treated Lemonwood, cv. Variegatum, grown in a greenhouse with reduced irrigation had significant more leaves/plant, bigger leaf areas, more plant and root dry weight, were taller, had a higher photosynthetic rate and had more flavonoids and total phenolics as compared to the untreated control grown also grown in drought stress. Soil drench applications gave better results as compared to foliar applications. (Results only given in graphs)

Trial details
indoor, greenhouse, black peat:perlite (3:1 w:w) substrate in 3.3 L pots, 100% and 50 % irrigation
Canada

Crop

Lemonwood, Pittosporum eugenioides

Trial application

Method
Foliar application or soil drench
Timing
First application four weeks before the start of drought stress, followed by 11 treatments weekly (12 in total)
Rate
5 or 7 mL/L
Elansary, H.O., Skalicka-Woźniak, K., & King, I.W.
2016
Enhancing stress growth traits as well as phytochemical and antioxidant contents of Spiraea and Pittosporum under seaweed extract treatments
Plant Physiology and Biochemistry
105
310-320
Crop group