Effect
Increased salt stress tolerance
Trainer treated Spinach, cv. Platypus RZ, grown in salt stress conditions had 21.1% significant more plant/m², 29.5 % significant more leaves/m², no differences in number of leaves/plant, in average leaf weight and had a significant lower leaf dry matter (-5.5%), a significant higher chlorophyll SPAD index, the treated leaves had a lower L* (brightness), a higher a*(green/red), a higher b* (blue/yellow), had a significant higher total chlorophylls content (+4.2%) and nitrate content (47.4%), no difference in carotenoid content, and a significant lower total phenols content (-13.6%) and total ascorbic acid content (-23.6%) compared to the untreated control grown in the same salt stress conditions.
Trial details
indoor greenhouse, grown in pots filled with sandy soil, salt stress conditions (EC of 0, 3.0, 6.0, and 9.0 dS/m3)
Italy
Crop
Spinach, Spinacia oleracea
Trial application
Method
Foliar spray
Timing
First treatment 2 weeks after sowing, followed by a weekly application
Rate
3 mL/L
2022
Effect of biostimulant application on plant growth, chlorophylls and hydriohilic antioxidant activity of spinach (Spinacia oleracea L.) grown under saline stress
Horticulturae
8
971
Crop group