Effect
Increased drought stress tolerance
Stimplex treated Orange Trees, cv. Hamlin crafted on Carrizo citrange rootstock, grown in drought stress conditions grew significantly more, had significant more new leaf area, significant shorter roots and had the same water use efficiency compared to the untreated control trees (Soil drench application had more effect than foliar spray).
Trial details
indoor, unshaded greenhouse, pots filled with peat-based soilless potting media, 50 % reduced irrigation
USA
Crop
Orange, Citrus sinensis L.
Trial application
Method
Soil drench or Foliar spray
Timing
Every week of the 12-weeks experiment (August till October)
Rate
first 3 weeks (full irrigation) 5 mL/L + week before drought (week 4) 10 mL/L + during drought the concentration depended on the application method (5 mL/L foliar spray and 10 mL/L soil drench)
2011
Applications of a commercial extract of the brown seaweed Ascophyllum nodosum increases drought tolerance in container grown 'Hamlin' sweet orange nursery trees
HortScience
46
577-582
Crop group
