Effect
No effect on produce quality
ProAct treated Mandarin, var. Queen, grown in orchards had no difference in fruit diameter (+3%) (not sign) and had no difference in total Ca content (+70.9%) and cell wall Ca content (+29.3%) (difference were not statistically tested) compared to the untreated control grown in the same conditions.
Trial details
outdoor, unprotected, soil grown (clay loam/sandy loam), normal agricultural practices
Spain
Crop
Mandarin, Citrus unshiu grafted on Citrange Carrizo
Trial application
Method
Foliar spray
Timing
First application at flowering (BBCH GS65) or at start of fruit development (BBCH GS75), followed by 2 applications 12/2 weeks later and 20/13 weeks after the first treatment
Rate
150 g/ha in water volume of 1500 L/ha
2018
Mobilising Ca2+ to enhance fruit quality - Preharvest application of Harpin αβ (ProAct®) in citrus orchards in Spain
Trial report Plant Health Care
Crop group
