Effect
No effect on produce quality
ChitoPlant Solution treated Apple trees, cv. Red Jonathan, grown in an organic orchard, had no difference in leaf area (+3.4%), no difference in yield (-5.6%), no difference in number of fruits per tree (-8.4%), no difference in fruit weight (+1.6%), no difference in fruit diameter (+0.7%), fruits had no difference titratable acidity (+0.3%), no difference in color index (+69.9%), a significant higher total anthocyanin content (+35.3%) and no difference in ascorbic acid content in the pulp (-18.5%) compared to the untreated control.
Trial details
outdoor, unprotected, soil-grown, organic orchard, standard horticultural cares
Italy
Crop
Apple, Malus x domestica
Trial application
Method
Foliar spray
Timing
First application 40 days after full bloom (end May), followed by a weekly treatment until the end of August
Rate
15 kg/ha; Spraying volume of 1500 L/ha
2018
Use of biostimulants for Organic Apple production: effects on tree growth, yield, and fruit quality at harvest and during storage
Frontiers in Plant Science
9
1-17
Crop group
