Articles
Effect of seaweed extracts (Ascophyllum nodosum) on yield and nut quality in hazelnut
Article number
1379_35
Pages
253 – 258
Language
English
Abstract
Adequate nutrition is essential for the fruiting process of hazelnut trees.
In this context, biostimulant compounds derived from seaweed can promote physiological and nutritional changes, particularly at critical phenological stages, benefiting the yield and quality of the nuts.
The aim of this study was to increase the yields and quality of hazelnuts.
The trial was established in an orchard of 5-year-old Tonda di Giffoni trees in a multi-axis training system.
A randomized complete block design was employed with four replications and two treatments: management by the grower (control) (T0) and two foliar applications of seaweed extract at fruit set every 15 days at end of November and mid-January plus one application at fruit development at the end of January (T1). The application of seaweed extracts increased yields tree‑1, kernel yield tree‑1, fruit weight, and kernel weight.
No significant differences were found in kernel percentage among treatments in this one-year trial.
The foliar spray showed a lower percentage of blank nuts and the highest levels of starch in buds.
Applying 3 L ha‑1 of algae extract during fruit set (two applications) and during fruit development (one application) in summer is a way to obtain higher production and better nut quality.
In this context, biostimulant compounds derived from seaweed can promote physiological and nutritional changes, particularly at critical phenological stages, benefiting the yield and quality of the nuts.
The aim of this study was to increase the yields and quality of hazelnuts.
The trial was established in an orchard of 5-year-old Tonda di Giffoni trees in a multi-axis training system.
A randomized complete block design was employed with four replications and two treatments: management by the grower (control) (T0) and two foliar applications of seaweed extract at fruit set every 15 days at end of November and mid-January plus one application at fruit development at the end of January (T1). The application of seaweed extracts increased yields tree‑1, kernel yield tree‑1, fruit weight, and kernel weight.
No significant differences were found in kernel percentage among treatments in this one-year trial.
The foliar spray showed a lower percentage of blank nuts and the highest levels of starch in buds.
Applying 3 L ha‑1 of algae extract during fruit set (two applications) and during fruit development (one application) in summer is a way to obtain higher production and better nut quality.
Publication
Authors
M. Ellena, A. González, I. Romero
Keywords
Corylus avellana, biostimulant, fruit set
Groups involved
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