Efficacy of Manvert Foliplus (complete biostimulant) in two hazelnut cultivars in Tarragona, Spain
Manvert Foliplus is an organic compound that stimulates bud burst, flowering and growth of plants and fruits. It is composed of amino acids, reducing sugars and phytohormones from seaweed extract. BIOVERT and IRTA have jointly conducted a trial over two years (2015 and 2016), to assess the efficacy of this biostimulant in fruit set and production of two hazelnut (Corylus avellana L.) cultivars Negret and Tonda di Giffoni in both, a comparative trial in IRTA-Mas de Bover field station and in two commercial orchards. The product was applied by foliar spraying in different periods: from the fruit set time to the kernel growth stage (covering a period of 40 days). Different treatments were tested: application at fruit set time, fruit set + 10 days, fruit set + 10 days + 20 days, fruit set + 10 days + 20 days + 40 days and control. Total applied dose was 2 L ha-1 spray-1. Fallen blank fruits, production and nut quality (nut weight, kernel weight, size >12 mm, and defects) were evaluated for each treatment, in both cultivars. A positive effect of Manvert Foliplus in hazelnut production was observed in the two cultivars in 2015, for some treatments, and only in Tonda di Giffoni in 2016. In 2015, a lower number of fallen blank fruits was observed in Tonda di Giffoni trees treated with this biostimulant. No significant differences were found in nut quality among treatments for both cultivars, in any of the two years of the trial.
Rovira, M., Romero, A. and del Castillo, N. (2018). Efficacy of Manvert Foliplus (complete biostimulant) in two hazelnut cultivars in Tarragona, Spain. Acta Hortic. 1226, 261-264
Corylus avellana L., organic agriculture, fruit set, 'Negret', 'Tonda di Giffoni'