EFFECTS OF ALTERNATIVES TO HYDROGEN CYANAMIDE ON COMMERCIAL 'HORT16A' KIWIFRUIT PRODUCTION

G. Hernández, R. Craig
The restriction of Hydrogen Cyanamide (HC) for dormancy interruption of Kiwifruit in the European Union leads to a concern among many New Zealand growers, who wonder about how long the product will be available in their market. A completely randomized block experiment in Auckland region compares the performance of two available alternative dormancy breaking treatments of Zespri® gold kiwifruit (Actinida chinensis Planch. ‘Hort16A’), Erger® (ER) and Armobreak® (AB) with HC – Hi Cane® – and with the untreated control, during two years of diverse winter chill, from 510 h below 7°C of the 2010 winter to only 301 of the 2011 winter. ‘Hort16A’ kiwifruit shows low sensitivity to different levels of winter chill exposure. Either after an average or a mild chilling, the alternatives to HC improved the %BB and KFl/WB of the control and HC, especially if applied at a late date, nearer to the Date of Natural Budbreak (DNB).
Hernández, G. and Craig, R. (2015). EFFECTS OF ALTERNATIVES TO HYDROGEN CYANAMIDE ON COMMERCIAL 'HORT16A' KIWIFRUIT PRODUCTION. Acta Hortic. 1096, 109-115
DOI: 10.17660/ActaHortic.2015.1096.9
https://doi.org/10.17660/ActaHortic.2015.1096.9
kiwifruit, Actinida chinensis, budbreak, flowering, hydrogen cyanamide, HiCane®, Dormex®, ArmobreakTM, Erger®
English

Acta Horticulturae