Use of Naphthaleneacetic Acid and Vegetable Oil to Delay Bud Break in 'Edelweiss' Single-Bud Grapevine Cuttings Placed in a Forcing Solution

Abstract

Forcing solution experiments were conducted on 'Edelweiss' dormant canes. In 2009, canes were treated with naphthaleneacetic acid (NAA) at 500, 750, and 1000 mg/l, Amigo Oil 10% v/v, and the non-treated control. In 2010, the treatments were NAA (500, 1000, and 1500 mg/l), Amigo Oil, and the control. In both years, results showed a month, bud position, and treatment interaction. In 2009, NAA at 1000 ppm in April significantly delayed bud break 7 days. In 2010, bud break was significantly delayed 4 and 5 days using NAA at 1000 and 1500 ppm, respectively, in March. Shoot length was not affected. © 2013 Copyright Taylor and Francis Group, LLC.