PT  - JOURNAL ARTICLE
AU  - Renato Vasconcelos Botelho
AU  - Alexandre Pozzobom Pavanello
AU  - Erasmo José Paioli Pires
AU  - Maurilo Monteiro Terra
AU  - Marcelo Marques Lopes Müller
TI  - Effects of Chilling and Garlic Extract on Bud Dormancy Release in Cabernet Sauvignon Grapevine Cuttings
AID  - 10.5344/ajev.2007.58.3.402
DP  - 2007 Sep 01
TA  - American Journal of Enology and Viticulture
PG  - 402--404
VI  - 58
IP  - 3
4099  - http://www.ajevonline.org/content/58/3/402.short
4100  - http://www.ajevonline.org/content/58/3/402.full
SO  - Am J Enol Vitic.2007 Sep 01; 58
AB  - Chemical treatments to break bud dormancy are necessary in vineyards that experience mild winters. Cuttings with a single bud were sprayed with 1.5 or 3.0% garlic extract or 1.5% hydrogen cyanamide. The controls were treated with distilled water. Three lots of canes were submitted to 0, 168, 336, or 508 chilling hr (≤6.0°C), respectively, before spraying. All treatments improved and advanced bud sprouting over the control. The most effective treatment for bud dormancy release was 1.5% H2CN2, with up to 80% bud sprouting after 35 days, even for unchilled cuttings. Garlic extract also promoted bud sprouting, attaining greater than 70% budbreak after 35 days for cuttings chilled for 168, 336, and 504 hr. The chilling requirement for Cabernet Sauvignon appears to be close to 336 hr.