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Axillary Bud Development and Necrosis for 'Heukgoosul' Grapevine  

Kwon, Yong-Hee (Department of Integrative Plant Science, Chung-Ang University)
Kim, Eun-Joo (Department of Integrative Plant Science, Chung-Ang University)
Park, Seo-Joon (National Institute of Horticultural and Herbal Science)
Lee, Han-Chan (National Institute of Horticultural and Herbal Science)
Ma, Kyeong-Bok (National Institute of Horticultural and Herbal Science)
Park, Hee-Seung (Department of Integrative Plant Science, Chung-Ang University)
Publication Information
Journal of Bio-Environment Control / v.20, no.4, 2011 , pp. 382-386 More about this Journal
Abstract
This study aims to identify the cause for low appearance of flowers in 'Heukgoosul' grapevines, and determine basic characteristics of the axillary buds and types of necrosis in order to find out their influence on necrosis. As for $1^{st}$ to $4^{th}$ node, the closer buds were located to cane, the smaller the size of buds became. However, there was no difference in the size of an axillary bud in the upper part of the shoot above the 4th node. The bud necrosis occurrence in the $1^{st}$ node was the highest with 32% while buds in $4^{th}$ to $10^{th}$ node were normal with 84~96%. The size of buds in July was the largest with 6.40 mm, while buds showed no difference from August to October. The bud necrosis and main bud necrosis occurred most frequently in October, however accessory bud necrosis took place from July demonstrating no difference since then. The analysis on the relationship between shoot vigor and necrosis of axillary buds showed that the shoot diameter and internodes' length have no co-relationship with axillary bud necrosis, but there were negative relationship between the size of buds and necrosis occurrence, which was the most related to accessory bud necrosis. Therefore, despite the low occurrence of bud necrosis and healthy buds in 'Heukgoosul' grapevines, there was little appearance of flowers in the grapevines, which was attributable to the necrosis in the first bud. In conclusion, the research suggests spur pruning with three nodes kept intact yield.
Keywords
accessory bud; bud necrosis; bud size; inflorescence; main bud;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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