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http://dx.doi.org/10.12791/KSBEC.2013.22.4.366

The Effect of Renewal Topworking on Early Y Shape Tree Formation and Yields in Peach Trees  

Yoon, Ik Koo (National Institute of Horticultural & Herbal Science)
Yun, Seok Kyu (National Institute of Horticultural & Herbal Science)
Jun, Ji Hae (National Institute of Horticultural & Herbal Science)
Nam, Eun Young (National Institute of Horticultural & Herbal Science)
Kwon, Jung Hyun (National Institute of Horticultural & Herbal Science)
Bae, Hae Jin (National Institute of Horticultural & Herbal Science)
Chung, Kyeong Ho (Apple Experiment Station National Institute of Horticultural & Herbal Science)
Moon, Byung Woo (M.Horticultural Technique Research Institute)
Publication Information
Journal of Bio-Environment Control / v.22, no.4, 2013 , pp. 366-370 More about this Journal
Abstract
The effects of the early tree shapes with renewal by top-working on Y-shaped peach tree, and the influence on the maintaining fruit quantity with gradual renewal of interstock cultivar were determined. In the comparison of the places of top-working tree, top working tree on the inside of the main branch of interstock cultivar had higher graft union rate and branch growth than those of top working tree on the outside. Tree width, basal diameter of shoot, and number of bearing shoots were smaller in top working tree than in replanted tree. Although labor time was not different to control top working tree and replanted tree, labor time was much required to manage top working tree with interstock cultivar. Accumulated fruit production was 2,384 kg/10a in top working tree and 2,025 kg/10a in replanted tree for three years. However, top working tree had no loss of fruits because interstock cultivar of top-working tree had 3,727 kg/10a of fruits. No variation on fruit quality was observed between top working tree and replanting tree. In terms of economic value of top-working tree, labor to manage interstock cultivar, fertilizer price, fruit bagging, and grading and packing price increased. However, fruit production increased, and price of seedling, rental equipment, pulling-out trees, and repairing supporting system decreased. Therefore, gradual renewal of topworking tree has effects on the maintaining fruit quantity, supplementation on fruit loss, and renewal cultivar.
Keywords
fruit charateristic; economic; graft; growth; labor time;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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