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Effects of Tree-spray of Calcium Formate Compound Extracted from Oyster Shell and Active Agent on the Calcium Concentration, Fruit Skin Shape, and Quality of 'Fuji' Apple Fruit  

Moon, Byung-Woo (M Horticultural Technique Research Institute, #207 Business Incubator Center, Korea National Agricultural College, RAD)
Kang, In-Kyu (Dept. of Environmental Horticulture, Sangju National University)
Publication Information
Journal of Bio-Environment Control / v.16, no.1, 2007 , pp. 21-26 More about this Journal
Abstract
This study was carried out to investigate the effects of tree-spray of calcium formate compound extracted from oyster shell with several active agents on the calcium concentration, fruit skin shape and quality of 'Fuji' apple. The tree-spray of calcium formate compound extracted from oyster shell (Os-CaF, $52.4\;mg{\cdot}kg^{-1}$) appeared to have more effectiveness on the calcium translocation into leaves, fruit skin and flesh than control. Addition of adjuvants to Os-CaF increased calcium concentration of 'Fuji' apple when sprayed three times before harvest. Among the active agents examined, the treatment ascorbic acid and poly-vinyl alcohol (PVA) in leaves, Ag-colloidal and PVA in fruit skin, ascorbic acid, Ag-colloidal, and PVA in fruit flesh exhibited highest effectiveness. Fruit qualities (fruit weight, firmness, soluble solids, acidity and Hunter value) were not affect by Os-CaF on different concentrations and solutions of active agents.
Keywords
acidity; active agent; fruit firmness; Hunter value; soluble solids;
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Times Cited By KSCI : 1  (Citation Analysis)
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