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Fruit Quality of 'Tsugaru' Apples Influenced by Meteorological Elements  

Hyeong-Ho Seo (Fruit Tree Cultivation Division, National Horticulture Research Institute, RDA)
Hee-Seung Park (Division of Biological Science and Resources, Chung-ang University)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.5, no.4, 2003 , pp. 218-225 More about this Journal
Abstract
An analytical study was conducted in 2002 to observe the relationship between meteorological elements and the fruit quality of 'Tsugaru' apples at 8 orchards. The higher average air temperature in August made a higher content of soluble solids, but showed a lower anthocyanin content. As the average air temperature from April through August increased, flesh firmness decreased; and as the maximum air temperature from April through August increased, Hunter a value also decreased. Additionally, it was observed that the cytohistological characteristics of 'Tsugaru' apples were correlated with the average air temperature during the growing season. As average air temperature during the growing season increased, the epidermal layer of the fruit skin became thinner, starch density in the flesh decreased, intercellular space was larger, and tissue structure became looser.
Keywords
apple trees; meteorological element; fruit qualities; cytohistological characteristics;
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