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Selection of Main Air Temperature Factors on Annual Variation of Growth and Fruit Characteristics of Persimmon  

Jeon, Kyung-Soo (Department of Environment Landscape Architecture, Wonkwang University)
Kim, Ho-Cheol (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
Han, Jeom-Hwa (National Institute of Horticultural & Herbal Science)
Kim, Tae-Choon (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
Publication Information
Journal of Bio-Environment Control / v.19, no.3, 2010 , pp. 165-170 More about this Journal
Abstract
This experiment was conducted to select the affected main factors on growth and fruit characteristics of 'Fuyu' persimmon (Diospyros kaki Thunb.) in 25 factors of air temperature factors in Naju. Mean air temperature, cumulative temperature and days for March and April of 25 factors were the highest annual variation. Number of the first and second principal components extracted from 25 air temperature factors were 14 and 3 factors related with mean temperature for annul and April, and cumulative contribution of these was 52.2%. Also the affected years by the first principal components were 1990, 1980 and 1986. Annual standard deviation on leafing, flowering and maturing date were 4.0~6.7 days range, and flowering date and days from leafing to flowering had the highest coefficient of variation. Annual variation of days from flowering to maturing date was affected by greatly mean air temperature and days of cumulative temperature in October, days from March 1 to leafing date was affected by cumulative temperature for growing period, days from leafing to flowering date was affected by mean air temperature in April. Annual variation of fruit weight was affected by mean air temperature for March and October.
Keywords
air temperature factors; annual variation; fruit characteristics; persimmon;
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