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Effect of Ethephon on Fruit Enlargement and Coloring of 'Fuyu' Persimmon  

Kim, Ho-Cheol (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
Kim, Tae-Choon (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University)
Publication Information
Horticultural Science & Technology / v.28, no.5, 2010 , pp. 757-761 More about this Journal
Abstract
This research was conducted to investigate effect of ethephon on fruit enlargement and coloring of 'Fuyu' persimmon ($Diospyros$ $kaki$). At 7 weeks after ethephon treatment, fruit weight and diameter became significantly heavier and longer in 80 and $100mg{\cdot}L^{-1}$ than the other concentrations of ethephon. Fruit peel hardness decreased with increasing ethephon concentration. The decreased levels were apparent with the treatments beyond $40mg{\cdot}L^{-1}$ at the beginning, and then with those beyond $60mg{\cdot}L^{-1}$. Hunter $a^*$ and $Chroma^*$ of fruit peel treated with ethephon over $20mg{\cdot}L^{-1}$ were significantly higher compared to those with control ($0mg{\cdot}L^{-1}$), but there were no significant differences among those with the ethephon treatments over $20mg{\cdot}L^{-1}$. The increased levels of the $Chroma^*$ were apparent with the treatments beyond $60mg{\cdot}L^{-1}$ at the beginning and then with those of 20 and $40mg{\cdot}L^{-1}$. ${\beta}$-Carotene and lycopene contents of fruit peel were higher with the ethephon treatment beyond $40mg{\cdot}L^{-1}$. Although the ethephon application at 20 and $40mg{\cdot}L^{-1}$ had no effects on fruit enlargement, but fruit coloring was advanced by 2 weeks with the application at $40mg{\cdot}L^{-1}$.
Keywords
${\beta}$-carotene; coloring improvement; Diospyros kaki; hardness; lycopene;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
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