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http://dx.doi.org/10.7744/cnujas.2013.40.2.107

Effects of fruit bags and bagging time on fruit quality indices at harvest time in 'Wonhwang' and 'Whasan' pears  

Jung, Ok-Kun (Cheonan-Si Agricultural Development & Technology Center)
Lee, Ug-Yong (Department of Horticulture, Chungnam National University)
Ahn, Young-Jik (Foundation of University-Industry Research Collaboration, Paichai University)
Lee, Hyuk-Jae (Cheonan-Si Agricultural Development & Technology Center)
Hwang, Yong-Soo (Department of Horticulture, Chungnam National University)
Chun, Jong-Pil (Department of Horticulture, Chungnam National University)
Publication Information
Korean Journal of Agricultural Science / v.40, no.2, 2013 , pp. 107-113 More about this Journal
Abstract
We tested fruits quality and skin coloration of two pear cultivar 'Wonhwang' and 'Whasan' produced by bagging with different kinds of paper bags in the Cheonan area, Chungnam Province, Korea. The fruits were bagged at 35, 45, 55 or 65 days after full bloom (DAFB) with 3 kinds of double layer paper bag which consisted of grey color, yellow color and newspaper for outer layer. The great extent of light interruption was observed in grey colored outer paperbag among three kinds of paperbag which showed only 0.46% of lowest light transmittance when compared with 43.7% and 40.0% of yellow paper and newspaper, respectively. The development of skin redness ($a^*$) increased with the delay of bagging time in two pear cultivars. But the fruits treated at 65 DAFB showed uneven coloration and excessive development of redness which represented low fruit external appearance value. Uniform flesh firmness was attained at the fruits bagged with grey outer color paperbag regardless of bagging time, although the fruit quality indices including soluble solids and titratable acidity did not change significantly by using different kind of fruit bags and bagging time in two pear cultivar. Based on our results, it was explained that the grey-colored fruit bag had positive effect on the development of skin coloration without any detrimental effect on fruit quality factors in 'Wonhwang' and 'Whasan' pears.
Keywords
Firmness; Skin color; Soluble solids; Titratable acidity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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