Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Determination of Optimum Harvest Time for 'Hwasan' (Pyrus pyrifolia Nakai) on the Premise of the Shelf Life at Ambient Temperature

배 '화산'의 상온유통 기간을 전제로 한 원예적 성숙기 설정

Kim, Yoon-Kyeong;Kang, Sam-Seok;Cho, Kwang-Sik;Kim, Myung-Su;Jeong, Sang-Bouk;Son, Dong-Su
김윤경;강삼석;조광식;김명수;정상복;손동수

  • Published : 2007.12.31
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Abstract

‘Hwasan’ (Pyrus pyrifolia Nakai) is harvested in 160 days after full bloom (DAFB). But the fruit which is harvested at this point has a problem in the marketing for short shelf life, about 10 days. So, this study was aimed for determining the optimum matured time and harvest time on the premise of shelf life of ‘Hwasan’. The change of fruit characteristics was investigated from 135 to 160 DAFB in each 5 days terms and the shelf life of each fruits was examined. In the result of this experiment, starch concentration rapidly decreased in 140 DAFB, the change of soluble solids concentration of fruit harvested after 150 DAFB is gentle 13.0oBx or above and sucrose concentration reached the highest peak 5% at 155 DAFB. The horticultural harvest time is about 150 DAFB in terms of changes of hardness, soluble solid concentration and starch concentration. The fruit harvested in 150 DAFB is sustained 12 N during 30 days at ambient temperature and it is edible. Also the hardness of fruit harvested in 165 DAFB decreased less than 12 N and the freshness of fruit is a little bit low and sometimes the smell is strange after 10 days at ambient temperature. The shelf life of fruit harvested in 150, 155-160 and 160 DAFB are about 30, 20 and 10 days respectively in terms of changes of water loss, soluble solids concentration, hardness and sensory evaluation.

Keywords

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