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연구보문 : 자연과학; TiO2와 Kaolin 처리가 동양배의 수확 후 과실품질과 페놀함량 및 흑성병에 미치는 영향
최현석 ( Hyun Sug Choi ),정지훈 ( Ji Hoon Chung ),조정안 ( Jung An Cho ),김월수 ( Wol Soo Kim ) 한국국제농업개발학회 2013 韓國國際農業開發學會誌 Vol.25 No.3
This study was conducted to investigate effects of TiO2 and Kaolin application on fruit quality, phenolic compound, and foliar scab incidence of four Asian pear cultivars (Pyrus pyrifolia Nakaii) ‘Hosui’, ‘Hwangkeumbae’, ‘Niitaka’, and ‘Kamcheonbae’. Non-bagged fruits were treated with foliar application of 1.0% TiO2 or 10% Kaolin, while on conventional tree fruits were enclosed in doublelayered paper bags. Conventional trees had higher average fruit weight than those treated with TiO2 or Kaolin, but the total fruit weight was higher for both TiO2 and Kaolin applications due to the increased fruit numbers. ‘Hosui’ and ‘Kamcheonbae’ fruits had higher soluble solids contents for conventional trees than those treated with TiO2 or Kaolin. TiO2 application increased fruit firmness of ‘Hwangkeumbae’ and ‘Kamcheonbae’, which was also slightly increased by Kaolin application compared to conventional fruits. Conventional fruits had bright skin color but reduced total polyphenols amongst all fruit cultivar compared to those of TiO2 or Kaolin application. The scab incidence of ‘Hosui’, ‘Hwangkeumbae’, and ‘Niitaka’ was suppressed on conventional trees, while scab was completely prevented by the TiO2 application on ‘Kamcheonbae’.