논문 상세보기
pp.254-259
본 시험은 괘대재배를 한 ‘풍수’, ‘황금배’, ‘신고’, 그리고 ‘감천배’의 관행구와 무대재배를 한 과실에 TiO2나 Kaolin를 엽면처리 하였을 때 과실품질과 흑성병에 미치는 영향을 조사하고자 수행되었다. 1. 관행재배구는 TiO2나 Kaolin 보다 평균과중은 증가하였지만, 수량이 현저하게 감소하여 총 과실생산량은 감소되었다.2. 관행재배구에서의 ‘풍수’와 ‘감천배’의 당도는 TiO2나Kaolin 처리구 보다 높았다.3. ‘황금배’와 ‘감천배’의 과실 경도는 TiO2 처리시 가장 높았으며 Kaolin처리시도 다소 증가시켰다. ‘풍수’와 ‘신고’는 처리 간에 차이가 없었다.4. 과피색은 관행재배구에서 가장 밝은 색도를 보였다.5. TiO2와 Kaolin 처리는 품종에 상관없이 총 폴리페놀 함량을 증가시켰다.6. 엽의 흑성병 발생 억제율은 관행재배구가 ‘풍수’, ‘황금배’,‘신고’에서 낮게 나타났으며 ‘감천배’는 TiO2 처리로 100% 억제되었다.
This study was conducted to investigate effects of TiO2 and Kaolin application on fruitquality, phenolic compound, and foliar scab incidence of four Asian pear cultivars (Pyrus pyrifoliaNakaii) ‘Hosui’, ‘Hwangkeumbae’, ‘Niitaka’, and ‘Kamcheonbae’. Non-bagged fruits were treated withfoliar application of 1.0% TiO2 or 10% Kaolin, while on conventional tree fruits were enclosed in double-layered paper bags. Conventional trees had higher average fruit weight than those treated with TiO2 orKaolin, but the total fruit weight was higher for both TiO2 and Kaolin applications due to the increasedfruit numbers. ‘Hosui’ and ‘Kamcheonbae’ fruits had higher soluble solids contents for conventionaltrees than those treated with TiO2 or Kaolin. TiO2 application increased fruit firmness of ‘Hwangkeum-bae’ and ‘Kamcheonbae’, which was also slightly increased by Kaolin application compared to conven-tional fruits. Conventional fruits had bright skin color but reduced total polyphenols amongst all fruitcultivar compared to those of TiO2 or Kaolin application. The scab incidence of ‘Hosui’, ‘Hwangkeum-bae’, and ‘Niitaka’ was suppressed on conventional trees, while scab was completely prevented by theTiO2 application on ‘Kamcheonbae’.
