Effects of Blackout Certain to Improve Quality of Onion(Allium cepa. L) under Room Temperature

양파 간이 저장시 차광조건이 품질에 미치는 영향

This study was conducted to reduce degradation of marketability by the rot and discolor of onion bulbs under room temperature from 1977 to 1998. Allium cepa cv. Changnyungdeago, late strain, was used for the test at the storage condition of non-shading, 55% and 95% shadings. The results obtained are as follows: The mean temperature was maintained lowly 1.0∼2.9$\^{C}$ in 55% and 2.0∼3.8$\^{C}$ in 95% shadings in contrast to nun-shading, but the relative humidity was a tittle higher in high shading than other shading condition. The illumination and color density maintained lowly in high shading. After 21 days of storage, the rate of discolored onion bulbs was significantly higher in non-shading(90.0%) than 55%(35.7%) and 95%(13.3%) shadings. The rotting rate by the end of August was a little decreased at 55%(25.4%) and 95% shadings(26.5%) in contrast to non-shading(28.9%), and total weight loss was maintained lowly in high shading.

양파를 간이저장 할 때 발생하는 부패 및 변색구에 의한 상품성 저하를 감소시킬 목적으로 무차광. 55% 차광 및 95%차광을 처리하여 시험한 결과는 다음과 같다. 1. 평균온도는 무차광에 비해 15%차광에서 1.0~2.9$^{\circ}C$가 낮았고, 95%차광에서는 2.0~3.8$^{\circ}C$가 낮았으며, 상대 습도는 차광정도가 높을수록 약간 높았다. 2. 처리별 조도 및 색도는 차광정도가 높을수록 낮았고, 저장 21일 후 변색구 발생율은 무차광 90.0%애 비해 55%차광 35.7%, 95%차광 13.3%로 차광처리에서 훨씬 적었다. 3. 부패율은 무차광 28.9%에 비해 95%차광 26.5%, 55% 차광 25.4%로 차광처리에서 적었고, 중량감모도 차광처리에서 적었다.