양파의 예건 방법 및 기간이 저장 중 부패에 미치는 영향을 구명하기 위하여 만생종인 창녕대고 품종을 이용하여 1997년~1998년의 2개년 동안 양파를 수확 후 노지 포장과조립식 간이하우스(통풍) 및 조립식 간이하우스(무통풍)에서 1~3일간 예건 후 저장하여 실험하였다. 예건 기간중의 최고기온은 무 통풍 하우스에서 가장 높았고 노지 포장에서 가장 낮았으며 특히 무통풍 하우스에서 1997년 처리 2일째 및 3일째와 1998년 처리 2일째는 41.6

To decrease the rot of onion bulb during storage in simple house, later cultivar 'Changnyeungdaego' was dried after harvest on the field, ventilation house and non-ventilation house during 1 to 3days in 1997 and 1998. The maximum air temperature during pre-drying maintained highest in the non-ventilation house and lowest in the field, especially higher than 41.6 at second and third day in 1997 and second day in 1998 on the non-ventilation house. Water content of onion bulbs showed 90.3∼89.5% at harvest and reduced 0.3∼l.8% in 1997, 0.2∼2.6% in 1998 after pre-drying, the rate of reduction was highest on the field and lowest on the ventilation house. Mean of maximum air temperature was 39.2 in 1997 and 37.1 in 1998 and relative humidity was 79.3% and 72.7% in July of 1997 and 1998, 78.2% and 79.1% in August of 1997 and 1998 during storage on the simple house after pre-drying. Rotting ratio of onion bulb showed higher in 1998 than 1997, but rotting appeared earlier 1997 than 1998. Total rotting rate as influenced by place and days of pre-drying was the lowest on the ventilation house, and highest on the non-ventilation. As the days of pre-drying increase, rotting rate of onion bulbs were lower. As above results, 1 or 2days of pre-drying on the ventilation house and 2 or 3days of pre-drying on the field were recommended to decrease the rotting onion bulb during storage.

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