Preharvest Drop Control of 'Tsugaru' Apple with Combined Use of Aminoethoxyvinylglycine and Several Adhesive Agents

Aminoethoxyvinylglycine과 몇몇 전착제의 혼용처리에 의한 '쓰가루' 사과의 수확전 낙과방지

This experiment was conducted to evaluate preharvest drop control in 'Tsugaru' apple with combined treatments of aminoethoxyvinylglycine (AVG) and several adhesive agents. AVG+Silwet L-77 at $75+1,000mg{\cdot}L^{-1}$ was most effective among the tested combinations. Little or no significant difference was observed among the different application times of AVG+Silwet L-77. AVG+Silwet L-77 significantly reduced preharvest drop while increasing fruit weight, fruit length, diameter and fruit firmness. All the tested combinations were generally effective in reducing preharvest drop as compared to dichlorprop and in maintaining better fruit quality.

Aminoethoxyvinylglycine과 몇몇 전착제의 처리가 '쓰가루' 사과의 후기낙과 방지에 미치는 효과를 구명한 바 AVG+Silwet L-77을 $75+1000mg{\cdot}L^{-1}$ 로 희석하여 수확 5~3주 전에 처리하는 가장 효과적이었으며 처리시기에 따라서는 유의차가 인정되지 않았다. 무처리에 비하여 이 약제처리시 과중, 종경, 횡경 및 과실경도가 현저히 증가하였다. 과중이 증가되고, 아울러 경도도 증가됨으로써 저장력이 향상되어 시장성이 높아질 것으로 추론된다.