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KMID : 0903619950360030371
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Journal of the Korean Society for Horticultural Science
1995 Volume.36 No. 3 p.371 ~ p.376
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Effects of Leaf and Fruit Application of Dichlorprop on Preharvest Drop , Ripening , and Ethylene Forming Systems in ´ Tsugaru ´ Apple Fruits
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Abstract
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To investigate the position effects of dichlorprop application on the preharvest drop, ripening, and ethylene forming system in ´Tsugaru´ apple fruits, 45.0 ㎎·liter^(-1) of dichlorprop was applied on the leaf, fruit, or leaf + fruit 25 days before harvest (22 July). In leaf and leaf + fruit application of dichlorprop, preharvest drop, firmness, and total acidity of fruits decreased, while soluble solids, 1-aminocyclopropane-1-carboxylic acid (ACC), ACC oxidase activity, and ethylene production increased. However, fruit application of dichlorprop had little effect on preharvest drop and ripening of fruit.
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