MESUROL – A FACTOR TOWARDS MORE REGULAR APPLE BEARING

Abstract

Chemical thinning of apple fruits 7.3 mm (cv. Gloster) and 9.3 mm (cv. Jonagold) in diameter was performed with Mesurol® WP 50 (concentration 1800 ppm). In 2001, intensity of differentiation on the treated Gloster cultivar trees was good in spurs and long bearing wood, and inadequate in one-year shots. Differentiation in untreated trees was inadequate. In Jonagold, differentiation was good in spurs, and poor in long bearing wood and one-year shots on the treated trees. In untreated trees, the differentiation in spurs was moderate whereas in long bearing wood and one-year shots inadequate.

Keywords

• Malus domestica Borkh.
• thinning
• differentiation
• productivity