The effect of bioregulator Gerba 4LG trearment on lateral shoot formation in maiden apple tree

Abstract

The object of the research was apple varieties Golden Delicious Reinders, Red Velox, Gala Buckeye and Red Jonaprince, grafted on M 9. The grafting method was chip budding. Planting distance was 80x35 cm. In order to intensify the formation of the anticipated shoots in the area of the crown formation, various technological processes were used: 1. Free eyelid growth (control); 2. Topping of apical leaveswascombined with two treatments with Gerba 4LG at a dose of 25 ml/liter of water. It was established that the most reasonable garnishing of the crown formation with anticipated shoots at all studied varieties was obtained by topping the apical leaves in the apex area once when the graft reaches 65-70 cm height combined with twice the sprinkling Gerba 4LG at 25 ml/liter of water. The first treatment was done after breaking the apical leaves and the next at 5-7 days.