The inter-relationships between angle of inclination, height and number of sprouted teak (Tectona grandis Linn. F) stumps

Abstract

Experiments were conducted to investigate the dependence of number of sprouted teak (Tectona grandis Linn. F) stumps on the height above root collar and angle of inclination of planted teak stumps. The studies were aim-ed at developing suitable methods of converting teak seedlings into stumps and planting practices to ensure pro-duction of high number of sprouted teak stumps, to address the problem of low survival rate of planted teak stu-mps in large-scale plantation development. The angle of inclination, height above root collar and time, and the combined effects of the factors had significant influence on the number of sprouted teak stumps. The least num-ber of sprouts was obtained from teak stumps of 1 cm in height planted horizontally, while the highest number of sprouts was obtained from teak stumps of 10 cm and set at 60 PoP inclination. The reciprocal model fitted the trends in number of sprouted teak stumps with time.