Comparative growth of seven years old Grevillea robusta A. cunn. growth under Taungya system and pure plantation

Abstract

The paper summarizes the data on height, diameter and estimated bole volume of seven years old trees of Grevillea robusta grown under taungya system and in pure plantation. The maximum height of 12.5m with mean annual increment of (M. A I) of 1.5m was attained by the trees grown under taungya while those in plantation attained 11.3 m with M. A. I. of 1.4 m, The maximum diameter of 27 cm was found under taungya system with M. A I. of 3.1 em while inpure plantation was 23.7 cm with M.A.I. of 2.6 cm. The bole volume was greater under taungya system with a mean of 0.15 m3 while in plantation it was 0.1 m3. The overall growth was better under taungya system than on pure plantation.