SILVICS OF Michelia champaca (GINI-SAPU): A COMMON TIMBER
TREE GROWN IN KANDYAN HOMEGARDENS OF SRI LANKA
H.M.G.S.B. Hitinayake, H.M.L.S. Dharshana and D.H.M.S.S. Dissanayake
Department of Crop Science, Faculty of Agriculture,
University of Peradeniya
Michelia champaca (gini-sapu) is an exotic which was introduced to Sri
Lanka from India and first planted around Hindu temples as an ornamental
tree. M. champaca has naturalised in the mid country wet zone of Sri Lanka.
It has become a popular timber tree among farmers managing Kandyan homegardens.
Also it has been used for enrichment of some small forest in the Kandy
area. Fewer restrictions prevail with respect to harvesting and transport
of Michelia champaca timber. It is classified within the second hard wood
The object of this paper is to discuss the main silvicultural features
of Michelia champaca based on the results of several on going experiments
conducted by the authors on the various silvicultural aspects of Michelia
champaca. In addition information obtained from research publications
are also included along with the citations. They include seed treatments,
seed viability, storage and light requirement for seedling establishment
and growth and pruning regime practised with individual trees. Tables
derived from a tree inventory conducted to estimate total and merchantable
wood volumes and financial returns under standard discount rates using
easily measurable parameters such as tree height, trunk diameter and age
are also included here.
The experiments on seed treatments have indicated that Michelia champaca
could be propagated using treated seeds. The recalcitrant behaviour of
seeds indicated that viability deteriorates rapidly with lowering moisture
content but can be stored under low temperatures. The seedling growth
and establishment rates increased with increasing light intensities and
the best performance was shown under open conditions. The volume and financial
value tables derived will serve as important tools in measuring timber
volumes and financial values of standing trees. These tables can also
be used in the identification of optimum harvesting age and size.
Department of Forestry and Environmental Science,
of Sri Jayewardenepura,Sri Lanka. 1995-2000. All rights reserved.