Abstract

Recently, tree improvement programme of eucalypts has been launched in India particularly Kerala for disease resistance and higher productivity. Based on the recent research results, this paper examines the scope for improving fibre yield and quality of two extensively planted eucalypts, viz. Eucalyptus grandis and E. tereticornis. The age and growth-related variations in wood properties particularly density, heartwood proportion and fibre length suggest that there is tremendous opportunity for reducing the rotation age (8-9 years) and accelerating tree growth in pulpwood plantations. Because of small tree-to-tree variations observed in wood properties of existing plantations especially density and fibre length, suitable provenances obtained from Australia are being tested to establish a broader genetic base for selection. The pulping trials of ""plus"" trees selected in Kerala for disease resistance and faster growth in both the species did not show significant differences