Volume, Pulp and Paper-making Traits of Pinus maximinoi Provenances Planted at Two Sites in South Africa

SYNOPSIS

Two provenance trials of P. maximinoi H.E. Moore growing in the eastern Transvaal, South Africa, were assessed for growth, pulp and paper-making traits at approximately 11 years of age. Provenances were significantly (p<0,05) different for breaking length, burst index and stretch (%) at one site and for pulp yield (%) at the second site. Volume per tree was not significantly correlated with any pulp and paper-making trait except for kilogram fibre per tree which is the product of volume, gravimetric density and pulp yield. Gravimetric density was significantly (p<0,05) and negatively correlated with breaking length and burst index through the correlation with tear index was positive.

Keywords:

• Pinus maximinoi
• micropulping
• hand sheet properties
• provenances