Heartwood formation in pinus radiata (D. Don)

Abstract

IN a paper which is to be published by the New Zealand Forest Service entitled "Heartwood Formation in Pinus radiata", it has been shown that conditions which are conducive to the occurrence of physiological drought retard heartwood formation in this species, but that where a deep root system can be developed in an area with adequate rainfall but without drying winds or low humidity heartwood formation is at a maximum. These findings are based on the statistical analysis of data from two hundred trees felled on twelve widely contrasted growing sites. © 1953 Nature Publishing Group.