Modification of the latex paint infusion technique for the determination of vessel-length in hardwoods

Summary The problem of vessel length determination in hardwood trees has been approached in many ways by various workers. The paint infusion technique was utilized in a research programme investigating the subject of vessels of New Zealand beech (Nothofagus) stem sapwood. Two different models of stainless steel paint applicator were used: (a) the horizontal T shaped applicator and (b) the new vertical Y joint applicator. Applicator construction is discussed. The techniques are modifications of the Zimmermann and Jeje (1981) latex paint infuction method.The author gratefully acknowledges Dr. B. G. Butterfield, Dr. B. A. Meylan and L. A. Donaldson for advice and Dr. L. M. H. Middleton for field assistance