investigation on the effect of planting space on fiber morphology of acer velutinum l.

this research was conducted to investigate the effect of planting space on fiber morphology of acer velutinum. in this work, from each treatment including planting space of 1×1, 1.5×1.5 and 2×2 meters, four trees were cut from shastkalateh plantation of gorgon university and factors such as length and annual diametrical growth of trees as well as length, diameter and wall thickness of fibers were measured. strands prepared from annual rings from the core to bark and then defiberation performed using franklin method to analyze morphological properties. the results showed that increasing planting space, led to increased length and annual diametrical growth of the trees. results of the measurement and comparison of trees’ fiber length, diameter and wall thickness in various planting space and three different heights of the trees (1.5 meter, 50% and 75% of trees’ height) showed no significant differences at the one percent statistical error level. however, by increasing of the planting space, length of fibers increased, and their diameter and wall thickness decreased.