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Paper Information

Journal:   IRANIAN JOURNAL OF FOREST AND POPLAR RESEARCH   FALL 2008 , Volume 16 , Number 3 (33); Page(s) 444 To 454.
 
Paper: 

COMPARING THE GROWTH OF PAULOWNIA FORTUNEI AND POPULUS DELTOIDES PLANTATIONS UNDER DIFFERENT SPACING IN NORTHERN IRAN

 
 
Author(s):  RIAHIFAR NAHID, FALAH ASGHAR, MOHAMMADI SAMANI K.*, GORJI MAHLEBANI Y.
 
* FACULTY OF NATURAL RESOURCES, UNIVERSITY OF MAZANDARAN
 
Abstract: 

This study was carried out to investigate poplar and paulownia’s growth under different spacing in a 5-year plantation located in Mazandaran wood and paper company’s fields in Sari-Iran. The trees were planted in three different spacing: 3×3m, 4×4m, and 5×5m, each established in 3 replications. The quantitative parameters including DBH and Height were measured and a comparison was made between the stands height and diameter growth. Survival percentage was also calculated across the stands. The averages were statistically compared in a randomized block design in two forms: 1) two species were separately compared in their threefold spacing, and 2) two species were crossed in each spacing. Tukey’s test was used to compare the averages. Results showed a promising rate of survival over the stands. Moreover, the growth was significantly different amongst different spacing of the stands, representing the best growth in 3×3m spacing. In addition, the height of poplar was significantly more than those of paulownia, though the diameter growth assessment showed a reverse trend between the stands.

 
Keyword(s): FAST- GROWING SPECIES, GROWTH, SPACING, POPULUS DELTOIDS, PAULOWNIA FORTUNEI
 
References: 
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