Investigation of Wood production of different cultivars of open-crown poplar in the comparative population of of Khorramabad station

Document Type : Research Paper

Authors

1 1Research Expert, Research Division of Natural Resources, Lorestan Agricultural and Natural Resources Research and Education Center, KhorramAbad, Iran

2 Ph.D. of Forestry, Dept. of Forestry, Faculty of Agriculture and Natural Resources, Lorestan University, Khoramabad, Iran.

3 Senior Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

4 Associate prof., Dept. of Range and Watershed Management (Nature engineering), College of Agriculture, Fasa University, Fasa, Iran

10.22034/ijf.2022.295175.1794

Abstract

One of the major problems in poplar cultivation is the existence of low-yielding poplar species and their traditional cultivation, which reduce wood production per unit area. To identify the most productive and adaptable clones to local climate and introduce them for mass wood production‌, ten clones of open-crown poplar based on the Randomized Complete Block Design (RCBD) with three replicates and planting spacing (4m × 4m), were selected and evaluated in Khorramabad Agricultural Garden Station for five years (2012-2015). Analysis of variance showed that the year and clone factors had a significant effect on height, diameter and volume increment. The mean comparisons showed that the highest (1.56 m) and lowest (0.77 m) of height increment belonged to Populus euramericana455 clone and Populus x interamericanes clone respectively. Also, the Populus euramericana455 clone had the maximum diameter increment (9.95cm) and Populus x interamericanes clone had the minimum (6/95) diameter increment. The Populus euramericana455 and Populus x interamericanes clones had the highest (8.85 cm) and lowest (1.16 cm) of volume increment in the fifth year respectively. In terms of pest resistance and wood production, Populus deltoides 63/10, Populus deltoids and Populus x costanzo had a better conditions.      

Keywords


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