搜索结果: 1-9 共查到“林木遗传育种学 Density”相关记录9条 . 查询时间(0.078 秒)
Inheritance and Correlation Analysis of Pulpwood Properties, Wood Density, and Growth Traits of Slash Pine
Growth Traits Slash Pine Pulpwood Properties Wood Density
2023/6/5
Slash pine (Pinus elliottii) is the most important and a fast-growing material that is used for industrial timber and pulp production. A breeding program of slash pine that aims to improve wood proper...
Impact of logging intensity on stem density, basal area and biodiversity indices five years after logging in a Caspian hardwood forest
harvesting intensity forest biodiversity northern Iran
2017/6/26
The aim of the present study was to analyse the impacts of different logging intensities after five years from logging including non-logged, low (3.4 felled stems per hectare), medium (5.2 felled stem...
Effects of seed origin, growing medium and mini-plug density on early growth and quality of black locust (Robinia pseudoacacia [L.]) seedlings
mini-plug seedlings growth traits survival mini-plug transplants forest restoration
2015/4/14
The objective of this study was to identify optimal growing conditions for the production of high-quality mini-plug seedlings of black locust (Robinia pseudoacacia [L.].). Two seed origins (Greek and ...
Influence of stand density, thinning and elevated CO2 on stem wood density of spruce
stand density stem wood density thinning
2015/3/6
Stem wood density (SWD) of young Norway spruce trees (Picea abies [L.] Karst.) growing at ambient (A variant, 350 μmol(CO2)/mol) and elevated (E variant, A + 350 μmol(CO2)/mol) atmospheric CO2 concent...
A weighted relative density model applied to loblolly pine（Pinus taeda L.）stands
relative density size-density Pinus taeda L loblolly pine
2009/3/3
We present a weighted, individual-tree relative density approach whose reference conditions have the same distribution of crown areas and species as a subject stand. An initial evaluation of the me...
The Effects of Origin and Regional Differences on the Density of Douglas Fir [Pseudotsuga menziesii（Mirb.）Franco] Wood
Origin and Regional Differences Density of Douglas Fir [Pseudotsuga menziesii (Mirb.) Franco] Wood
2009/1/16
In this study, the effects of origin and regional differences on the density of Douglas Fir [Pseudotsuga menziesii (Mirb.) Franco] wood were investigated. A total of 18 trees of 23 different ages obta...
Effect of some Preservation Chemicals on the Density of Scoth Pine and Oriental Beech Woods
Preservation Chemicals Density Scoth Pine Oriental Beech Woods
2009/1/15
This study was designed to determine the effect of impregnation with some chemicals on the density of wooden materials. For this reason, experimentals were prepared from Scotch pine and Oriental beech...
Effects of Seed Origin and Site on Wood Density of Sitka Spruce（Picea sitchensis（Bong.）Carr.）Grown in Britain
Seed Origin Site Wood Density Sitka Spruce Plantations
2009/1/13
Since density may have a direct influence on wood properties and because density is a factor under genetic control, this study details the effects of seed origins and sites on density. In addition to...
The Effect of Moisture Content and Wood Density on the Preservative Uptake of Caucasian fir（Abies nordmanniana（Link.）Spach.）Treated with CCA
Moisture content Wood density Preservative uptake Full-cell process CCA Caucasian fir Abies spp
2009/1/13
The effect of moisture content and wood density on the preservative uptake (on the basis of the percentage of void volume filled (VVF%)) of Caucasian fir (Abies nordmanniana (Link.) Spach.) was studie...