DOI: 10.1016/j.foreco.2017.03.002
Scopus记录号: 2-s2.0-85014671195
论文题名: The interactive effect of root disease and climate on wood properties in halfsibling Douglas-fir families
作者: Cruickshank M.G. ; Filipescu C.N.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 392 起始页码: 58
结束页码: 67
语种: 英语
英文关键词: Abiotic tolerance
; Disease resistance
; Disease tolerance
; Douglas-fir
; Wood properties
Scopus关键词: Atmospheric humidity
; Forestry
; Hardwoods
; Biotic and abiotic stress
; Disease resistance
; Disease resistance response
; Douglas fir
; Environmental stressors
; Interactive effect
; Pseudotsuga menziesii
; Wood properties
; Wood
; Armillaria ostoyae
; Pseudotsuga
; Pseudotsuga menziesii
英文摘要: Certain tree phenotypes enhance wood value properties and promote adaptation to climate extremes. However, the disciplines of wood science, physiology, and pathology rarely intersect to elucidate how survival, productivity, and wood property traits relate. Reaction to biotic and abiotic stress agents expressed in trees as disease resistance or tolerance were studied at the cell and tissue level. Five field-grown 21–22-year-old maternal halfsibling Douglas-fir Pseudotsuga menziesii var. glauca (Beissn.) Franco families were inoculated with Armillaria ostoyae (Romagn.) Herink to determine the interaction between disease, climate, and family on wood properties obtained from cores. The families originated from a lower elevation ecosystem and were categorized a priori as fungal disease resistant, tolerant or susceptible from a field study. Cell property changes suggestive of hydraulic adaptation to low precipitation were similar but lesser than the changes resulting from fungal root infection. The greatest increase in wood density occurred in disease resistant families after infection through a combination of thicker cell walls, smaller tracheid radial diameter, and reduced earlywood width. Microfibril angle and modulus of elasticity were affected differently with respect to changes in atmospheric relative humidity. Disease resistant compared to susceptible and tolerant families had inherent differences regardless of infection status. The sudden and localized changes in wood density associated with a disease resistance response could negatively impact on product quality, uniformity, and growth; on the other hand, denser wood and reduced growth associated with disease resistance may enhance drought survival. Understanding the interaction of these traits is important for adaptation to environmental stressors. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64395
Appears in Collections: 影响、适应和脆弱性
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作者单位: Natural Resources Canada, Canadian Forest Service, Canadian Wood Fibre Centre, 506 W. Burnside Rd, Victoria, BC, Canada
Recommended Citation:
Cruickshank M.G.,Filipescu C.N.. The interactive effect of root disease and climate on wood properties in halfsibling Douglas-fir families[J]. Forest Ecology and Management,2017-01-01,392