Enabling selection for heartwood rot resistance and durability of Western red cedar lumber, a key resource for the value-added forest industry in Canada.

能够选择西部红雪松木材的心材抗腐性和耐久性，这是加拿大增值林业的关键资源。

• 批准号: 397499-2010
• 负责人: Mattsson, Jim
• 金额: $ 11.69万
• 依托单位: Simon Fraser University
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=515513
• 关键词: Enabling; selection; heartwood; rot; resistance

Based on lumber prices, Western redcedar (Thuja plicata) is at times the highest prized forest tree species in Canada and with a yearly export of more than $ 770 million in 2006. T. plicata lumber is regarded as durable and rot resistant and therefore highly priced for special outdoor applications such as decking, furniture, roof and wall shingles. The rot resistance of trees and the related durability of generated lumber is primarily attributed to high levels of tropolones, antimicrobial compounds that accumulate in the heartwood. Tropolones purified from heartwood are also used in the medical/natural medicine/cosmetic market primarily in Asia because of their strong antimicrobial properties. Although rot resistance is a key trademark for T. plicata lumber, there is considerable variation for this trait in second-growth trees, and a significant portion of cut trees are culled because of considerable internal rot. There is also a similar variation in lumber durability. The genetic stock used for T. plicata production in Canada is produced by the British Columbia Ministry of Forests and range, our major partner in this project. These genetic stocks are in turn used for seed production primarily by our industrial partner Western Forest Products

根据木材价格，西部红杉（Thuja plicata）有时是加拿大最珍贵的森林树种，2006 年的年出口额超过 7.7 亿美元。T. plicata 木材被认为耐用且耐腐，因此高度评价。价格适用于特殊户外应用，例如地板、家具、屋顶和墙板。树木的耐腐性和所生成木材的相关耐久性主要归因于高含量的托酚酮，这是在心材中积累的抗菌化合物。从心材纯化的托酚酮也因其强大的抗菌特性而用于主要在亚洲的医疗/天然药物/化妆品市场。尽管抗腐烂性是T. plicata木材的一个关键标志，但在次生树木中这一性状存在相当大的变异，并且由于大量的内部腐烂，很大一部分砍伐的树木被剔除。木材耐久性也有类似的变化。加拿大用于 T. plicata 生产的遗传种群是由我们在该项目中的主要合作伙伴不列颠哥伦比亚省森林和牧场部生产的。这些遗传资源主要由我们的工业合作伙伴 Western Forest Products 用于种子生产