林业科学2012，Vol.48Issue(5)：108-115,8.
广东三地幼龄檀香生长和结香的早期评价
Evaluation of Growth and Heartwood Formation of Young Sandal Plantations in Guangdong Province, South China
摘要
Abstract
The growth of 6-year-old sandal plantations in three sandal research bases of Guangdong Province, south China were investigated using a sample plot survey method, statistically differences were found among those three bases in terms of height, diameter at ground level(DGL) , diameter at breast height( DBH) , clear bole height( CBH) as well as crown(NS direction) width ( P < 0. 001 ), the base located in Zhanjiang got the best growth performance for most morphological indices, including an mean height of 6.05 m, an mean DGL of 12. 72 cm, an mean DBH of 10.27 cm, an mean CBH of 2.64 m and an mean crown of 3.20 m. The presences of heartwood were studied using an increment core, and the results show that 15%-20% of 6-year-old sandals have formed heartwood naturally. Essential oil was extracted from heartwood through a solvent extraction method, and the oil content ranges from 0. 66% to 1.76% . Oil composition as well as relative content of each component was also determined through gas chromatography-mass spectrometry(GC-MS) , the results indicate that the main components of essential oil were the same as the ISO standards for 5. album oil, while the quality have not meet with the ISO standard due to the low content of santalols, total santalols range from 34. 13% to 37.91%. Early growth and heartwood formation performance show that large scale sandal plantations grow well in Guangdong Province.关键词
檀香/心材形成/精油成分/广东省Key words
San I alum album/ heartwood formation/ essential oil composition/ Guangdong Province分类
农业科技引用本文复制引用
刘小金,徐大平,杨曾奖,张宁南,杨丽莙,邓和大,张小云..广东三地幼龄檀香生长和结香的早期评价[J].林业科学,2012,48(5):108-115,8.基金项目
国家林业局"948"项目"檀香高效栽培技术与人工促成心材形成技术引进"(2008-04-02) （2008-04-02）
广东省林业科技创新专项资金"珍贵树种良种选育与高效栽培技术研究与示范"(2010KJCX002-01) （2010KJCX002-01）
科技部农业科技成果转化资金项目"檀香资源培育与利用技术集成与示范"(2011GB24320004). （2011GB24320004）
