沉香产量性状与生长性状的相关性分析  

The Correlation Analysis Between Yield Traits and Growth Traits of Agarwood

作　　者：毛积鹏 蒋开彬 阮唯坚 罗峰 黄少伟 

机构地区：[1]华南农业大学林学与风景园林学院,广东省森林植物种质创新与利用重点实验室,广东广州510642

出　　处：《西南林业大学学报（自然科学）》2017年第6期15-22,共8页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家林业公益性行业科研专项(201204303)资助

摘　　要：通过对6年生越南和化州沉香树单株进行人工结香处理后,测定沉香树单株的胸径、冠幅、木材密度、结香率和含油量等性状,分析了沉香产量和生长性状的相关关系。结果表明:沉香树个体间的生长性状差异较小,但产量性状在个体间差异极大;越南样品的树高,胸径显著高于化州样品(P<0.05),结香层干质量和油产量极显著高于化州样品(P<0.01);树冠体积和胸径与油产量和结香层干质量的多元线性回归模型分别为:油产量=-0.111+0.004×树冠体积+0.010×胸径,结香层干质量=-0.802+0.23×树冠体积+0.72×胸径;结香层干质量和油产量与胸径的S函数回归模型分别为结香层干量=exp(3.705-74.239/胸径),油产量=exp(2.297-83.3/胸径)。沉香产量性状与生长性状存在显著(P<0.05)或极显著(P<0.01)正相关,说明生长快、结香力高的个体沉香产量高。Measuring the diameter at breast height （ DBH）, chcanopy, density of wood, agarwood formation rate, oil content and other traits after the individual process of artificial agarwood inducing 6 years aloes plants of Vietnam and Huazhou. Correlation analysis between yield traits and growth traits of agarwood has been developed based on the measured results. There were no significant differences between individuals of growth traits. However, there have significant differences of yield traits between individuals. Moreover, height and DBH of Vietnam samples were higher than that of Huazhou samples. Dry weight of the section agarwood （DWA） and oil yield （OY） of Viet- nam samples were significantly higher than that of Huazhou samples. The multiple linear model between tree crown volume （CV） and DBH and OY and DWA were OY=T-0. 111 ＋ 0. 004 ＊ CV ＋ 0. 010 ＊ DBH and DW=-0. 802 ＋ 0. 23 ＊ CV ＋ 0. 72 ＊ DBH, respectively. The S function regression model between DW and OY and DBH were DW = exp （3. 705-74. 239/DBH）, OY = exp （ 2. 297-83.3/DBH）, respectively. Results indicates that they have a sig- nificant positive correlation or high significant positive correlation between yield traits and growth traits of agarwood, and they have a high individual yield of agarwood with rapid growth properties and high formation abilities.

关 键 词：沉香 产量性状 生长性状 相关性 

分 类 号：S722.5[农业科学—林木遗传育种]